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After taking my iPad to a technician i was informed that the flash storage (located on the logic board) has failed. How can i fix this? Can the flash storage chip be replaced? Do i need to replace the whole logic board and if so how?
Technically speaking, the Flash storage can be replaced and it can also be upgraded. That said, this is not a trivial undertaking and there are a few caveats to consider. A repair shop that specializes in micro-soldering repairs and has access to a NAND programmer can do this. Depending on the original error (was it Error 4013?), the NAND may just need to be repaired by the programmer. Regardless, all of these options require removing the NAND IC, programming it (or repairing it) and then re-soldering it on the board.
The flash chip is not really replaceable by its self. You’ll need to replace the full logic board. review this IFIXIT guide: iPad Air Wi-Fi Logic Board Replacement Update (11/16/2017) Review the IFIXIT teardown here: iPad Air LTE Teardown. The logic board is basically the same as your WiFi only model. Jump down to Step17 to see all the guts and gore of the logic board ;-} As for getting the part IFIXIT gets them from time to time but quickly are sold out so you could put in your request to be notified here: iPad Air Wi-Fi Logic Board. Just make sure you select the correct one (memory size-wise). Here’s one available now: iPad Air Logic Board, 64GB, WiFi, A1474. They also have other sizes.
