Solved! Xhorse MQB Adapter Read Cluster “Try Frequency failed (00)”

One customer gave feedback about Xhorse MQB Adapter:

VVDI PROG with MQB48 Adapter won’t read the cluster, software always gives “Try Frequency failed (00)” error whether in normal options or test function 15.

But MCU cable in package worked well, only adapter got a problem.

Here is the Solution:

Remove cluster, only connect MQB adapter, read data, and test voltage of pin FLMD0

If voltage is 3.3V, device works well, connect cluster, check connection, and read data again

If voltage is not 3.3V, VVDI PROG is damaged, send back to dealers for repair

Our customer raises another approach:

Supply 3.3v to FMLDO on adapter.

All good read and write, no problem.

Done! Hope this could help!

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