What should I do if my Tianyu phone suddenly crashes and can t turn on?

Tianyu's mobile phone can't be turned 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.

Try a force restart.

If it can't be turned on, it can only be taken to the service center for repair, if it can be turned on, it is recommended to check the crash fault as follows:

System upgrades, software upgrades, whether it will freeze.

If it is still the same, clean up the system junk of the mobile phone, check and kill the virus, and if it is still restored, the factory settings of the mobile phone will be restored.

If it is still the same, flash it again.

If so, most of them are motherboard problems.

Hello, it is recommended that you reinstall the battery or charge it again to try.

Because there are many reasons why the mobile phone does not turn on, it is recommended that you send it to the local authorized maintenance outlets, and professional engineers will help you check it to avoid delaying your use.

Tianyu authorized maintenance network address inquiry.

1 Take off the board and turn it on again.

2 Plug in the charger. Check if there is any response on the phone.

3 Look at the absence of the warranty period, you can do after-sales and return to the factory for repair.

4 The mobile phone is not within the warranty period, so estimate whether it is worth repairing again, and go to the roadside mobile phone store to repair it.

If you find mine helpful, thank you.

Hello !

According to your description, Tianyu mobile phone always stops at the boot screen when it is turned on.

It is recommended to try restarting your phone first.

If the problem persists, we recommend that you try the following steps:

When the device is fully charged, after backing up data, press and hold the [Power Button] and [Volume +] buttons for 10 seconds with the device off (off).

After entering recovery mode, move the cursor with [Volume+], Volume-] (see figure below).

Operate 2-wipes again

Select Wipe Data Factory Reset > yes, home] to confirm.

Select wipe cache partition > yes , home] to confirm.

Select reboot system now > yes , home] to confirm.

After doing this, reboot completes the repair of the system.

Hope this helps you!!

If there is a problem with the boot file of the system boot, back up the important data and try flashing it. Or press the power button + volume down button for a few seconds to enter recovery mode, double clear. If there is important information in the phone, don't double clear it, because the data will be lost.

How to Operate:1When something goes wrong with our phone, we can fix it by resetting it; If the phone can also switch interfaces, you can repair the phone directly on the phone, and we can fix the phone on the computer when the phone is always on;

2.Install a mobile assistant on the computer, which can manage our mobile phone;

3.Connect your phone to the computer with a data cable;

4.Open the mobile assistant and connect to the mobile phone;

5.Since we want to fix the phone, which may lead to data loss, we need to back up the important data first;

6.After the backup is done, you can repair your phone directly.

First try to turn off the phone, if the phone can't shut down properly, pull out the battery to force it to shut down, and finally turn it back on.

Press and hold first"Power on button"When the word >"waiting" appears in the tool, pull the battery, and then press and hold the power button and the volume button down to plug in the cable, and the tool will start to brush. After brushing, pull out the cord and pull out the battery, and it will be normal to turn it back on.