Foxflash PCR2.1 Lost Connection and Boot Recovery Solution

 Problem: On ECU VAG Simos PCR2.1 I accidentally wrote wrong file with foxflash over bench. And now I lost communication with it. I made backup of eeprom and flash. Now I just try every method to write again flash. I tried with ktag boot mode but have acces only to eeprom. And with Fox Flash I have error REMOVE AND GIVE POWER. Does anyone know potential solution?

Possible solutions

1).

Try to turn on the power supply in a few seconds as he asks you to.

Some users turned the power on after a few seconds as he wanted and then it started.
Also using foxflash make just set voltage to 14v, they will not communicate under 13.5v. ( see picture he used 13.4v).

2). Try this and write the All file back.

3). If tried all above and still cannot recover in boot mode, the ecu is bricked and will not live, look for a new one and turn off immo.

They don’t have to match you strictly by number, you can certainly preflea it with an odyssey that suits you. Lucky for you the PCR2.1 is old and you can find them cheap. So best to buy a new one with the same reference.

The most important thing is that if your car has a lower lock, you will find the same with the lower lock of the car. And when replacing that ecu cannot be cloned, but you have to adjust it, immo given and somewhere you have a variant and immo off.

4).

Buy new ecu. And flash original frf file with odis engineering on new ecu. Don’t need old read.