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Second generation of CDMA iPad 2 with 16, 32, or 64 GB and Dual Core A5 Processor. Model Number A1397. Repair is detailed and requires heat and prying.

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Transfer Data From Dead Logic Board?

Hi all,

This is my first question, so please bear with me as I figure this out.

I have a iPad 2 CDMA (64GB) that had the battery swell up and explode (no one was injured other then the iPad itself), and it killed the screen, case, and the logic board. I bought the same model on eBay to try and swap the parts, and after I tested individual components with the new ones, I know that the logic board is dead, although I did get a relevant current draw when the power button is pressed. .

Since I know the logic board is dead, I used the iPad 2 Teardown Guide to locate the NAND flash chips, and attempt to transfer them to the new logic board. The only issue is that I ripped a few PCB pads during the de-soldering process of the original chip on the new logic board.

Is it possible to fix the ripped traces, or do I need another new logic board? Also, is this idea to recover the data even feasible? Since I haven't touched the original logic board with the data yet, those chips are still soldered on, so I obviously need a few tips on removing those as well.

Thanks in advance.

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It's deceased, I wouldn't waste your time.

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It's not possible to recover data this way by replacing just the NAND chips. The data on them are encrypted with keys only known to the CPU, you need to migrate the CPU onto a new board as well.

Fixing ripped pads under the NAND chips or on the board is possible.

https://www.bilibili.com/video/BV1Ci4y1R...

https://www.bilibili.com/video/BV1vW411C...

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Great, Thanks! One more thing though. Do you have any tips with the hot air station so this doesn’t happen again? My previous settings were 400C at 50% blower speed. That seemed to be the minimum to get the chip to come off, so I must not be doing something correctly.

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I think I got it, but now the iPad is boot-looping. Any suggestions? Thanks.

Edit: I just left the iPad sitting there for an hour or so, and it finally booted up. Thanks for the help!

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