Ever wondered how to find out if the memory stick you bought for your device is a genuine Sandisk/Samsung/... ?
Method 1: (easy)
Just install the app SD Insight
After opening the app the app must _NOT_ show INVALID. If it does ... hmmm ... well ... contact the seller to investigate more
Method 2:(difficult)
You need a linux machine.
go to /sys/block/device
search for a file using "find" command called "cid"
cat the file. A bunch of 000 in the front means it may not be a genuine one.
Usually for Sandisk
The top left most bits must not be '000'.
Example my Sandisk shows
$ cat /sys/class/block/mmcblk0/device/cid
Also found
https://wiki.linaro.org/WorkingGroups/KernelArchived/Projects/FlashCardSurvey?action=show&redirect=WorkingGroups%2FKernel%2FProjects%2FFlashCardSurvey
This gives a list of CID of manufacturers
Method 1: (easy)
Just install the app SD Insight
After opening the app the app must _NOT_ show INVALID. If it does ... hmmm ... well ... contact the seller to investigate more
Method 2:(difficult)
You need a linux machine.
go to /sys/block/device
search for a file using "find" command called "cid"
cat the file. A bunch of 000 in the front means it may not be a genuine one.
Usually for Sandisk
The top left most bits must not be '000'.
Example my Sandisk shows
$ cat /sys/class/block/mmcblk0/device/cid
Also found
https://wiki.linaro.org/WorkingGroups/KernelArchived/Projects/FlashCardSurvey?action=show&redirect=WorkingGroups%2FKernel%2FProjects%2FFlashCardSurvey
This gives a list of CID of manufacturers
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