What should I do if the Redmi 8A keeps flashing back to black screen?

Mobile phones and tablets are flashed back to individual applications, it is recommended that you:

1.Back up your data.

Clear the data of the flashback program.

2.Uninstall the app and try to reinstall it. It is recommended that Xiaomi App Store.

4.At the beginning of the Android version upgrade, some apps may fail to adapt to the new Android version, resulting in app crashes. In this case, we recommend that you report to the app developer and wait for the app to update and adapt.

5.Make an effective backup of your phone data (cloud service recommended.)

Sync), and then reinstall the app after factory resetTry to get into the "Settings" mobile phone can press and hold the power + volume up button to enter the recovery mode when the phone is turned off, select "Clear Data" or connect Xiaomi Assistant to clear data;

6.If there are fixed recurrence conditions for the app crash, you can submit feedback and upload logs in Service & Feedback, which will help us make subsequent fixes, thank you for your support

If you encounter a black screen on your phone.

In the case, it is recommended that you:

1. Press and hold the power button for more than 10 seconds to try to force restart;

2. Determine whether the power is turned off due to too low power, if so, please use the original charger to charge for half an hour and then try to restart it;

3. If you are sure that the phone is powered, press and hold the volume up + power button at the same time in the shutdown state, or press and hold the volume down + power button at the same time to see if you can enter recovery mode and fastboot mode, if you can enter the above two modes, press and hold the power button for more than 10 seconds when you are in both modes to try to restart.

Find a customer service for a new one.

Mine is a flashback black screen and then mailed back for a new one (but the new one is not good, and it has only been broken again for more than two days, and the flash screen has evolved to a complete black screen that can't be opened.) The customer service agreed to change it to a new one) I'm now waiting for the third new machine, and I don't know how long the third one will last.

First, turn off your own computer first.

Second, use the corresponding flashing package to flash the machine.

Third, factory reset.

Yes. It would be better to turn off the power saving mode. The CPU does not work fully in power saving mode.

I've only been using my phone for a month, and it's good to restart, and that's how I'm done.

Hello, I'm glad to reply to you, the reasons and solutions for the Redmi 8A to suddenly turn on the black screen and can't turn on: 1. The software is incompatible, or the hardware of the mobile phone is caused. Clear the data, invalid is a hardware failure, need to be repaired; 2. In the shutdown state, press and hold the volume plus key and the shutdown button, and let go when the boot screen appears, and enter recovery; 3. Enter recovery, Chinese, clear data, empty all data; 4、The recovery mode refers to a mode that can modify the data or system inside the Android machine,In this mode, flash into the new Android system,Or backup or upgrade the existing system,You can also restore the factory settings here。

1. The mobile phone loses power.

Nowadays, smartphones are becoming more and more powerful and have more and more functions, resulting in more and more power consumption. If we are heavy mobile phone users, we must pay attention to the battery life of the mobile phone. If you accidentally forget to charge your phone, it will cause the phone to lose power and shut down on a black screen.

In the face of this situation, we have to quickly find a place where we can charge, plug in the data cable to charge the mobile phone for a period of time, and press the power button to turn it on.

2. The software is abnormal.

Nowadays, there is a lot of software installed on mobile phones. If the performance of the mobile phone is not particularly sufficient, and some software with poor compatibility and very large resource occupation is installed. This can easily make the phone system extremely busy, resulting in a black screen of the phone.

In the face of this situation, we can often press the power button for about 10 seconds, and the system will pop up the interface of restart and shutdown, and select Restart. After restarting, uninstall the problematic software in time.

3. Brushing the machine to turn bricks.

Flashing is risky, and you need to be cautious when changing ROMs. There are many enthusiasts who like to flash the machine and change the system style. But I often walk by the river, how can I not get my shoes wet.

If you accidentally flash the wrong ROM, or make a mistake in the middle of the process, it is likely to brick your phone. At this time, the phone is also black. In the face of this situation, the only thing we can do is to flash back the official original ROM by going to fastboot to flash the machine.

