Antwort auf „After swapping digitizer, device won't boot”How can I tell if I have the wrong part? I am having the same problem with my Samsung Galaxy Light SGH-T399 phone. I ordered replacement digitizer from Amazon and installed it with no problems, but just getting to Logo screen and freezes. The phone WAS working properly with the cracked screen, but unfortunately, I tore the ribbon when removing it from the phone so I cannot check to see if it would still work (but I suspect it would). Is the number printed under the ribbon a model number? because they are different. Thanks for your time.