Have one VVDI Prog and I did the Tricore 1766 on the ECU SIM2K-341 today and it was quite successful, I corrected 4 resistors of 470 ohms.
Q: VVDI Prog can read and writes tricore tc-1797 ?
A: No. And those Tricores it can read is only some VW ecu’s because VVDI Prog don’t have security bypass for other… For example: Audi A3 ECU with tricore TC-1762 it cannot read!
Thanks to @carcity (User of Xhorse VVDI Pro)
More to be tested.