Hi, Jae.V!
Thanks for reaching out to Microsoft Community and posting your concerns. We are sorry to learn you still have issues on your 2nd Type Cover for your Surface Pro 7. Thanks for taking the time to let us know about this and allowing us to help you. From what you mentioned, it looks like you did most troubleshooting steps so far. If I may ask, have you tried the Type Cover on another Surface Pro? Also, can you check Surface UEFI?
- Select Start > Settings > Update & security > Recovery.
- Under Advanced startup, select Restart Now.
- Under Choose an option, select Troubleshoot > Advanced Options > UEFI Firmware Settings, and then select Restart.
Once inside the Surface UEFI page, go to Date and timethen press on the blank field in line with New date and time.
Kindly check if you can type inside the blank field and move your mouse.
That way, we can check if this is a hardware issue or not.
Let me know how it goes.
Kind regards,
Janette_Z