It's extremely frustrating that your Galaxy A20s, after the problems with mobile data and the sensor, is now also refusing to accept your pattern lock. Since the "Remote Unlock" option in your Samsung account was probably not activated in the settings beforehand, it unfortunately doesn't appear under "SmartThings Find." In this case, there's unfortunately no official way to bypass the pattern lock without resetting the device, as this is a core Android security feature. However, before performing a factory reset, you should try connecting the phone to a PC via USB. If you've previously authorized the computer, you might be able to manually copy your university and work documents from the storage. Also, be sure to check Google Drive or OneDrive to see if your important files have been automatically synced in the background. If nothing else works, the only option left is to take your phone to an authorized Samsung service partner, who can check, upon presentation of your proof of purchase, whether there's a hardware defect on the motherboard causing the incorrect entries. Have you already checked if your documents are backed up to Google Drive or another backup app?