Mensagem original de: Minho ,
A lot of things can cause boot-looping. However a clue in your comments is that when everything did work fine (sort of) that the Home Button didn't work. You may have slightly damaged the Home Button when you replaced the screen and migrated the Home Button over. I would open up the phone and closely inspect with magnification the Home Button, especially the flex cable for any damage or tears. Follow this [guide|67489|guide]. I would also closely inspect the connectors for the screen assembly.