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Why Fast Charging Doesn’t Work on Samsung

Table of Contents

Adaptive Fast Charging: Compatible with Other Technologies

Today, there are many alternative fast charging technologies developed by phone manufacturers. For example, Huawei uses Super Charge in its phones, OnePlus smartphones are charged with a Dash Charge adapter, and Lenovo offers its own Turbo Power technology.

fast, charging, doesn, work, samsung

Can Samsung Galaxy be charged with non-native fast charging devices? This is a difficult question, the answer to which must take into account the particular features of a particular technology.

Huawei’s Super Charge is designed for Kirin chips, and the Chinese don’t care much about compatibility with other chips. Since the fast charge controller is in the phone and not in the charger, Super Charge will not work with your Samsung phone. In practice, the phone can be charged, but the speed will be normal.

Turbo Power is a technology based on Qualcomm’s Quick Charge, so there is compatibility with Samsung phones, as well as backward compatibility of Adaptive Fast Charging with Lenovo phones.

Dash Charge technology for OnePlus is designed to violate USB Type-C standards and is therefore not recommended for use with other phones. In theory, a device connected to a Type-C port (that is, a phone) is not in danger, but it is better not to risk it. The power circuits in Dash Charge are partially taken out into the adapter, and who knows what the Chinese soldered there.

VOOC and SuperVOOC for Oppo smartphones are essentially the same Dash Charge, only for another subsidiary brand of the Chinese company BBK Electronics. The technology was created in violation of USB Type-C standards, so we do not recommend using VOOC chargers with other phones. How to avoid connecting VOOC branded cables to laptops, USB hubs or other power supplies.

Fast charging: general information

Today, a conventional charger delivers 10 watts of power. If your phone supports fast charging, the battery can be recharged with a high power adapter. In theory, the power can be 20 watts, but in practice, manufacturers are limited to 18 watts. The higher the power, the faster the battery charges.

The first fast charging technology was developed by Qualcomm, which introduced the Quick Charge 1.0 standard in 2013. Today, the QC 1.0 standard is not used, since it has been replaced by more efficient technologies, from QC 2.0 to QC 4. There is even Quick Charge 5.0, but there are no smartphones supporting this protocol at the beginning of 2019 yet.

Since Quick Charge is a proprietary technology that requires royalties to be transferred, the Korean company has developed its own Samsung Adaptive Fast Charging standard. Samsung Fast Charging is based on the Quick Charge 2.0 standard and is compatible with QC certified chargers.

Samsung Fast Charge for Galaxy: The Complete Guide!

Many Samsung smartphones support fast charging, and this raises a number of concerns for some users. The main issues are related to the safety of the technology itself and the life of the battery, which is being charged at an accelerated rate. The compatibility of Samsung fast charging with Quick Charge and alternative technologies from other manufacturers raises a lot of questions.

In this post, we will give answers to the most common questions, and at the same time we will tell you how you can turn off Samsung Fast Charging at the operating system level, and how to turn it back on.

How to enable Samsung Fast Charge?

Some users are afraid to charge their phone using fast charging technology. They’ve heard about reduced battery life and the risk of overheating the device. Plus, the Galaxy Note 7 with flammable batteries is still fresh in mind.

If you want to enable or disable fast charging, Samsung allows you to do so at the operating system level. Note that not all manufacturers implement this feature at the software level, so the Koreans are great in this regard. Here’s a step-by-step guide on how to do this.

How Samsung Adaptive Fast Charging Works

The Samsung Adaptive Fast Charging standard is based on a stepwise change in current power depending on the battery charge density (in other words, based on the percentage of charge). If the battery is low, the adapter delivers a maximum power of 18 watts. Peak power is achieved by increasing the voltage to 12 volts, while the amperage is 1.67 amperes. As the percentage of charge increases, Samsung Fast Charge changes the current settings. The power is reduced to 15 watts and then to 10 watts. Decrease in power occurs in steps, and not smoothly. The first stage is to reduce the voltage to 9 volts, the second to 5 volts. The current strength in this case is either 1.67 amperes or 2 amperes.

