Compass gone in Zenfone 8 after replacement of display - where is it located

[Nodedive]

Hi there. I do have spares, due to destruction of phones and displays, on a regular basis. I just need to know where it is, or in which part it is built into. Before I start disassembling again and trying, every time with the risk of making it worse involved. And, by the way, anyone know if it is possible to buy the back cover somewhere?