Many cheap OP-COM clones sold recently don't use the genuine . Instead, they use a "fake" or "locked" chip (often labeled V5 or similar). If you attempt to flash a 1.99 HEX file onto a fake chip, the interface will die instantly. 2. Version 1.99 vs. Version 1.70/1.95
Ensure the "1.99 Top" file you downloaded is exactly 45,348 bytes (this can vary slightly by compiler, but consistency in the community is key). opcom firmware 199 hex file top
Provide a workaround for older "China Clone" interfaces that were stuck on version 1.39 or 1.45. The Risks of Flashing "Top" HEX Files Many cheap OP-COM clones sold recently don't use the genuine
Improve communication stability with newer Opel models (Insignia, Astra J, etc.). opcom firmware 199 hex file top