Viofo A129 Duo not recording if rear camera is connected


New Member
Aug 11, 2020
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Boston Massacusets
United States
Hello everyone,
I have installed a new viofo A129 duo cam(from amazon) in my Palisade 4 days back and its having issues recording if both front and rear camera's are connected. I have set loop recording to 5 min(motion detection off) but get videos which are only few secs(10/12secs) if both front and rear are connected.I have tried the below and have had no luck. Appreciate if there are any more suggestions that i can try before trying to return this.

1. Memory card used -Samsung EVO Select 128GB microSDXC UHS-I U3 100MB/s Full HD & 4K UHD Memory
2. Formatted the Card in Camera - same issue with recording
3. Tried formatting the card using SDFormatter(rewrite) and then formatted in camera - Same issue with recording.
4. Disconnected rear camera - recording successful with 5 mins loop
5. Reconnect rear camera - front camera beeps few secs later and stops recording. In the recorded videos the video is stuck at 5/6 secs and the recording stops at 10/12 secs.