Solution:

1. Check whether the tablet battery has power. You can connect the original charger to charge for about 1 hour, then try to turn it on;

2. Check whether the tablet is in sleep mode. You can short-press the power button to see if the screen displays;

3. Check whether the tablet is in a frozen state. You can connect the original charger and then use a fine needle to poke the reset button to see if the screen displays;

4. It may be caused by firmware damage. Connect the tablet to the computer to see if the computer can recognize it. If it can, please download the firmware of the corresponding model and re-flash it according to the flashing tutorial in the firmware package. If even the computer cannot recognize it, there is no way to handle it yourself. Please contact the place where you purchased the machine for repair;

5. You can restore the system to its initial state through the "Backup and Reset" function under "Settings". However, restoring the factory settings will delete all user-installed programs and data, so please back up important data before use and ensure that the battery power is above 50%.