OK. Never done this before but I will be using TDB firmwares. Not too concerned. I will do it from safe mode after testing to make certain the drive is not defective to begin with.
Got the DVR-111 106version the 111L 819 and 826 interior versions.
1.The 106 version comes with a flasher. The 826 does not have a flasher with it. Does it need one?