Xhorse VVDI pro: here Wiring diagram for 3M25J mask located in ISM/DSM unit of MBenz
Here all dumps readed after renew this DSM unit with VVDI MB tool
https://mega.nz/#!5A52mZgI!THRQxXZsxuKPcajAMhhBR1u8nZReSm9hV5sSCyP-2OA (pass: 19.3.2017)
Part number: A000.270.18.52
HW number: 005.446.18.10
Boot SW: 012.448.46.10
Main SW: 011.448.98.10
When MCU UN-Secured, then enough only 4 wires to solder at MCU ( i found this wiring in VVDI Prog ) I don’t know the best technique how to lift so small legs, but need to have steady hands and very slowly and carefully lift the legs…
but first better to take out all tin with some desoldering wick-wire
