Since my previous post was closed without answering my question on how to reset the proximity sensor, I created a new thread.
I was forced to answer the question myself. Same as downloading the update to android 12 and following this forum all the time to be up to date with information when we stop being testers of this phone. If I hadn't checked the information on this forum, I still wouldn't know about the update to 12 and randup problem.
So far, I have been buying cheaper phones from other companies and there were not as many problems with them as with Zenfone 8 (600 Euro!!!)
To the point. If we want to check the proximity sensor (or other sensors) we have to open the calculator and enter in it:
,12345+ then press =
Then we look for our sensor or another topic and select a single test. We follow the instructions.
So far, after taking this test (sensor is working OK), I have stopped pressing everything on the screen with my cheek during phone calls.
Best regards to (not)helpful admins.