1. Check whether the indicator light in the upper left corner is normal. If the indicator light cannot be displayed, it may be a problem with the motherboard.
2. If the indicator light is normal, please check the external monitor to see if it can be used normally. If the external monitor can be used normally, it may be that the cable connecting the screen is loose. Please contact customer support for further help.
3. If the external monitor cannot be used, it may be a problem with the motherboard. Please contact customer support for further communication.

1.Please try to restart and see if it can be restored.
2. If the problem still cannot be solved by restarting, please press F9 to refresh the system. The specific steps are as follows:
Method 1:
a. Press F9 immediately after the LOGO is displayed at startup;
b. Click "Troubleshoot";
c. Click "Reset this PC";
d. Click "Keep my files";
e. Click "Local reinstall";
f. Click "Reset".

Method 2: (Note: Method 2 will format the hard disk, please save the data first)
a. Press F9 immediately after the LOGO is displayed at startup;
b. Click "Troubleshoot";
c. Click "OnekeyRecovery";
d. Press "Y" or "1" to proceed to the next step.

If the problem still cannot be solved, please contact customer support for further help.

There may be a problem with the driver. Please check and update the relevant driver. You can visit our website: https://auusda.store/pages/driver-download-1, find the model corresponding to your device, and follow the operation guide to download and install the driver. See if the problem is solved. If you have other questions, please feel free to contact our after-sales support.