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Hello I bought a water damaged iPhone 5c to fix. i have taken this thing apart en dried everything. i found out that the battery was dead. so i took a replacement battery and the phone just turns on. everything works fine, except charging. if you put the charger in it wont do anything. if i take out the battery and put charger in, i will measure 0 volts on the battery plug. but if i do this on my working 5c i find 4,88 v coming out of the port to charge the battery. so my question is what chips can be broken and replaced to fix this? Update (09/22/2017)
picture of the jumper, connect the red dots
You say you dried it but did you properly decontaminate it? With water damage, you have to decontaminate the logic board before doing anything else, otherwise there will be latent issues down the road. Decontamination routine: Open your phone and remove the logic board (follow this guide)Inspect the logic board, especially around the connectors and look for corrosion.Inspect both sides of the board. Unfortunately, 80% of the board is covered in shields. That’s usually where the damage is occurring.Put your board in a container with >90% isopropyl alcohol and let it sit for a while.Use a soft brush, like a toothbrush and lightly brush away any corrosion you see.Rinse in alcohol and repeat.Let it air dry for a day.Re-assemble and hope for the best. Once that is done, then start the troubleshooting. Measure your main voltage rails and look for shorts. You’re problem is most likely related to the charging circuit (Tristar/Tigris). Once you have more info, come back and let us know and we can give you more guidance.
