hello there ,

I have replaced communication board , caz the trace of board has been died , so no longer to reconnect the battry...


any way in new communication board I have also droped the battery ,so the wires has been disconnected..


but I have tried to re-solder it and I have soldered it ... after that the iphone wont turn on !

I disconnect the battry again and I have seen that its worked when I connect it to pc , but I cant update with out battry caz as you know after copying the firmware..

I have tested the battry with volt metter it gives me with red/black or red/white 3.72 voltes

so whatz the problem

thanks

you may have short circuited when you were soldering. There are many things that could have happened. It could be the battery that was damaged, the comm board again, of the motherboard which actually got burnt out...That red wire is a dangerous one, can do damage if not handled properly...