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Repair information and guides for the iPhone 6S released by Apple on September 25, 2015. Models: A1688, A1633

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Panic Logs on iPhone 6s

Hello!

Recently my phone would randomly restarts even when i am not using it but it doesn't happen quite often it only happened after i replaced the battery i even went back to the repair shop that replaced it and changed the battery that i got from them after i told them about the issue so after couple of days my phone restarted again once so i thought i would go to the repair shop to check the phone completely not just the battery but wanted to share the logs here in case someone can identify the issue if it's related to the battery or the board itself.

Panic-base log:

https://pastebin.com/Pf4RJZ2Q

Panic-full 21th Sep log:

https://pastebin.com/jhjvUVSL

Panic-full 25th Sep log:

https://pastebin.com/thmDtaaz

Panic-full 7th Oct log:

https://pastebin.com/PDcq58iM

Note: I used both iDeviceLogAnalyzer-public & Panicfull, iDevice couldn't Identify the issue as for Panicfull it gave the same issue which is (Battery Identification Lines (SWI / I2C SMC)) but for the panic-base it only reported (Software) as you know it requires a subscription to show more issues or give extra services.

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So this could be a battery issue, but it could also be a board issue. The fact that it started after a battery replacement is definitely a bit suspicious to me.

But the panic specifically calls out Tristar. Which is actually the chip in the board more responsible for USB peripherals. It identifies the charger and it has direct ties to battery charging (it has lines of communication with Tigris, the charging IC).

This could have been a preexisting issue, or something introduced during the repair (or because of the battery). Bt I would say the battery is a good start.

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