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-   -   Question easy jtag after buy (https://forum.gsmhosting.com/vbb/f672/question-easy-jtag-after-buy-2628886/)

marky1991 06-24-2019 13:14

Question easy jtag after buy
 
Hello, I have seen that there is an option to change the CID number, my question is, would you be able to change said CID in SD / micro SD cards?

layder 06-24-2019 18:32

Most of new SD card doesn't allow CID change.
Some Old EVO Samsung SD is allow

umar342 06-24-2019 18:44

Quote:

Originally Posted by layder (Post 13708412)
Most of new SD card doesn't allow CID change.
Some Old EVO Samsung SD is allow

sir what is ssd 5.1 solid state drives

marky1991 06-24-2019 20:33

Quote:

Originally Posted by layder (Post 13708412)
Most of new SD card doesn't allow CID change.
Some Old EVO Samsung SD is allow


But with the SPI function it would not be possible to change the CID to the new cards? Being the samsung evo was a good idea, then with the easy jtag it is not possible to enter the vendor mode and change it?

layder 06-24-2019 20:37

Samsung is removed change CID command from eMMC 5.1 and SD cards

marky1991 06-24-2019 20:48

And from other brands than samsung? For example kinsgton, or Chinese brands?

It occurred to me that it could be done (get the firmware or ROM of the card that has the vulnerability) and flash it on new cards that do not have that vulnerability. Could it be done?

layder 06-24-2019 23:09

Quote:

Originally Posted by marky1991 (Post 13708513)
And from other brands than samsung? For example kinsgton, or Chinese brands?

It occurred to me that it could be done (get the firmware or ROM of the card that has the vulnerability) and flash it on new cards that do not have that vulnerability. Could it be done?

change CID - not JEDEC command. We can't have info about undocumented eMMC commands for any brands

marky1991 06-25-2019 14:00

And for smi chips? I read any about chorus software, but i think is necesary special hardware...


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