iPhone Cellular antenna signal strength
I went on Amazon and got a lightning port flex subassembly.
The microphone which was bad, now works, but the cellular antenna reception performance is now way worse. I connected the round rf port connector on the lightning flex, but only cellular strength is affected negatively after the repair. When I'm outside, I get a weak signal but only strong when I drive by a cell antenna.
Following the ifixit, on step 65 of your iPhone 8, lighting connector swap instructions, I DID NOT scour any of the silver glue residue from the back case/cover where the lightning flex adheres to. Do you think this might act as a rf cellular signal insulator? Or is it a bad Amazon lightning flex sub assembly?