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NAND Read Retry for Data Recovery

In addition to many of the common methods to improve NAND reliability and performance (eg: wear leveling, error correction code, etc) another common method we’re seeing is the inclusion of Read Retry (Voltage Sensitivity) registers.  These registers appear to change…

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Lexar S50 (AU6998AN) Data Recovery

Here we have an 8GB Lexar S50 Flash Drive. These came in a flip top package usually sold as a pair of two or three with different colors. It uses an Alcor Micro AU6998AN Controller and came in 8, 16,…

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SanDisk SDCZ60 (82-00515-4) Broken Connector

Here we have a SanDisk 16GB SDCZ60 Series Cruzer Glide Flash Drive with a broken connector that came in with a broken connector. This is a common failure on this generation of flash drives. After frequent use the metal support…

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SDCZ48-016GB Disconnects

Here we have a SanDisk Ultra USB 3.0 16GB  Flash Drive that connects briefly to the computer and then abruptly disconnects when trying to access files. The flash drive uses a SanDisk 20-82-00543 controller which is actually a re-badged Phison…

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Reballing LGA-152 NAND Chips

Often, we have to reball LGA-152 NAND chips to swap them from one PCB to another. For example, from a bad circuit board to a donor circuit board. This is an example reballing a Micron NW657 NAND Chip with 0.40mm…

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Repair Broken SanDisk Cruzer Connectors

If you don’t know how to fix it yourself you can send the flash drive in for data recovery. We offer competitive pricing and FREE shipping anywhere within the United States. Simply fill out a work order and mail the…

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Hidden Hynix DDR Enable Command

While sniffing traffic on a Hynix NAND chip (H27Q1T08EM6R ID: ad 3c 19 a3) we found a hidden command to change the read mode from NON-DDR to DDR which effectively doubles the read throughput of the chip. Cmd 0xEF Addr…

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