Why is the Samsung phone black screen, its keys are on, what to do?

Mobile phone black screen, splash screen, flower screen, white screen, recommended:

1.Click the back button to see if you can exit the software. If you can, exit and re-enter.

2.If you can't quit the software, it is recommended to restart the machine and try: press and hold the power button and the down volume button at the same time for more than 7 seconds to restart the device;

4.If it comes with system software, it is recommended to update the system version of the mobile phone to try: please go to Settings - About the phone (about the device) - Software update (system update) - Update (please back up the data in the device before upgrading).

If the problem persists, it is recommended to bring the purchase invoice, repair card and mobile phone to the local mobile phone purchase office for repair or spend money nearby to repair it.

Summary. If your Samsung computer has a black screen, you can try to press the power button to turn it off, and then press the power button to turn it on. The screen is still black, you can try pressing the key combinations such as fn+f4, fn+f5, fn+f6, fn+f7 on the keyboard, these keys are usually shortcuts to control the brightness of the computer screen, which may help you get your screen back on.

If none of the above works, you can try restarting your computer and entering safe mode to see if you can restore the bright screen in safe mode. Check if your computer is connected to an external monitor, and if so, switch back to your computer screen.

If your Samsung computer has a black screen, you can try to press the power button to turn it off, and then press the power button to turn it on. The screen is still black, you can try to press the combination of fn+f4, fn+f5, fn+f6, fn+f7 and other combinations on the keyboard, these keys are usually shortcuts to control the brightness of the electric key virtual brain screen, which may help you restore the bright screen. If none of the above works, you can try restarting your computer and entering safe mode to see if you can restore the bright screen in safe mode.

Check whether the computer is connected to an external monitor, and if so, you can switch the stool and stare back at the computer screen.

The black screen issue can be caused by a variety of reasons such as computer hardware failure, system crash, driver issues, and many more. If none of the above methods work, it is recommended that you contact Samsung customer service or professional maintenance personnel to repair the situation. In short, there are many ways to solve the black screen problem, and you need to choose and try it according to the specific situation.

Hope it helps!

Power off and restart (press and hold the power button and the down volume button at the same time for more than 7 seconds).

If the problem still exists, it is recommended that you bring the purchase invoice and the three-guarantee certificate to send the mobile phone to your nearest after-sales service center for testing.

Phone Black Screen (System Problem) Solution Details:

When the phone enters recovery mode, it should be in the shutdown state, and then press and hold the power button + volume up button + home button at the same time, and wait for the phone to appear in the boot prompt to let go;

After the boot animation is displayed, the Android robot appears, and at this time we just need to wait for a while;

After entering the recovery mode, you will find that the Android robot has fallen to the ground, although it can't get up, but the functions it has, can already be seen at a glance;

reboot system now - Reboot the system.

Wipe Date Factory Reset – Wipe data and restore to factory settings.

wipe cache partition - clears cache data.

Next is Shuangqing data and cache,If you want to flash the machine,Shuangqing is necessary,Volume up and volume down is selected,Power button is confirmed,Select wipe date factory reset,Click the power button to confirm that enter,There will be confirmation whether it is cleared,Confirm it directly。

After clearing, it will automatically return to the interface that just entered the recovery, and then select wipe cache partition, you don't need to confirm to clear the cache, you can wait for a while;

Select Reboot System Now and restart the phone system and it should be able to boot up.

The phone shows a black screen for many reasons, system issues, software conflicts. If the screen is damaged, it will be illuminated into a black screen, and Samsung mobile phones generally recommend the following steps to troubleshoot and deal with it:

1. Press and hold the power button and the down volume button at the same time for more than 7 seconds, and try to turn the device on and off again.

2. Connect the charger to see if there is a charging display, if there is a charging prompt, you can charge it for a while and then turn it back on.

3. If you can operate the phone after restarting or charging, uninstall the third-party plug-in program that was operated before the black screen.

