Chosen Solution

I had replaced my sister’s battery recently as it was starting to lose its charge very quickly. However, in a month or so, she comes back with a broken phone that does not turn on or is recognizable to itunes either. She told me she had used a portable fan that plugs into the bottom of the phone (a cheap chinese brand I think) which I speculated is what caused the damage to the phone. What do you guys think? Or, it’s just coincidence and happened to died right after. But anyways, so I thought it was the charging port that broke. So I replaced that, and still no luck. Also, tried hard resetting as well. If you guys could give any ideas on this, that’d be incredible! Thanks, Robert

You’re probably right. Cheap peripherals can draw too much current or cause voltage spikes that damage the charging circuit (Tristar). This will have to be repaired by a shop that does micro-soldering work.

Have you checked voltage on the battery? Maybe the new battery was junk and died already, especially if it was an ebay part. Use a multi meter on the outer pins of the battery connector. Report back what you find.

check the FPC socket, it is connection trouble