Will let me chime in first. My cameras has v1.8 to begin with. I updated to v1.9 first in the front successfully and then on the rear which was also successful. The main camera rebooted both times after the firmware update.
After the firmware update to the rear camera and the reboot the rear camera never came back.
After this I tried the Reset to Defaults and the Hard Reset procedure but no joy. Then I opened a support ticket and they sent me V1.8 firmware on email and asked me to downgrade and try, did that and still no joy.
As it stands now the rear camera is totally dead and doesn’t get detected at all.
All upgrades were done in a properly hard wired setup with brand new cables and cameras mounted firmly. If I swap out the rear camera with a known working camera with v1.8 then it all works. So it eliminates any wiring or power issues.
If I connect my non working rear camera to another main camera in my friends car it does not work, confirming that it is indeed my rear camera that got bricked.
Hope that helps, is there any way to unbrick the rear camera or update its firmware to the previous version? The front camera won’t detect it so sending the firmware from there is not possible.
What a frustrating experience.
From what you have experienced and
@breadkenty it would seem they did brick their rear camera.
Somewhere on another thread Two other dudes had rear camera problems and the work around was to use an old version of the firmware for the rear camera.
They reported that this fixed their problem and then later Viofo supplied them a firmware update but I don't know if they used it.
I'm on my phone so I'll never find the post.
Thinking out loud two possibilities come to mind.
1. Special software supplied by Viofo that specifically unbricks the camera.
2. Pull apart the camera and push firmware on to the chip. If it's possible it would require some special tools and knowledge.
Not really a satisfactory solution.
I've done some odd things to viofo dash cams but they always came back so this is interesting.
Oh one last thought in the early days of viofo updates a boot file was required first then the firmware, i wonder if they could do that to help themselves and their customers resolve this weird problem.
Cheers