Xhorse VVDI Prog “Partition information error, please select the partition size manually”(Solved)

How to solve Xhorse VVDI Prog “Partition information error, please select the partition size manually” (shown as following image).

Engineer replied:

Partitions generally do not need to be set, after you click on “YES”, there should be a partition, all of which are given to DFLASH.

Question: After setting, the data read out are all fff, how to solve?

Answer: Check if the connection is correct.

Other possible solution:

1. Select the partition size EEE: 0 sector, DFlash: 128 sectors (32K), press OK.
2. 12V power adapter unconnected this is the clue! put 12v DC in.

Hope it helps!