Hello,
Based on your description, please try to delete and recreate the PIN. Here are the specific steps:
If you can log in without a PIN (using a password).
Go to Settings > Accounts > Sign-in options.
Then delete and recreate the PIN.
You also mentioned that your keyboard is not working. If you are using a wired mouse/keyboard, try to unplug and replug them.
- Turn off your system.
- Then, unplug the power cord from the power source.
- After this, remove all external USB devices connected to the computer (such as mouse and keyboard cables) one by one.
- After removing all peripherals, plug in the power source and turn on the PC.
Best Regards,
Yanhong Liu
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