Chosen Solution

The screen before was completely smashed but the phone still functioned - I could receive calls etc. It turned the torch on itself, which I couldn’t turn off as the screen too damaged to function properly, and so the battery drained. I just replaced the back casing (original was bent so cracked a new screen already) and the LCD screen etc using youtube tutorials. Now when I plug the phone in to charge it makes a repeated charge noise (or vibrate if in silent mode) and gets hot. I unplugged it last night as I just needed to get to bed after hours of fixing the thing and this morning the battery was completely flat again. Connected to iTunes it shows the phone is ’there’ with all its ‘stuff’ and is charging. Ive already tried checking the LCD connectors, rechecking the battery connectors etc and I can’t see if they are damaged. My question is is this likely to just be a new battery needed? One of the internal logic board connectors (the long 2 cables) looks like it might be loose, would this contribute to it not turning on? Or could the replacement screen be faulty? Or do I need to take the whole thing apart again and check the power button…. pretty sure this all went in fine but not sure where to go from here… and have spent too much time and money to give up now! Many thanks

The long two cables are just antenna cables, if you’re talking about the ones that connect to four points, if you take them both as one cable. Replacement screen could be faulty. Power button wouldn’t cause this issue of it crashing itself (it’s most likely crashing when you hear the charging sound repeatedly). Had this issue once myself with a replacement screen. Putting another one on fixed it.

You might have a crack in the circuit board, if you take it apart be sure to look over all parts to see if there is any other damage that you might not have seen previously. Make sure you take precautions against static discharge if you do. Good Luck!