Stepwise change of current parameters is a drawback of Samsung Adaptive Fast Charging technology. This reduces the efficiency of recharging the battery because the controller cannot select the optimal current settings. In comparison, Quick Charge 3.0 and subsequent standards allow voltage (voltage) to be changed in 0.2 volt increments, which not only improves charging speed, but also efficiency and safety.

Samsung Fast Charging: Quick Charge compatible

Samsung Adaptive Fast Charging is compatible with any charger that is Quick Charge certified. This means that you can safely charge your phone with an adapter that says Quick Charge 2.0 or Quick Charge 3.0.

It should be borne in mind that in any case, the phone will be charged using the Adaptive Fast Charging technology, which is based on QC 2.0. Current parameters (voltage, current, power) will change stepwise, not smoothly. Charging speed isn’t optimal, but Galaxy smartphones charge fast enough anyway.

How to Disable Samsung Fast Charging

Lower the top curtain, click on the gears and go to the Settings section. Or go to Settings in the way that you think is more convenient.

In the settings, click on the “Optimization” menu item. 3. On the Optimization tab in the lower left corner, find the Battery icon. Push.

In the “Battery” section, click on the three dots in the upper right corner and open “Advanced settings”. 5. In additional settings, turn on or off the switch opposite to fast charging. Turned on. and the phone is charged using the fast charging technology Samsung Adaptive Fast Charging. Turned off. and your Samsung Galaxy is charging at normal speed.

Do I need to disable the fast charging function?

You can turn off Samsung fast charging, but it’s hardly advisable. Overheating does not threaten your smartphone, unless you charge your Samsung Galaxy on a windowsill, on a car dashboard under the sun, or on a couch under a pillow. By the way, in all these cases, disabling fast charging does not protect against critical overheating.

If you’re playing, flipping through Instagram, chatting on social media, or watching a TV show while charging, your Samsung Galaxy will automatically go into normal charge mode and start charging slowly. You don’t need to forcibly disable fast charging in the settings.

Forcing Samsung Fast Charging to turn off is a redundant preventative measure, but it can still be used in some cases. For example, if you’re charging your Samsung Galaxy in the evening, when speed doesn‘t matter anymore. In such a situation, you can turn off fast charging just as unnecessary.

That’s all. If you have any questions, write in the comments.!

Missing fast charging on Samsung. reasons and what to do?

To begin with, we note that a full battery charge within the terms stated by the manufacturer is guaranteed only if during the process you do not use the phone and separate applications are not running on it in the background. Any running process will decrease the speed of the process to one degree or another, depending on the energy consumption of the application processes. Most of all, the charge is taken up by the turned on screen and running multimedia files. If you notice that the phone is charging too slowly. check if you have any additional services or applications enabled.

Also check if the option is active using the special section in the settings, which was mentioned above. You may have previously accidentally or intentionally disabled it.

If charging is pathologically slow or does not work at all, check the serviceability of the adapter itself using another device, and the connector on the phone using another cable. If you notice a malfunction, contact the service center to fix the breakdown.

What is Fast Charging in a Samsung smartphone

A standard charger in modern smartphones has a capacity of 10 watts. In phones with support for Fast Charge charging, the declared power of the adapter is 20 watts (in practice, this figure rarely exceeds 18 watts) Accordingly, the more the power of the unit increases, the faster the battery is charged.

This technology was first patented by Qualcomm, which proposed the Quick Charge standard in 2013. Since this technology is proprietary, the Korean manufacturer Samsung has developed its own development, Adaptive Fast Charging, based on Quick Charge 2.0 technology.

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How to enable fast charging on Samsung

If you have recently disabled the option, you can do this in the system settings. Using the example of disabling the option, consider how to reverse this process.

All About Samsung Fast Charging. User Guide

Samsung fast charging is one of the innovations of the well-known Korean brand, which significantly speeds up the process of charging a mobile device. Users are happy to use it, because it is so pleasant. not to wait several hours until the battery is fully charged, but to get the result within less than an hour. However, few people know how this option works, how it can be configured and even disabled.

How Samsung Fast Charging Works

The Samsung Adaptive Fast Charging technology is based on a stepwise change in current rates depending on the percentage of battery charge. The lower the percentage of charge, the more power is delivered by the adapter.

