Android Phone black screen can't start and what's the reason to solve

1. Mobile phone power is not able to boot

Excessive discharge of the mobile phone, resulting in the inability to boot, this charge is charged for one night caused.

Solving method

Excessive discharge of cell phone battery will cause cell phone battery to feign death. It takes half an hour to one hours of activation time. Let's put it on for a while.

2. The Boot card recovery interface does not start the search

Because the misuse of the mobile phone into the recovery mode, resulting in the phone can not reboot can not quit?

Solving method

If it is caused by misoperation into the recovery mode, you can try long press the power button 10 seconds to restart the phone to try; If the problem persists, it is possible that the volume key circuit is abnormal, it is recommended to carry the purchase invoices and warranty cards to the Customer service center to detect processing.

3. The boot card in the interface can not boot

In the use of smart card in the Boot animation interface, it is recommended to try long press the power button 12 seconds to force the shutdown, and then restart the phone; If you do not solve your problem, please bring the purchase invoices, warranty cards and mobile phones to the nearest customer service center detection processing.

Solving method

It is recommended that the following optimizations be made to the handset if the reboot is normal.

1, uninstall the recently installed software, excluding software and systems incompatible situation;

2, system anomaly or root cause system instability, brush machine repair system as soon as possible;

3, battery loss of electricity, it is recommended not to completely exhaust the electricity, less than 20% timely charging.

4. Mobile phone boot prompt "into the RF test"

Generally if the mobile phone prompts to enter the RF test mode, it is mostly the headphone hole into foreign bodies or circuit board water short circuit.

Solving method

This is really nothing to solve the ~ peace of mind to the service center bar.

Suddenly black screen

1, in your play, or did not play, a moment on the crash or direct black screen, next, you can no longer boot, complete black screen, plug in charger, charging LED will not light;

2, connect the computer, the computer is only a hint, there is something to connect the voice, the phone is still black screen.

Workaround:

1, put your cell phone battery out, there are memory cards, phone cards are taken out;

2, plug into the computer USB connection, all kinds of long press boot button to see if the boot! Here you have to be very patient;

3, if the boot, you turn off the machine is still found to be the same old look can not open, continue to force the opening of mobile phones;

4, in the system related to the computer restart software, directly into the REC, if not, can only unplug the charging line, and then hold down the volume key and the power button and then install the battery can enter the REC;

5, if the attempt to Shuang Qing, found that rec has been damaged. cannot be performed. This also reveals that there is indeed a problem with the internal boot layer of the mobile phone.

6, Brush Rec, unplug the battery, and then press the volume key with the hand and power button, and then plug in the battery, into the bootloader mode, brush into the new G-Large rec;

7, brush the machine on the OK!