What should I do if I can t turn on the machine? Can you elaborate a little bit? Thank you

Dear users, hello:

Reasons and solutions for mobile phones that have power but can't turn on:

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.

China Telecom provides the best quality network communication services, old friends for new phones, Internet age cash, 100 Gigabit broadband free experience, ultra-clear TV ITV, telecom activities can be directly queried through the business hall.

Cause: There was a boot error on your computer.

1. After the computer starts, hold down the "ESC" key, enter the startup menue, and select "F9 Boot Device Option" to enter (different models of computer FX are different, you only need to select the one with Boot Device Option).

2. Select the last 250w and press enter.

3. Select Run Windowspe Ramos (new model) and press Enter.

4. Enter the desktop of the PE system and click "Windows Boot Boot Repair".

5. Select "C drive" and press enter.

6. Select "Advanced" and press Enter.

7. Then select and click "Write Master Bootloader Bootloader".

8. Then select "4."Rewrite the main bootloader MBR".

9. At this time, the writing is successful, click "Return", and the computer can be restarted.

10. Then it can be turned on normally.

There are many reasons why you can't turn on the machine, you need to check them one by one, you can charge it for half an hour first, try to see if it can be turned on, if it can't be turned on, it may be a hardware or software problem, and you need to take it to a repair shop to test.

What should I do if my desktop suddenly won't turn on?

1. It may be caused by insufficient power, you can connect the charger, charge it continuously for 20 minutes, and then turn it on.

2. It may be caused by system abnormality, you can press the power button and the volume reduction button at the same time in the shutdown state to enter recovery mode, click Restart, and try to turn on the computer.

3. If the temperature of the mobile phone is too high, the battery will be turned off for self-protection, and the temperature of the mobile phone will be lowered before turning on the device to check.

4. Any operation of battery feeding or system abnormality cannot be turned on, and you need to go to the corresponding customer service center to let the engineer help deal with it.

Flash it should work.

Brush the machine directly, you're soft and bricky.

You see if the phone battery is broken, or if it's because you got root access.

id thinks.

Marry the chicken with the chicken crystal drop glue.

End Sue Christmas with a mobile phone activity.

Okay, okay, okay, okay.

Flash the machine If you can't brush it, go to the store and let them help you brush it for free, oh haha, thank you.

This is most likely a problem with the system, directly brush a system, see if it can be solved, but the phone may not be backed up.

The oppo phone can't be turned on, you can press and hold the power button and the volume plus button at the same time to force restart the phone, and it can return to normal after restarting.

If it still stays on the boot screen after restarting, you can try to restore the phone to factory settings to solve it, cut out the phone battery to power off and turn it off, then install the battery, press and hold the volume down and power keys at the same time to enter the clear mode, and then select Chinese Simplified, clear all data, and then restart the phone, you can return to normal.

If you still can't enter the system after restarting after clearing all data, you can connect to the computer to flash the phone, and flash the phone into a new system.

In addition, problems with the hardware of the mobile phone will also lead to staying in the boot interface and not being able to enter the system, such as motherboard chip failure, processor, memory failure, etc., please bring the purchase invoice, warranty card and mobile phone to the nearest customer service center for testing and processing.

Press and hold the volume down button and then press the power button.

What should I do if my desktop suddenly won't turn on?

What else can I do if I get a new one?

If you can't turn it on, go to repair your phone.

In fact, there are many reasons why it can't be turned on, such as no power and memory sticks, which need to be checked one by one, if there are no problems, you need to take it to the repair shop to check.

This is the computer in the (detailed) self-test (interface). This is usually caused by a change in the computer's hardware (adding a hard disk) or an illegal shutdown (sudden power failure). It should be enough to wait for it to self-test.

What should I do if my desktop suddenly won't turn on?