As the percentage of charging increases, the current setting in the adapter changes. The power gradually decreases to 10 watts at a 95% charge level. In this case, the decrease does not occur smoothly, but in stages. This significantly reduces the efficiency of recharging the battery, since the controller does not fully control the current changes. This bug was fixed in the updated Quick Charge 3.0 standards and all subsequent versions. the voltage during such charging changes in 0.2 volt steps, which is more efficient and safer for the phone battery.

Quick Charge compatible

Samsung Fast Charging is compatible with any Quick Charge-enabled device. With this adapter, you can charge any device with the Quick Charge 2.0 or Quick Charge 3.0 logo. In this case, keep in mind that the process will take place according to the standard of the 2nd version. A smooth power change will not work in this case, and the phone will charge a little slower than on the adapter of the third version.

How to disable fast charging

To disable the option, you need to repeat the following steps:

Swipe down the screen by lowering the top curtain with the system menu, and click on the settings icon. You can also go to the parameters using the phone menu.

  • In the parameters select the section “Optimization”.
  • Here we need the “Battery” icon. it is located in the lower left corner of the screen.
  • In the window that opens, click on the menu button (three dots in the upper corner of the screen) and open the “Additional settings”.

Here we see the mode switch. We translate it into the mode we need.

Fast Charge is a unique technology that makes our life much easier. Many people are still afraid to use it, believing that it harms the phone’s battery and wears it out faster. However, numerous tests and tens of thousands of satisfied customers prove that this option works exclusively for the benefit of the user.

How Standard Charging Works

Let’s remember the main points: every mobile phone is powered by a rechargeable battery, and each battery functions according to more or less the same principle. It consists in the fact that the battery has two electrodes. positive and negative, anode and cathode. The electrodes are immersed in electrolyte. This is a special liquid that is a catalyst for physicochemical processes, during which the movement of electrons from the anode to the cathode occurs. When electrons move, an electric current is generated, which feeds the battery and charges it.

In disposable batteries, which cannot be recharged, the chemical reactions that trigger the flow of electrons only occur once. After that, the batteries become unusable. But in a lithium-ion battery with reusable charging cycles, as used in a smartphone, these reactions are renewable. During the period when the battery is gradually discharged, chemical reactions generate electricity. When the battery is recharged, these reactions, on the contrary, absorb energy.

How to Activate or Deactivate Fast Charging on Samsung Phone

You can enable or disable the fast charging function in the settings. There are two ways to get into the settings on Samsung phones:

  • lower the notification curtain and tap the gear icon, then open the “Settings” section;
  • tap on the “Settings” application icon, which is located on the home screen of the phone.

In the settings, open the “Optimization” section, then go to the “Battery” section (the icon in the lower left corner). The next step is to go to “Advanced Settings”. To enter this menu, find three dots in the upper corner on the right side of the screen and click on them. In the “Additional settings” there is an item “Fast charging”. Turn it on by sliding the slider all the way to the right. If fast charging is already on, and you want to turn it off, then put the slider in the extreme left position.

Samsung Adaptive Fast Charging

  • the technology is used in the vast majority of Samsung devices;
  • technology compatible with Quick Charge 2.0.

Disadvantage. there is some conservatism of the manufacturer regarding the further improvement of this standard.

Initially, Samsung only used Adaptive Fast Charging on its Galaxy series devices. Unlike Quick Charge and other rapidly evolving standards, adaptive charging is fully compatible with the Exynos on-chip system commonly found in devices intended for sale in the global market. Adaptability implies the ability to vary the process for different conditions. As for charging, in this case, its power changes / adjusts. When the battery is heavily discharged, it charges with increased power. As soon as the battery reaches a sufficient level, the power decreases, but not smoothly, but in steps.

There are several charging options available for Samsung devices today. Now it is not only 18 watts, but also 25, and even 45 watts. Support for higher indicators was carried out not in hardware, but at the firmware level.

If a Samsung phone owner intends to use Adaptive Fast Charge for their device, they must additionally purchase a certified cable and adapter. By the way, there are also devices for car and regular fast wireless charging on sale. However, most Samsung smartphones support Quick Charge compatible accessories.

