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So I bought a water damaged iphone 7 plus that’s been turned off for 3 months, i found a shorted capacitor right under the ear piece speaker ( only sign of water damage in the entire iPhone) so I removed said capacitor and the iPhone booted normally, I restored it through iTunes to get the previous owners data off and it all went well, signed in with my iCloud account and started testing the iPhone and then it started shutting off after like 4 minutes of use ( I charged the battery using a lithium ion battery charger up to 10% to make sure the iPhone turned on and at this point had the iPhone plugged in this whole time but the battery went from 10 to 5) so I thought I should let the battery go through a few cycles to start working normally again but it’s been 24hrs and the phone is still at 5% but it went to 4% then 3% then back up to 5% so I really don’t know whats the problem I tried the hard reset but no luck someone please help me im desperate
· Did you replace the battery after you purchased it? · How many amps is it drawing when charging? · What does 3uTools say about the battery and its health? You will need to rule out parts. Try another battery and dock connector. If it is indeed fake charging I would replace Tristar.