Yes, I already read that thread, but as that was a question regarding k-tag I didn't thought I could use the information for reading with MPPS.
My disc is like Family 539 or HW III Family 53 (They seems the same?). I can get it to bootmode with a 1K ohm resistor to CNF1 and grounding boot pin for 3 sec.
I will try to read via can connection, and later in boot mode as last option, but i'm a bit affraid to lock the ECU ? Should i be?