ECUHELP KT200II ECU Programmer is confirmed to VR OBD mode read and write 2015 Audi A3 1.6TDI with ECU DCM6.2V, and Checksum by kt200, PS: VR read didn’t work at the first reading, second try worked.
Look at the following image of VR writing the DCM6.2V with KT200II:
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