The main screen of the mobile phone program has been deleted, and what should I do if I can t turn o

For example, if you uninstall the system program of your Android phone, which causes the phone to fail to turn on, you can try to flash the phone to repair the system.

After entering, try Shuangqing first and select WIPE

data/factory

reset to erase all data, that is, to restore factory settings, then press the power button to confirm, and then select yes

delete

alldata, yes, you can clear all data.

Select Wipe

cachepartition, then press the power button to confirm, and then select yes

wipecache.

Select install

zipfrom

sdcard, select choose

zipfrom

The phone will automatically execute the flashing procedure, and the phone will automatically enter the system when the flashing is completed.

Hello! Brushed through the system.。。 Or the easiest way to do it is to connect to your computer. Then use 91 Assistant or Wandoupod to install a third-party desktop.

When in doubt, please ask.

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

7. If it is a copycat mobile phone, then I estimate that it can't be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear if you drop it, the chip burns may be because you charge it for too long, burn the chip, if the battery has electricity, that is these aspects, if it is a brand-name mobile phone, such as Nokia, Motorola. These situations are rare, unless it is artificial, if it is a brand-name smartphone, and it is not used improperly, it is a software problem, it may be a system crash, or because of the mobile phone poisoning caused by software damage, generally this can only go to the maintenance office, however, I think the biggest possibility is caused by static electricity, it is recommended that you do not open the blind repair, or go to the maintenance office!

Choose one of the following methods:

3、Laqiao is on the official **on**Huawei c8500 software of Sakura Huawei,There are some in it,Then you can re-flash the machine。 Very easy thing. (Flashing the machine is to restore the machine to the original production settings.) Hehehehehe. ）

ps: If you want to delete the desktop:

Remember to install other desktop software, such as LauncherPro, use LauncherPro as the default desktop, and then delete unlimited desktops.

Press the boot button,Directly connect to the computer and then install a desktop software,If it doesn't work, flash the machine,Or enter recover,Restore factory settings,(But some mobile phones are deleted is deleted to restore factory settings, and the desktop startup software is gone)

1.Go to the official website or forum of the mobile phone to find the card swipe package of the machine, and then put it in the memory card to complete the card swiping, because the card swiping methods of different models are different, there is no detailed tutorial here, users can go directly to the official website or forum to find.

2.Bring the purchase invoice, three-pack card and other documents to the local mobile phone brand corresponding after-sales department to complete the system brushing, and users can find the after-sales address through the official website of the mobile phone brand.

The software that comes with the system is generally deleted without a lifting method, and the deletion may cause the mobile phone to be unable to be used normally. You try:

1.Please remove the battery Tong Xiaosui for 5 minutes, put it in and connect the computer and mobile phone with a data cable for 30 minutes, and try to turn on again.

2.If it still can't turn on, please try to back up your data and try to enter recovery mode (press and hold the volume up + power on button) or fastboot mode (press and hold the volume down + power on button + meter key when you turn off the computer) to flash the computer.