Chosen Solution
Hello everyone, when I bought this used phone, it worked perfectly, zero defect (for several months until …) but all battery end of life: roll: and but the problems came after the battery change …. original. I was 2’ieme the battery … the problem is accentuated since yesterday ….. after that restoration of adjustment and there …. unpredictable reboot …. until a discharge Reboot during charging, reboot upon full discharge (battery is quickly discharged) with a heater to the limited use I use an app “battery life” who said: battery health: almost (almost) 100/1570 mAh:!: 0.00 volt voltage:!: I keep my battery before and experimented with ….. and they show exactly the same information? and the phone that acts as above then according to you …. _ iOS
- motherboard
- connector -other thank you in advance
To me it sounds like the phone has suffered water damage and more than likely the charging system is damaged. Its also possible that the power IC is bad. Another possibility is the Lightning connector is bad. The Lightning connector being bad is the cheapest and easiest fix, so you should probably start with that. While you have the phone apart, inspect the logic board for water damage. If none is found, try to boot the phone up. If the problem is fixed, great. If not, the repair will require micro soldering tools and skills. I’d bet money on water damage though.
Probably faulty battery. Replacing it should do the trick. You can buy a iFixit iPhone 5s battery from here: iPhone 5s Battery Make sure you do have adhesive so the battery doesn’t move around (a moving battery can cut the battery cable and/or volume button + power cable)