not powering on after screen replacement, feels warm to the touch
I replace the screen and now it won't power up or turn on. Find My Phone says it is offline. The top by the camera feels warm.
You may simply have a defective replacement screen. I would try to re-install the original (presumably cracked) screen to see if the phone works normally. You can also try disconnecting the FCAM assembly to see if that causes the problem. Ultimately, you may have caused some issues on the logic board, as Daniel suggests. Let us know what you find.