Quick Charge Basics

So, we know how batteries are charged and discharged. But fast charging is different from normal charging, and in order to understand how it works, you have to learn a little about what a battery charge controller is. You will also have to remember from the school physics course that voltage is measured in volts, current is in amperes, and watts are a unit of measure for power, that is, the amount of energy that is consumed per unit of time.

Higher amperage and higher voltage charge the batteries faster. But when it comes to the battery, these parameters are limited.

Galaxy S8/S9/S10: FAST Cable Charging Not Working? FIXED (10 Solutions)

Smartphone batteries are recharged when an electric current flows through them. But it must be remembered that the battery cannot take on infinitely much current; at peak loads, it breaks down and collapses. This is where you need a device such as a charge controller. This controller protects the battery from dangerous current peaks. It regulates the flow of electricity that goes into and out of the battery. Simply put, controllers regulate the current (in amperes) at which the charging process takes place, measuring both the strength and the voltage. They do not allow critical exceeding the permissible parameters that can damage the battery.

Acceptable / standard values ​​for USB charging are shown in the table below.

Voltage Current strength Max. power
USB 1.0 5 in 0.5 A 2.5 watts
USB 2.0 5 in 0.5 A 2.5 watts
USB 3.0 5 in 0.5 / 0.9 A 4.5 watts
USB 3.1 (USB-C USB-PD) 5–20 V 0.5 A / 0.9 A / 1.5 A / 3 A / 5 A 100 watts

Using Fast Charging on Samsung Phones

No matter what smartphone you use, you will constantly monitor the battery level and regularly connect your mobile device to a power source. Different models of mobile devices take different time to replenish the battery. Fast charging technology helps to reduce it. Today, more and more Android and iOS devices are receiving this feature. From the name of this technology, it follows that, subject to certain rules, the phone can be charged up to 80% in just half an hour.

Some Galaxy S10 phones (S10, S10 Plus and S10e) use a 15W charger (Qualcomm QuickCharge 2.0 technology), Samsung Fast Charge for the Galaxy S10 5G is rated at 25W, and the S20 and Note 10 adapter supports 45W The standard charger, with which most phones are charged, has 10 watts.

Fast charging standard

USB Power Delivery (USB-PD) technology has become the standard for fast charging. It was developed several years ago to transfer power in larger quantities. The maximum power of USB-PD, as we can see in the table, is up to 100 watts. Consequently, from the USB-PD connector, you can charge not only smartphones, but also some laptops that are equipped with USB-C.

The advantage of the USB-PD standard is that portable chargers that have a USB-C port can serve as a power source for other gadgets, or, conversely, these chargers can take charge for themselves, being powered by energy from third-party devices. USB-PD chargers are capable of transferring energy at high speed, for example, to a smartphone battery. And then, also at the highest speed, charge the laptop.

Different manufacturers use the USB-PD standard in different ways, each has its own pros and cons.

Why fast charging doesn‘t work

Often on the Internet, owners complain that the smartphone has stopped working normally. fast charging has disappeared. When the phone has a “fast charge”, but this function does not turn on or suddenly stops working, you need to find out the cause of the problem. There may be several reasons why the device takes longer to charge than usual:

  • use of non-certified accessories. adapter and cable;
  • physical malfunction of the phone connector or adapter / cable for connecting power;
  • deactivated (in software settings) fast charging function;
  • using the phone while charging (screen backlight on, running apps).

What can be done to make the smartphone charge quickly? First of all, check if the corresponding option is enabled in the “Settings” section. Then stop applications running in the background and do not use your phone while it is charging. Purchase and continue to use only manufacturer-approved accessories.

As a conclusion, we can say that Samsung Adaptive Fast Charge technology is an innovation that is very much in demand in modern conditions, which, if used correctly, does not harm a mobile device and allows the phone to be prepared for further work much faster.

How to turn fast charging on and off on Samsung Galaxy?

How to disable Fast Charging on Samsung Galaxy (S7, S8, S9 and any other model)? Why you need to disable and enable fast charging?

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Everyone loves when their devices charge quickly, right? This is why so-called fast charging technology is so popular. at the moment, almost every phone manufacturer has its own version. However, in some cases, fast charging may not be the best solution.

