Will FormulaFlash Unlock VAG Simos PCR2.1 ECU?

By | September 18, 2026

Can Formulaflash perform VAG Simos PCR2.1 unlock?

 

It cannot unlock OTP.

But it can do pcr2.1 on bench without unlocking.

Read on bench ok.

Write on bench ok.

Write EEPROM back to be unlocked.

Checksum correction with formulaflash.

Works like a charm.

What’s the procedure:
Read eeprom, write eeprom for unlock and read ALL, easy.

formulaflash simos pcr2.1 ecu