Black screen? Self starting? Can t turn it on? What s the situation?

1. First of all, conduct a self-test on your phone. Nowadays, most brand mobile phones have a deep sleep mode, once you enter this mode, it will often cause the phone to have a black screen and cannot be turned on. The solution is very simple, press the power button of the phone for more than ten seconds to see if you can force restart.

Or press and hold the volume up button and the power off button at the same time, and feel the phone vibrate and force restart. Generally speaking, this step can solve the problem of black screen on most mobile phones. 2. Secondly, the battery is dead or malfunctioning.

Solving this problem is as simple as connecting the charger for a while and then trying to turn it on. You can also directly buckle the battery and charge it with a universal charger to see if the connector of the battery is loose. If it can be turned on after charging, it means that the battery is just dead.

If it still doesn't work, you can try a different battery. Check if the battery is faulty and no longer has power. 3. In addition, a violent fall on the mobile phone may also cause the mobile phone to have a black screen.

This is a troublesome situation, and it is likely that the hardware of the phone is malfunctioning, so it will have to be repaired. 4、

1. When the phone is completely turned off, press and hold the volume down and power button at the same time, select Factory Reset, and then restart the phone.

2. If there is still a problem with the phone, you can flash it.

Reasons for the black screen.

1. Memory problems. A mobile phone may crash when 80% of the memory it can drive is occupied.

2. Contact problems. This is that the contact of the mobile phone screen has been loosened.

3. Battery problems. The phone's battery is aging and the voltage is insufficient.

4. Conflict issues. Application Software Conflicts.

5. Flashing problems. The flashing is incomplete, which leads to a common black screen when using it in the future.

If the temperature is too high and it can't withstand it, it will protect itself, and the problem reflected is automatic shutdown. This is a protective measure to avoid burning the CPU due to excessive temperatures.

This should be a malfunction of the mobile phone, or go to the store to find the master to see.

It should be caused by insufficient memory, like this situation to flash the machine, generally between 30 and 40 flashing fees.

There are generally three phenomena that cause computer crashes: first: the computer power supply is insufficient, the power supply voltage is unstable, or the power supply is broken.

Third: the system is broken, and the system needs to be reinstalled to solve the problem.

Fourth: The cause of the problem is the oxidation of the gold finger of the memory module or graphics card or the poor contact of the slot, which causes the computer to fail to boot up. Solution:

You can turn off the power first, open the computer case, dial out the memory module, use the eraser to wipe the part of the gold finger (that is, the place where there is a copper sheet) back and forth a few times, and then insert a memory slot back in, and you're good to go. If you don't turn on the computer after doing this, you have to check the graphics card, explain that it is a problem with the graphics card, and you can do it in the same way as above.

Fifth: Check to see if the cable between your computer and the monitor is loose.

Press and hold the power button at the same time as the up and down keys to reset your phone.

The screen is completely black when powered on or the display shows no signal input and the display automatically sleeps, see if the CPU fan rotates normally, if even the CPU fan won't turn, there is a high possibility of power supply problems or motherboard problems.

1. Unplug the peripherals and start the computer, and re-plug the display data cable and various power cables.

2. There is a discrete graphics card display data cable to be connected to the discrete graphics card.

3. Clean up the dust of the motherboard and CPU fan when you boot it.

4. Check the power supply of the motherboard, whether the CPU power supply is plugged in. Reseat the hard drive data cable and power cable, and check the power supply of the graphics card with a separate graphics card.

5. Buckle the motherboard battery discharge to solve the problem of static electricity.

6. Reseat the memory, use the eraser to erase the gold finger of the memory graphics card7. Unplug the independent graphics card display and connect it directly to the integrated graphics card of the motherboard to eliminate the graphics card problem.

If the mouse and keyboard can be lit, but the monitor is not lit, check whether the cable is plugged in, if it is plugged in or not lit, it is estimated that the system crashes or the memory module is not plugged in,