Thankfully Samsung understands the need to disable this option on the fly, and there is a way to do it on Galaxy devices running Marshmallow (and other Android versions) such as S9, S8, S7 / Edge, S6 Edge, S6 and Note 5.

How to Disable or Enable Fast Charging on Samsung Galaxy?

Now that you know why you should enable or disable fast charging on Samsung, let’s take a look at how you can do it. The good news is incredibly easy and you are just a few taps away from success.

I’m using the Galaxy S7 Edge for this tutorial, but the process is pretty much the same for all Galaxy devices. just keep in mind that if the device doesn‘t have wireless charging, the menu might look slightly different.

The first thing to do is go to the Settings menu by pulling down the notification bar and touching the cog icon in the upper right corner.

Scroll down the menu until you see Optimization. Click on it.

Now go to the bottom of this menu. Depending on the device, there are one or two options here: “Fast Charging” and “Fast Wireless Charging”. Toggling the slider to the right of any option enables / disables it.

It’s especially good that Samsung has separated these options so that you can choose to continue to charge quickly via the cable, but disable this feature for wireless charging, or vice versa. As you wish.

Why you need to disable Fast Charging on Samsung Galaxy?

But before we start, let’s take a closer look at the reasons, because I know a lot of people don’t understand: why would anyone want to disable fast charging on Samsung? There are several reasons, but the main one is heat, or rather, overheating. Fast charging uses a lot of current in a short time, so the device can easily overheat.

If it sits on a nightstand in a cool, ventilated area, this may not be a problem. But if the phone is on your lap while you are driving and the sun is falling on you, the device can get quite hot

On the other hand, devices like the Galaxy S7 / Edge with wireless charging have a fan in the charging cradle that can turn on when in use. Some people hear this faint noise and find it annoying, and disabling Fast Wireless Charging prevents it from occurring.

Why Sometimes Fast Charging Doesn‘t Work on Samsung?

Even when this feature is enabled, the phone won‘t always charge quickly, as noted by Samsung users. If you use your phone while charging or leave the screen on, it will charge much more slowly. It takes about three hours to fully charge a Galaxy S8 with the screen on. the same as a “regular” charge.

“Remember, just because you see the Quick Charge icon when you are using your device does not mean that you are really getting the maximum charge. This does not happen until the screen is turned off ”.

You will not find this helpful tip in the Galaxy manual.

And this isn’t the first time something gets in the way of fast charging. Google Pixel disables fast charging when the phone’s internal temperature goes over a certain threshold.

In my time with the Galaxy S8 Plus, I noticed a significant difference in how quickly it charges if I use the battery at the same time. But it never dawned on me that fast charging doesn‘t really work when the screen is on or the phone is in use.

In this case, if you need to quickly charge your Galaxy S8 before you go on the road or out for a walk, it is better to turn it on and leave it alone for a while.

Features of Samsung charging

Every owner of a smartphone or tablet from Samsung has probably come across a situation when it would seem quite high-quality, powerful and fast charging of another brand does not work correctly with his device. Why is this happening?

First, it must be said that the charger does not always work at full capacity. Like a power supply from a computer, it supplies the required current at the request of a gadget connected to it. This kind of protection is needed in order not to accidentally burn weak equipment by confusing adapters. Communication between the SZU and the controller takes place via the D-lines of the USB cable. All modes of operation are sequentially switched from the weakest to the optimal. So, the signal commands for Samsung equipment differ from the generally accepted standards. When connecting a third-party cable, the system simply does not recognize it and automatically switches to “safe mode” 5v and 0.2 amperes.

A similar technology is implemented in all types of connectors used by the manufacturer. On the one hand, it allows you to use Samsung’s new fast chargers with old devices, and on the other. gives a lot of inconvenience to customers.

How to choose a Samsung charging cable?

Today you can find a huge variety of USB cables on sale. Their can sometimes differ by an order of magnitude. How to understand all this variety and choose the right Samsung charging cable? Today we will try to answer this question in our article. Of course, in this text, we give tips for choosing the right Samsung charging cable. But these tips will also be relevant for equipment from other manufacturers.

