Chosen Solution

Hello, i have an xs max dropped in water and they put it on charge, the phone was dead , so i teared it down and cleaned it( seperated the layers) the phone turned on again but i have two issues: _ the front camera and the face ID not working, checked everything all the software solutions and checked the flex and the plug, checked the voltage on plugs eeverything working normally, do you think it is a lack in the layers assembling? _Screen rotation worked on the first day but then it stopped, i tried also all software options, also changed the screen still the same ( knowing that the compass is not working but the maps are working normally. Please advice, thank you.

It will not be a connection problem between the two boards your problems are on the top layer. I have never had a rotation problem on the XS Max so I do not know if it could affect the front camera. I would fix the rotation problem first and see if that brings back the camera. I would start by checking and maybe replacing U3600.