Flash/MicroSD/CF In general Question
February 7th, 2019, 4:58
Dear Experts... (The experts in NAND recoveries)
Sometimes we receive DEFECTED MicroSD, Flashes and CF memories,
The Question here for you guys is this: Why Windows (for example) reads it as 30mb?
Why 30mb?, why not for example 100 or anything else?... (i have few samples of those)
Anyone knows here?
thank you
Sometimes we receive DEFECTED MicroSD, Flashes and CF memories,
The Question here for you guys is this: Why Windows (for example) reads it as 30mb?
Why 30mb?, why not for example 100 or anything else?... (i have few samples of those)
Anyone knows here?
thank you
Re: Flash/MicroSD/CF In general Question
February 7th, 2019, 9:16
I always presumed it was the size of the controller, but maybe not. That is a good question.
Re: Flash/MicroSD/CF In general Question
February 7th, 2019, 10:30
ddrecovery wrote:I always presumed it was the size of the controller, but maybe not. That is a good question.
I thought about that, but really 30mb or 100mb of data(instructions) inside the controller is really Huge amount of data (for single flash/mem)
i really cannot find a Tech. Doc. talking about this thats why posted it here...
Maybe one of those knows Sasha/Sergey/Michal i don`t know
still waiting for others opinion but Thx for bringing this here..
Re: Flash/MicroSD/CF In general Question
February 7th, 2019, 18:37
Had Kingston MicroSD show 31Mb. I have repartitioned some before with this issue and they appeared to work ok after... but I would never use a MicroSD for anything after any time of issue like this. I would hazard a guess that part of the partition table has been corrupted, probably due to degrading NAND, and windows interprets wrong. being SD, it could be a secure digital partition is showing while the normal user partition is gone. Never seen this on anything other than MicroSD cards.
Re: Flash/MicroSD/CF In general Question
February 7th, 2019, 19:05
HaQue wrote:Had Kingston MicroSD show 31Mb. I have repartitioned some before with this issue and they appeared to work ok after... but I would never use a MicroSD for anything after any time of issue like this. I would hazard a guess that part of the partition table has been corrupted, probably due to degrading NAND, and windows interprets wrong. being SD, it could be a secure digital partition is showing while the normal user partition is gone. Never seen this on anything other than MicroSD cards.
I have also seen quite a few standard flash drives with 30mb(ish). When looking at the data in hex it is either all 00 00 or FF FF.
Re: Flash/MicroSD/CF In general Question
February 24th, 2019, 11:09
And sometimes it is 2TB...on average non-fake 8GB MSD
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