USB Type C Samsung

One ring to rule them all! In the sense of one connector. The new universal standard designed to save you from the heap of cords in your bag. Laptops, smartphones, tablets, power banks, he can do anything. The bandwidth is much higher than the outdated micro USB, you can stick it in either side. But also not without surprises.

Original Samsung Type C cable. supports fast charging. Suitable for Galaxy S8, S9, Note 8, A8, A 2017, other tablets and phones with this type of connector. Voltages 5v, 9v, 12v and current up to 3A depending on power supply and battery capabilities.

Type C from third parties. it’s a lottery. For example, Hoco and Baseus wires are certified for use with Samsung and are fast. But there are no solutions from Remax, Nillkin and Xiaomi. If you decide to purchase such a product, consult the seller before purchasing.

What determines the charging speed?

To fully recharge the device, the current must fill its battery, just as water fills a vessel. The electric capacity of the battery is usually indicated in the characteristics. For example, the Galaxy Note 4 has 3220 mAh, which means a powerful three-ampere power supply will recharge the phone in just an hour, right? Not. In addition to the power of the charger, the process is also influenced by the bandwidth of the cable.

Micro USB Samsung

Perhaps the most common connector today. For over a decade, this connector has been installed in everything from wireless headphones to tablets. It is compact, fast and reliable enough. Has several standards:

Adaptive Fast Charge microUSB charging cable. proprietary current transfer technology with increased voltage up to 9v 1.67A which is equal to 15W. Fast charging Samsung microUSB for the company’s flagship line. Such chargers are used for Galaxy S7, S6, Note 4, Tab S and their modifications.

Normal cable for charging Samsung MicroUSB. at voltage 5v up to 2.1A current. Suitable for Galaxy J, A, Tab, Core, Grand, Star, Mega and other mid-budget product lines with Micro USB connector.

Important note! The South Korean manufacturer marks the wires with a small tag indicating the possible modes of operation. Faster Adaptive Fast Charge can be freely used with old equipment without the risk of damaging it, but the price of such conductors is higher.

Samsung Tab

Long outdated tablet slot for thirty contacts. Very wide and bulky. Visually resembles a cord from an old iPad, with which Koreans were probably inspired in their time. It’s easiest with him. Today, only the original or a copy can be found on sale. However, both options work.

Does cable length affect charging speed?

Yes, but in very different ways. For example, by extending the wire up to three meters without increasing the cross-section of the conductors inside, we can lose two-thirds of the energy. A good branded cord made according to the AWG standard practically does not lose up to two meters. We recommend buying them.

How to Disable Samsung Fast Charging

Lower the top curtain, click on the gears and go to the Settings section. Or go to Settings in the way that you think is more convenient.

In the settings, click on the “Optimization” menu item. 3. On the Optimization tab in the lower left corner, find the Battery icon. Push.

In the “Battery” section, click on the three dots in the upper right corner and open “Advanced settings”. 5. In additional settings, turn on or off the switch opposite to fast charging. Turned on. and the phone is charged using the fast charging technology Samsung Adaptive Fast Charging. Turned off. and your Samsung Galaxy is charging at normal speed.

Samsung Fast Charging: Quick Charge compatible

Samsung Adaptive Fast Charging is compatible with any charger that is Quick Charge certified. This means that you can safely charge your phone with an adapter that says Quick Charge 2.0 or Quick Charge 3.0.

It should be borne in mind that in any case, the phone will be charged using the Adaptive Fast Charging technology, which is based on QC 2.0. Current parameters (voltage, current, power) will change stepwise, not smoothly. Charging speed isn’t optimal, but Galaxy smartphones charge fast enough anyway.

Fix # 7: Keep the charging port dry

Like its predecessors, the S7 and S8, your S9’s charging port may not function properly if it is wet or has detectable humidity. Be sure to air dry your phone after using it near water or after using it near a humid environment. Avoid direct exposure to the port, such as hot air, as this could damage the seals around the port. Water usually evaporates on its own after a while, so be sure to shake your phone vigorously, wipe it down with a clean, soft cloth and let nature take care of the rest.

