I have simos pcr 2.1 ecu , i want to unlock but with fgtech 4 error unknown ecu
I think dashboard on / off problem
12v charger I put, but one extra batter supply given or not ?
Here I attach picture of connection but not succeed.
Remove 25640 put in programmer and unlock refit write ecu obd…..
Apply 12v dc adaptor to fgtech, not battery supply to fgtech.
Add only 2 resistors, not 3 ones.
560 ohm and 1K ohm and one wire to make a bridge.
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