I have one S 8.4 with a bad screen and good motherboard and another with a good screen and bad motherboard. Can I just put the good halves together? Thanks!
In theory, yes. But make sure you know what you're doing and that, indeed, the display is the only thing that's damaged on the first tablet and the second one's good. Also, these tablets aren't the best for repairability, so again, make sure you KNOW what you're doing before attempting any soldering.