You will know if the system is picking up moisture because the moisture detected error will be displayed. However, no system is perfect, so there is always the possibility that your S9 may not alert you to the presence of liquid in the port, which could cause charging problems.

Fix # 4: Restart S9 to Safe Mode and Watch

Many problems in Android devices are caused by applications or their interference with the operating system. If your S9 appears to be experiencing poor charging performance after installing apps, this could be an indication that one of them is problematic or incompatible. Since the fast charging feature is controlled by Android, one of your apps has likely messed up your device’s power management functions. For verification, you want to put your device into safe mode. While your S9 is in Safe Mode, all third-party apps and services will not work. So, if your device charges fine (Adaptive Fast Charging works), you might assume that one of your apps should be preventing Adaptive Fast Charging from malfunctioning. In this case, the only permanent fix is ​​to identify this application and remove it from the system.

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To boot your S9 into Safe Mode, follow these steps:

  • Turn off the device.
  • Press and hold the Power key behind the screen with the model name appearing on the screen.
  • When Samsung appears on the screen, release the power button.
  • Immediately after releasing the power key, press and hold the volume down key.
  • Keep holding the Volume Down key until the device finishes restarting.
  • When Safe Mode appears in the lower left corner of the screen, release the Volume Down key.

How to Disable or Enable Fast Charging on Samsung Galaxy?

Now that you know why you should enable or disable fast charging on Samsung, let’s take a look at how you can do it. The good news is incredibly easy and you are just a few taps away from success.

I’m using the Galaxy S7 Edge for this tutorial, but the process is pretty much the same for all Galaxy devices. just keep in mind that if the device doesn‘t have wireless charging, the menu might look slightly different.

The first thing to do is go to the Settings menu by pulling down the notification bar and touching the cog icon in the upper right corner.

Scroll down the menu until you see Optimization. Click on it.

Now go to the bottom of this menu. Depending on the device, there are one or two options here: “Fast Charging” and “Fast Wireless Charging”. Toggling the slider to the right of any option enables / disables it.

It’s especially good that Samsung has separated these options so that you can choose to continue to charge quickly via the cable, but disable this feature for wireless charging, or vice versa. As you wish.

Fix # 8: Wipe your phone through a factory reset

A factory reset aims to fix any software-related issues in your S9. You only want to do this if all of our suggestions above don’t work at all. Here’s how:

  • Backing up data to internal memory. If you are logged into a Samsung account on the device, you have activated the anti-theft feature and you will need your Samsung credentials to complete a master reset.
  • Turn off the device.
  • Press and hold the volume up key and the Bixby key, then press and hold the power key.
  • When the green Android logo is displayed, release all keys (“Installing system update” will be displayed for 30-60 seconds before the Android system recovery menu items are displayed).
  • Press the volume down key several times to highlight “wipe data / factory reset”.
  • Press the power button to select.
  • Press the Volume Down key until “Yes. Delete All User Data” is highlighted.
  • Press the power button to select and run master reset.
  • Upon completion of the main reset, “Reboot system now” is highlighted.
  • Press the power key to restart the device.

Fix # 9: Contact Support Samsung

Be aware that fast charging failure can also be caused by bad hardware. If nothing has changed after you have exhausted all software solutions, you need to send the phone inside. Samsung must either repair or replace the phone, whichever is economically viable for them.

Fix # 10: Use a wireless charger

If you want to keep your S9 for a while before shipping, fast wireless charging is a good solution. While not as fast as fast cable charging, it is a good alternative to slow cable charging. Wireless charging cable has its uses, but it certainly won’t fix your problem forever.

Keep in mind that wireless fast charging generates more heat than cable fast charging, so it can shorten battery life faster than traditional cable charging. If you want to keep your S9 for at least a couple of years, we recommend you fix the fast charging cable.

How to disable Fast Charging on Samsung Galaxy (S7, S8, S9 and any other model)? Why you need to disable and enable fast charging?

Galaxy Phones: Fast Charge Not Working? Try These Steps

Everyone loves when their devices charge quickly, right? This is why so-called fast charging technology is so popular. at the moment, almost every phone manufacturer has its own version. However, in some cases, fast charging may not be the best solution.

