Riffbox rj45 emmc isp error

[brunotec88888888]

I am facing an error when i try connecting my riffbox v1 with the rj45 isp emmc adapter.
With the USB Power connected it shows the following error:

Connecting to the SD/eMMC Card...ERROR
Set I/O Voltage reads as 2.80V, SD_CLK Frequency is 960 KHz

Connecting to the SD/eMMC Card Failed (ERR[0071], POS[0001])


Without the usb power the error code is:

Connecting to the SD/eMMC Card...ERROR
Set I/O Voltage reads as 2.80V, SD_CLK Frequency is 960 KHz

Connecting to the SD/eMMC Card Failed (ERR[0075]; POS[000B])

The error is happening with any phone that i try to connect with isp. The jtag interface works normally.

The jtag manager version is 1.89 and the box firmware is 1.54.

Thanks.

[mtk6572s4clone]

Hi,
If you have already tried Chip-off and it worked, try removing the clk resistor in isp and using usb cable (mobile to PC) for power instead vcc and vccq.