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Hi! Shuangqing give it a try.
Shuangqing tutorial, which is used to clear the lock screen password, and remove multiple software flashback problems caused by flashing.
If you can, use the backup software that comes with your phone to back up.
Shuangqing needs to enter the REC mode of the mobile phone, and there are two ways to enter.
1. Click System Update, click the menu key to select Restart to Recovery, click OK, and the phone will reboot into Recovery mode.
2. In the shutdown state (buckle battery shutdown), press and hold the power button and the volume down button at the same time, and release the button after lighting up the screen.
Then you'll see three options.
recovery
mode means to enter REC mode.
fastboot
mode means to enter the line brush mode.
normaboot
It means restart.
At this time, the volume down button is the selection key, the volume up button is the OK key, and the power button is useless.
Press the volume down button to move the cursor to recovery
mode, press the volume up button again to confirm, and wait for a few moments to appear.
A green android robot lying on the ground, finally press the power button to enter.
At this time, the volume up button is the confirmation key, and the volume down button can be selected to start double clearing.
3.Select Wipe
data/factory
reset】yes
4.Select Wipe
cachepartition】yes
5. Wait for the progress bar to end, press Back, and select [RebootSystem].
now], the phone starts to restart automatically.
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The black screen of the mobile phone is one of the faults that are often encountered in the maintenance of mobile phones, and the black screen can be divided into two types: one is the black screen in use, and the other is the black screen in standby.
Most of the black screens in use are caused by their own third-party software, and this situation rarely occurs with the machine. It can also be subdivided into two kinds: one is that there is a problem with the software itself, the software itself is unstable, or it does not match the mobile phone system, etc., this is easy to solve, just uninstall it; The second is the conflict between the software and the software, which is a little more troublesome to solve, and requires a software to install and uninstall the software in the experiment.
If you find it, uninstall it, and the problem will basically be solved.
It is recommended not to install too much useless chicken rib software. Although buying a smartphone is to play the machine. But some software that you don't use at all is a waste.
As for the black screen in standby, most of the straight board machines have a power-saving circuit design: the mobile phone will automatically turn off the screen if it can't detect the key trigger signal for a long time, that is, standby, when you need to use the mobile phone, a button will activate the power-saving circuit, and then the screen lights up!
The reason for the black screen is often reflected by the delay of the screen triggering circuit. That is to say, the mobile phone system has issued a command to light up the screen, but because the circuit is delayed, it is not sent successfully, and the screen is not lit successfully, but the mobile phone system thinks it has been lit, so it causes a black screen.
The phone screen is black, don't be in a hurry to restore it first. Use a friend's mobile phone to call your own **, if you can get through, you can also answer normally. That's basically the problem.
There is no need to panic when a black screen appears, and there is no need to pick the battery immediately. You can leave the phone for about 3 minutes without pressing any keys on the phone, and then press the button again to activate the screen. After many years of practice.
It can generally be returned to normal immediately! In this way, it basically does not have a big impact on the use.
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System issues. Redmi has unlocked the phone or installed some unofficially certified software, which may lead to incompatibility of the mobile phone system, and incompatible systems or software will directly cause the phone to reboot.
Pros of Redmi:
1. Low configuration is high.
From the very beginning of the positioning, the Redmi series is the product positioning of the volume. Redmi has always adhered to the cost-effective positioning,**low,The main price is below 1200 yuan。 Redmi's goal is to adhere to the ultimate cost performance, high quality, and accelerate internationalization.
The most significant feature of Redmi is that it is cheap. Whoa.
2. The battery has a large power.
Another advantage of Redmi is the high battery. Due to the fast pace of life, modern people have particularly large power requirements for smartphones, and the battery capacity of Redmi phones is generally 4000 mAh, which improves the battery life of Redmi phones well, allowing users to use them for a long time without worrying about the phone running out of power soon.
3. It is suitable for the elderly.
Although there are many smartphones on the market, there are not many mobile phones specially designed for the elderly, Redmi is one of them, its simple mode font is very large, and the sound can also be turned up very high, which is suitable for some middle-aged and elderly people with visual and hearing impairments to use indiscriminately. <>
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What you are asking is the reason for the inexplicable black screen of your Redmi phone? Here's why:
1. Battery drain: Check whether the battery of the mobile phone has been completely depleted, connect the mobile phone charging spike belt and wait for a period of time, and turn it back on.
2. Hardware failure: If the hardware failure of the mobile phone causes a black screen, you can press and hold the power button and the volume plus button (or the volume down button) of the Nazhi mobile phone for a few seconds at the same time to see if you can force restart the phone.
3. Software conflict: Some application or system errors cause the phone to go black, you can press and hold the phone's power button and volume down button for a few seconds at the same time in the black screen state to enter the phone's recovery mode, and choose to restart or clear the cache.
1. Caused by incompatibility between software and system. There are still many cases in this situation, if the system is not properly optimized or some bugs in the apk of the game itself are likely to crash, and the solution can only wait for the update of the system or the update of the software apk. >>>More
When the computer is turned on: Go to "System Update" and click "...Select "Reboot to Recovery Mode" and click "Reboot Now" to enter Recovery mode. >>>More
Here's how to do it:1. First of all, root your Redmi phone with Root Master. After the root is successful, all the permissions of the mobile phone system are obtained, which lays the foundation for removing and uninstalling the Redmi software. >>>More
software, full scan).
2。The computer system has stubborn viruses and Trojan horses or worms interfere with, or the system files have been lost (360 system emergency. >>>More
It is recommended that you back up important data first.
Then perform the line brush to complete the package (it is recommended to brush to the latest development version) and then use it to see if there is still the problem described. >>>More