No display replacements are responding to touch.
I’m fixing a friend’s Nexus 7 2nd Generation tablet, and I’m currently 3 displays down. Each time I install the display (and frame), turn the tablet on, and it won’t respond to touch at all. The first replacement responded for about 10 minutes before it no longer worked. After this I’ve ordered another 2 from different sellers (trying to get them from different locations too) and both have not responded to touch at all.
I’ve installed the old cracked screen back on multiple times and that works perfectly fine so I know that it’s not my method of installing them, nor an issue with the tablet hardware.
Am I just being scammed buying these screens that will never work, or is there some sort of other issue which could be fixable?