Here’s a review based on the typical user experience with (often used for Opel/Vauxhall diagnostics). I’ve written it as if from a real DIY mechanic or workshop user.
Using the PICkit, I erased the chip, wrote the new patched v1.67 hex, and verified the checksum. opcom 167 firmware work
Works as expected – but know what you’re getting into Rating: ⭐⭐⭐⭐ (4/5) OPCOM 167 Firmware Work: A Comprehensive Guide OP-COM
Supports adding/deleting ignition keys and immobilizer synchronization. I erased the chip
Vehicle model and year ? (e.g., Astra J 2013)