I just had an iPhone XR that came in for water damage data recovery.
After clearing some shorted VDD MAIN caps, it booted, but restarted on me every 3 min
1st panic log said i2c0
2nd and 3rd said Missing Sensors TP1A
I was testing the board with all known good parts. And XR doesn't require any specific parts to be plugged in to prevent restarting
I took a closer look at the board & found corrosion all over the flash/strobe ICs, U4100 and U4120, which U4100 having the most corrosion under it.
Removed both ICs and ugly caps. Cleaned it. and tested again.
And that solved it! I got the iTunes Backup completed.
I know i've seen others post about TP1A but not sure if they ever solved it. So if you ever get TP1A, it might be the flash related circuit.
If you have a Seek Thermal Cam, you're missing out if you don't have a VCC Seek Stand: https://www.vccboardrepairs.com/buy-seek-stand
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It can take us a while to build these out sometimes, so they're sometimes out of stock for a while, but we're working towards always having inventory ready to build more as they sell out.
This stand makes using a thermal cam so easy. So much better than any other thermal solution on the market.
It allows you to get real close up (using my Macro Lens), and easily find where the short is coming from.
Plus it's hard free, so you can have your hands free to try to boot the device from DCPS, while having an image that is in focus & not moving around.
You can even record a video through the app, while you inject voltage into the short, so you can go back & see exactly which component was it that was heating up.
Save yourself lots of time by getting a Seek Cam, Stand & Macro Lens! ...
Anyone who is doing game console repairs, knows how many screws you need to remove to access the motherboard.
Especially the PS5, with the 5,000 screws or so.
If you don't already have an electric screwdriver, GET ONE ASAP.
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It's rechargeable through micro USB and allows you to easily swap the tips out. You can also fold it to be straight or L shape.
Let me know below if you are already using an electric screwdriver 👇👇
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I have decoded the iPhone 16 panic log codes! I wrote a repair wiki article about it & shared lots of details about it.
Make sure to go read up on it. It's slightly different than previous models:
https://repair.wiki/w/How_To_Fix_an_iPhone_16_That_Randomly_Restarts
