You might want to read this thread:
https://www.mobileread.com/forums/sh...le+screen+chip
If your new screen has a different chip from the original screen, you can still use it. First, don't remove the battery when replacing the screen. If you do have to restart and the new screen won't show images, etc. You can plug in the old broken screen and restart the Kindle, then unplug and replug the new screen. You can do this without removing the screen. I have one like that, and I haven't had to restart it in a couple of years, but I still keep the broken screen for the inevitable time I need to restart. The thread will expalin it better than I have.