JZ050

sherusta1981

does not see the UFI Box flash drive 8PA97 JZ050
Failed to initialize eMMC (return code: 17, error CMD: timeout) !!!
CMD1 error, cmd response: 0x0, card status: 255 (the card is in an unknown state)
SEND_OP_COND command failed.
--- Check eMMC contacts and connection ---
--- Try to select the correct VCC / VCCQ manually ---
--- Try to reduce the clock frequency ---
--- Try using a 1-bit connection ---
Check the connection, make sure the eMMC is inserted correctly.

Shahim

I have same problem, what can we should do?

madgoeslim

Shahim Hi, Please check the connection, if problem remain, chip maybe damage.

Elias

I wrote about some time ago. UFI doesn't work well with redmi 6/6a micron emmc, same thing happen for those which has SKhynix emmc, only Samsung emmc works fine, if gonna work with SKhynix set manually vcc at 2.8v and vccq at 1.8 frequency not higher than 12MHz.

madgoeslim

Elias Will try to get this ic to make sure, some micron use master and slave for vccq connection, it might be the problem chip can't read by general adapter.