4. Back up your phone data (**book, short message, multi** file, etc.), and restore factory settings.

If the problem persists, please bring the purchase invoice, repair card and machine to the service center, and the engineer will check the machine and deal with it.

If the phone screen is black, it is recommended that you:

1.Press and hold the power button (some machines need to press and hold the power button and the volume down button at the same time for more than 7 seconds) to restart the machine.

2.Connect the charger to see if there is a charging display;

If it is invalid, please bring the purchase invoice, repair card and machine to the Samsung service center, and a professional after-sales engineer will help you test it.

Samsung mobile phone is a smart phone developed by Samsung Group, and Samsung mobile phones really began to be popular all over the world from the A series. The A series was originally a series of folding mobile phones, and the earliest Samsung SGH-A188 (white shape) and SGH-A288 (internal and external dual screens) are classics. The Galaxy series is arguably the most successful series of Samsung phones to date.

In the entire Galaxy series, Samsung has adopted Android's smartphone operating system.

If your Samsung phone can't enter the system when it is turned on, please try it:

1.Restart the machine: Press the power button + down volume button at the same time for 7-15 seconds to restart; In the early days, the machine pressed and held the power button for more than 7-10 seconds to restart the device.

2.If you still can't use the machine, it may be a problem with the equipment system or hardware, for further confirmation, it is recommended that you bring the purchase invoice and three guarantees certificate to send the machine to the local mobile phone after-sales service center for testing.

It's the phone that is dead, press and hold the [Volume Down Button] + [Home Button] + [Power Button] and hold it for about 5s or so, and the phone will automatically force restart.

How to Reduce Phone Freezes:

Do not open several programs at the same time when using a smartphone, generally less than 3 is appropriate, and large programs can only run one at a time. Try to exit the program by relying on the menu to exit in turn, and do not use the AFK key directly. In that case, the program is still running in the background, and if you open a larger program, it will easily freeze.

Try not to install software from unknown sources.

Pay attention to the protection of the memory card, the memory card is damaged and the data stored in the card is incorrect, which will cause the failure of cyclic boot or failure to boot. If you encounter this kind of failure, you should first try to format the memory card, if not, you can only replace the memory card.

Manage the apps on your phone and don't delete files that you think are unnecessary. Some of the crash failures are caused precisely due to the user deleting the system files by mistake.

Smartphones, like computers, will become disordered after a long period of use, which will slow down the operation of the whole machine and cause it to crash easily. The solution to this situation on a computer is to reinstall the system, and the smartphone is to hardformat. After hard formatting, all the data on the phone will be erased and the file system will be restored to the factory state, so we need to make a backup of the relevant data before hard formatting.

The black screen phenomenon after unlocking the phone is mostly caused by third-party software conflicts.

1. It is recommended to turn off the phone, quickly press and hold the menu button in the lower left corner of the phone when rebooting until the word "safe mode" is displayed at the bottom left of the phone screen, then release it, and uninstall the self-installed application after entering the safe mode.

2. If the problem still exists, it is recommended to bring the purchase invoice, three guarantees voucher and mobile phone to the local Samsung service center for testing by engineers.

There are many reasons for the black screen, system issues, software conflicts. If the screen is damaged, it will be illuminated as a black screen.

We recommend that you try the following:

One. If it's a black screen all the time:

Press the power button and the down volume button at the same time for more than 7 seconds to restart the attempt. If the fault persists, it is recommended to send the phone to the nearest Samsung service center for testing.

Two. If it is sometimes a black screen:

1.It is recommended to uninstall the third-party plug-in program that operated before the black screen.

2.Back up your phone's data (**book, SMS, multi** files, etc.), and restore factory settings (Settings - Privacy Reset - Factory Reset).

If the problem persists, you still need to bring the purchase invoice, warranty card and machine to the Samsung service center, and the engineer will inspect the machine and deal with it.