This iPad 7 came in for Bootlooping/Error 9 after battery replacement.
Error 9 is really common after battery replacement. The theory is that a fully dead battery will kill the NAND when it's stuck bootlooping for a long time.
Although I can't say for sure that's why. But almost every Error 9 I see, has a history of a battery replacement right before it happened.
Error 9 requires a NAND replacement. In this case, the NAND was fully dead. I could not read it on my P14 Pro. (My JC P7 wasn't working at all either).
But I was able to at least get the original Serial Number when it was stuck in Recovery Mode.
I replaced the NAND with a 32GB NAND from an iPhone 7. I wrote a generic SYSCFG from an iPad 6 (2018) due to the P14 Pro software not having iPad 7 for some reasons. And I made sure to edit the junk SN it created & write the original SN, even though I didn't have the original WiFi/BT Address.
I then soldered the NAND onto the board, restored it & it was successfully booting, but No Touch & would not activate (due to wrong WiFi/BT Address).
I then used Purple Mode to "Query original factory code" which gave me the correct SN, WiFi, BT for this device within seconds. Maybe like 30 sec or so.
I also noticed in Purple Mode, the P14 Pro software had iPad 7 generic SYSCFG option. So I also clicked "Write standard bottom layer", then edit in the correct SN, Wifi/BT Address, also edited the Model from "CH/A" to "LL/A" for USA region. Wrote all that in and then restored the iPad one more time.
Then the iPad had touch & was able to activate. Unfortunately, I am currently waiting to hear from the customer for their iCloud info. But it should be fully functional now.
This was the first time ever I've seen a bad SYSCFG cause no touch. I was certain it was actually a CPU issue, as I had tested another known good digitizer & these iPad 7 are notorious for touch problems due to CPU.
I hope you found this helpful!
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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
Injured Gadgets just got these back in stock, so get them while you can!
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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This 15 Pro came in for data recovery. It came in smashed badly.
I split the sandwich & tested in the jig with a known good bottom board & all known good parts
But yet, it still restarted.
That means it had a board level issue causing it.
I found the panic log said the sensor array code was 0x80000
This was not a previously documented error code, so I had nothing to go by
Based on the backstory, I started checking everything on the board. Diode mode all the common connectors. But nothing.
Then I remembers the 14 Pros require the Gyro to work. Sure enough, rotation was not working
I found the Gyro IC & noticed it was loose
I pulled & it had some ripped pads.
Rebuilt the pads, placed the IC back & it worked! I backed up the data.
Since the Repair Wiki is not longer updateable, I will be posting the new panic logs I find on my Panic Log Cheat Sheet, only available to active members
You can access my Panic Log Cheat Sheet here:
https://www.vccboardrepairs.com/cheat-sheet
...
Crazy recovery job I wrapped up this week on an iPhone 14 Pro Max that was mailed in all the way from Nebraska.
Customer told me the phone had been run over multiple times, and honestly, after opening it up, I thought this was going to end up being a no-fix. The phone was absolutely destroyed. The housing was twisted, the board was severely bent, and the damage near the NAND had me expecting the worst.
First thing I did was remove the board and inspect everything under the microscope. The bend near the NAND and CPU area was pretty extreme, which is usually a very bad sign on these newer iPhones. In many cases, once the board bends this badly, the CPU or NAND can crack internally and the data is gone for good.
Because the board was bent so severely, I couldn’t safely use my normal board heater setup to separate the sandwich board. I had to carefully use hot air instead and take my time through the entire process. Definitely one of those jobs where one wrong move could destroy the last chance at ...
