iPhone 6 Plus bootloop after water damage
I just got a iPhone 6 Plus from a customer. The phone was dropped in a coffee cup and would not power on at all when they brought it to me.
I desoldered the two shields near the bottom of the motherboard (the liquid didn't get past the bottom of the motherboard, all the upper part of the board has no trace of liquid spill) and no oxydation was found under the shields. There was some on the charging port connector which I cleaned.
I plugged the motherboard on a new battery and charging port and plugged a lightning cable and the phone is doing bootloops.
Do you have any clue what could be causing this problem?
Is this a good question?