How to downgrade OPCOM 1.39 without Bootloader error

Opcom firmware 1.70/1.65 updated! But how to downgrade Opcom firmware to version 1.39? Here you go.   Free download all picture, .ept and pic18f458 v1.39 files in rar: https://mega.nz/#!QeQFRQ4C!1pHD26JPCr-az8bsPrrHxRAFN65nM17-SteIzC1I-BM   You need: OPCOM TL866 programmer   How to downgrade OPCOM… Continue Reading