I don't know if it can be fixed by some software that can rebuild partition?Īnd yes, fortunately the seller has agreed to send me a replacement one so hopefully I will receive one that will not die on me as well but having said that even though I have used Rufus countless number of times in the past to create bootable drives, I will be using an external hard drive where ever possible from now on. I don't know if this was caused by the software or faulty flash drive. It appears that the error occurred when Rufus was trying to convert MBR partition on the flash drive to GPT.
Chipsbank format tool windows#
It is detected by windows explorer as well as diskpart etc but has no partition. Please have a look at that and do not ask me to try the suggestions given there as I have tried all of those and nothing has worked. USB totally damaged after used with Rufus Not all chip-off cases are quite this complex, but we dedicate considerable time and effort to studying these advanced cases to give clients (and ourselves) the best possible chance at a successful recovery.So this is almost identical situation to the post below. In cases where thumb drive repair isn’t possible, advanced chip-off flash drive recovery like this is often necessary. It looked like the block had been erased.Īrmed with this new and important information, I was able to manually reconstruct the missing root table, allowing me to use standard recovery tools to assemble the logical image and completely recover the customer’s data. It turned out that the patient drive was missing this root table entirely. This controller uses a “root table” that points to other tables that actually point to the logical data blocks. From this I was able to locate the translation tables and determine their format. We had a working CBM2091 device in our inventory, so I wrote a test pattern to it and dumped the memory chip. So of course I decided to decipher the translation scheme. I made an attempt using PC-3000’s “virtual drive map” tool that can assemble a logical image using FAT32 metadata and known file format info found through raw recovery, but this was not very successful because of the unrecognized file type.Īt this point it was either give up or decipher the translation scheme myself to determine why neither of the tools’ translators worked. Some of the files spanned data block boundaries, so completely assembling all the files was virtually impossible.
Raw recovery wasn’t a good option because the customer was looking for a non-standard file type that none of our raw recovery tools recognized. PC-3000 and Flash Extractor have translators for CBM2091, but both of them failed to assemble a logical image from the dump. In this case, I read the dump and got a good read with only 12 KB of uncorrectable data. These tables are stored in their own blocks somewhere on the memory chip. It instead uses translation tables (two levels of table, actually) to keep track of the logical data blocks and what order they’re in. It’s as simple as can be, but it unfortunately doesn’t use the common block number translation scheme, which is easier to deal with generally.
The data is stored unscrambled and there are no transformations. The controller on the device was a Chipsbank CBM2091.
Once Clint had determined that the device was not physically repairable, it came to me to dump the memory chip to attempt a logical recovery. We recently completed a flash recovery case where the drive was not repairable, and a chip-off recovery was not, at first, successful.
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