Thankfully Samsung understands the need to disable this option on the fly, and there is a way to do it on Galaxy devices running Marshmallow (and other Android versions) such as S9, S8, S7 / Edge, S6 Edge, S6 and Note 5.

Why you need to disable Fast Charging on Samsung Galaxy?

But before we start, let’s take a closer look at the reasons, because I know a lot of people don’t understand: why would anyone want to disable fast charging on Samsung? There are several reasons, but the main one is heat, or rather, overheating. Fast charging uses a lot of current in a short time, so the device can easily overheat.

If it sits on a nightstand in a cool, ventilated area, this may not be a problem. But if the phone is on your lap while you are driving and the sun is falling on you, the device can get quite hot

On the other hand, devices like the Galaxy S7 / Edge with wireless charging have a fan in the charging cradle that can turn on when in use. Some people hear this faint noise and find it annoying, and disabling Fast Wireless Charging prevents it from occurring.

Samsung Galaxy fast charging stopped working

# GalaxyS9 is essentially just an improved Galaxy S8, and the same can be said for one of its greatest strengths. fast charging. With the S9, fast cable charging can hardly get any faster compared to the performance of the S8, so don’t worry too much. Given that both devices have the same 3500mAh battery capacity, we think the only reason the S9 has a slight performance advantage over the S8 is due to its more efficient chipset. It’s not much, and the average user won’t be able to tell the difference at all. Sad but true.

Either way, the S9 is never different from its predecessor, so it’s no surprise that it faces the same problem. unreliable fast charging functionality. In this troubleshooting article, we’ll discuss what you need to do when you realize your new S9 no longer charges as quickly as you expect.

Before we proceed, we want to remind you that if you are looking for a solution to your own #Android problem, you can contact us at the link provided at the bottom of this page. When describing your problem, please be as detailed as possible so that we can easily find a suitable solution. If you can, please include the exact error messages you receive to give us an idea of ​​where to start. If you’ve already taken some troubleshooting steps before emailing us, be sure to include them so we can skip them in our answers.

Fast charging Samsung Galaxy a50. how to turn on

Does Samsung a50 support fast charging? Yes, this feature is supported and easy to enable.

Thanks to it, the battery can be fully charged in less than an hour, but if you, for example, use a non-original charger, then this function on your Samsung Galaxy a50 may not work.

The downside is the shorter battery life. Therefore, they should only be used when you are really short on time.

Also, you should remember a few simple rules so that this process starts as quickly as possible (I will write about them below).

Important points when using wired charging on Samsung a50

If the screen in the phone is lit (launched), then the quick function will not occur, but only the usual.

Turning on offline mode (airplane mode) will charge your phone even faster.

Only in this mode, you will not receive SMS or calls, so remember to switch it after charging.

Also limit the use of applications, especially those that consume a lot of battery, such as games or video players.

Filling a phone battery via USB from a laptop or computer will not be fast and even slower than usual from a charger, this method will be much slower than charging from a wall charger.

In addition, the increasingly popular wireless charging is definitely slower than “off-the-wall” charging, although it is definitely very convenient.

How to enable fast wired charging on your Samsung Galaxy a50 phone

Fast charging, as the name suggests, allows us to charge the Galaxy a50 in a shorter time frame. This is useful when we are in a hurry and the charge percentage of our device is low.

To do this, the first step, like swarms of all changes, will need to enter the “Settings” system (click on the gear).

Then, in the second step, we find among the many sections the line “Device maintenance”.

In the third step, click the battery icon at the bottom of the screen (the first one in the list on the left).

In the fourth step, select the ellipsis located vertically in the upper right corner of the screen.

The fifth step, click on the inscription “Settings” (there is only one, so you don’t have to search.).

On the sixth, completing the power-on procedure, go down and opposite the “Fast Charge” line, if we want to use it, move the slider to the right.

NOTE: it is worth noting that this switch is not active when connecting the charger to the phone, disconnect it and then you can turn on.

How to disable fast wired charging on Samsung a50

As for how to turn it off, after the way to turn it on is described, I doubt that an instruction is also needed for this.

Just move the slider from right to left so that it changes from blue active to gray inactive. Success.

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