[chbot] Unlocking a microSDHC or SDXC card

[Trevor Wignall]

Hi Synco
Yes, they are micro SD cards, and I am using an adaptor but I have tried
two different adaptors with the same results. I have moved the write
protect (or "lock") slider to the unlocked position, and for some attempts
this has given a difference in the error message (i.e. it doesn't even make
an attempt when write protected).
The cards worked for a year or more, then each suddenly stopped working in
the phone, and the phone no longer offered it. A new card then worked
perfectly in the phone, so it looks like a software write protect on the
card, or something else corrupted.
I don't have any Linux computers other than my Raspberry Pi's, but I will
try to bring the cards (and adaptors) to the next meeting (in one week's
time I believe).
Thanks
Trevor

On Mon, Jan 14, 2019 at 2:46 PM Synco Reynders <synco.reynders at gmail.com>
wrote:

> Hi Trevor,
>   Very unusual that you have two cards that don't work. I assume they are
> microSD size, and you are using the same holder? -since I've found often
> the holder can have issues.
> Also make sure you have the 'write protect' slider on the card /
> card-holder pushed forward (towards the contacts).
> Many linux commands to test SD cards, like use:
> lsusb / lsblk to see if the card has been detected
> then fdisk, gparted, ... for formatting.
> Bring them allong to next meeting and sure I or someone will sort it out,
> /s
>
> On Mon, 14 Jan 2019 at 14:21, Trevor Wignall <zl3adz at gmail.com> wrote:
>
>> Does anyone have any tips or special means to unlock a micro SD memory
>> card which has been corrupted by a Samsung Android phone? I have tried a
>> number of methods including trying to reformat them in a camera, using a
>> Hard Disk Low Level Formatting Tool, using AOMEI Partition Assistant, and
>> using SD Card Formatter. Nothing seems to be able to change the card's
>> contents. I have two cards, one of which (64GB SDXC card) is readable, even
>> after all of the reformatting attempts. The other (32GB SDHC card) is more
>> totally bricked. I am not worried about the contents of these cards, just
>> after a way to allow these cards to be reused.
>> Any help welcome.
>> Thanks
>> Trevor
>>
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>
>
> --
> Synco Reynders
>   m: +64 21 1825332
>   e: synco.reynders at gmail.com
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