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Hi,
As many of users faced problems with CLK line, for which solution was to remove CLK resistor between CPU and eMMC chip on target board, here is simple solution to overcome this problem:
For RIFF Box v1 (black box):
- Add pull up resistor from VCCQ (1.8v) to CLK line
Value starting from 4.7K (worked on qualcomm) down to 200 Ohms (for some MTK). Its better to start from 4.7K and test with decreasing value until successful connection is established.
Modification for v2 box requires connecting additional components, and full instructions with diagram will be posted soon.
If anyone needs urgent help, please ask on RIFF Box Viber community group.
As many of users faced problems with CLK line, for which solution was to remove CLK resistor between CPU and eMMC chip on target board, here is simple solution to overcome this problem:
For RIFF Box v1 (black box):
- Add pull up resistor from VCCQ (1.8v) to CLK line
Value starting from 4.7K (worked on qualcomm) down to 200 Ohms (for some MTK). Its better to start from 4.7K and test with decreasing value until successful connection is established.
Modification for v2 box requires connecting additional components, and full instructions with diagram will be posted soon.
If anyone needs urgent help, please ask on RIFF Box Viber community group.