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SD Card data recovery

Started 2 months ago | Discussions thread
Joep van Steen
Joep van Steen Contributing Member • Posts: 575
Re: SD Card data recovery

Maxmolly7 wrote:

Not sure what recovery tool helps when the card is no longer recognized?

Please let us know if you found a solution.

Try different reader, clean contacts with eraser and some IPA. other than that it will require specialist tools and equipment to dump the contents of the card using NAND protocol.

On rare occasion card may ID using special equipment without accessing NAND directly (on left in picture), this would be least amount of work. iI that does not work we need drastic measures.

If card is model with NAND chips soldered on, chips are removed and dumped. Once NAND is dumped, dump needs to be processed: We need to determine layout, scrambler and ECC correct (in the right side of picture). This medium amount of work and many labs have standard rate for this.

If SD card is a monolith (below), dumping NAND may be somewhat more involved, specially when pinout to which we solder wires to attach to reader is unknown. Many labs have variable rate for this as a lot of work may be needed to even determine if the data can be recovered.

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Joep

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