4. Hardware damage.

Hardware damage is the worst-case scenario. Display components such as screens, screen lines, and backlights will directly cause the phone to go black. Damage to core components such as motherboard dust, memory, and CPU will indirectly lead to a black screen of the phone.

In the face of this situation, we recommend that you still send it to a repair station for repair, unless you have strong experience in mobile phone repair. If the phone is only partially flooded, you can use a blow dryer to disassemble the phone and dry it, and there is still a chance to save it.

Summary. 1.Compatibility issues with mobile phone programs.

2.Operational errors. Sometimes the force of the swipe screen is a little stronger, and the hand will directly cause the phone to crash like a crash.

3.It is possible to be intercepted by the phone's security software, which can cause potential conflicts and crashes.

1.Compatibility issues with the mobile app Sakura. Chi Qing La 2

Operational errors. Sometimes the swiping force is a little greater, and the hand will directly cause the phone to crash like a crash. 3.

It is possible to be intercepted by the phone's security software, which can cause potential conflicts and crashes.

4. The memory of Huiyuan mobile phone is insufficient. You can use the system optimization software in the mobile phone to clean up the memory, so as to avoid the occurrence of flashback and black screen to the greatest extent.

The Redmi Note8 Pro can be turned on, but the screen is black. First of all, use the DC power meter to power on the motherboard of the mobile phone, see if the motherboard has leakage or short circuit after powering up, and the test result is normal. Press the power on button to turn on.

machine, look at the boot current, see from the ammeter, the current is not the current of normal boot, this mobile phone, it is necessary to use the battery to turn on, we use the battery to turn on instead, install the battery, press to turn on.

key, the phone vibrates, in order to determine whether the phone is really turned on, Xiaodou K repairs the charger plugged in, look at the charging ammeter, 5V, 13A, indicating that the phone has entered the fast charging mode, and the phone has been turned on.

machine. But the screen doesn't show up, the screen goes black.

For this kind of problem, we first need to measure the power supply of the display screen, the power supply of the positive and negative poles of the display seat, open the schematic diagram and position diagram, find the display base, find the power supply foot, and measure.

Measure the positive and negative power supply of VSP and VSN, and then find the capacitance on these two lines, find one for each line, and then buckle the display screen to measure, and the measurement result is no voltage.

After powering off the motherboard, the resistance of these two lines is measured again, and the resistance value is normal for the normal pen measurement, and the measurement of the exchange of the watch pen eggplant, the resistance value is normal. It's just that there is no voltage. Then, remove the display IC and prepare to replace it, after this is removed, clean up the pad, measure the resistance value of the pad to the ground, the measurement result, LCM EN1 has no resistance value at this slip point, OL is displayed, and the schematic diagram shows that this point is the CPU pass-through display.

Solution: Either fly from the CPU pad to the point corresponding to the IC. Either find the appropriate layer traces and fly the cables. GPIO LCM BIAS EN, which is a bias enable adjustable start-up.

Signal, gpio lcm bias en, hwen, this letter letter or sign, tube display, and tube backlight. A pull-up voltage can be borrowed from elsewhere as a startup signal to fly to the enable of the display IC.

Signal pin, after the boot test, the problem is solved, and the phone repair is completed.

The solution is as follows, 01

When you first open an app on your phone, you will immediately see a crash and a pop-up prompt.

To solve the flashback, first clean up the garbage in your phone, expand your phone's memory, and open the security center in your phone.

Once you are in the Security Center, tap on "Junk Cleaner" in the options to clean up your phone's junk data.

If the flashback caused by running memory is entered in the application permissions, and the mobile phone self-start software is set to avoid the flashback problem caused by the mobile phone's running memory is too small.

If the app data is too large, you can click Clear All to clear the app data that will crash in the phone settings, so that the restarted app will not crash.

None of the above methods can solve the flashback problem, so you can only process it by flashing your phone, and back up your phone data through a cloud service before flashing.

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.