The A139 3ch only works with the front camera

mladen967

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Sep 14, 2021
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I have an A139 3ch. My interior and rear camera have stopped working. Only the front one works
 

viofo

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May 30, 2018
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How long have you been using the camera?

Do you mean the camera can't detect two back cameras?

Were two back cameras connected stable before?

Please unplug two rear cables and exchange the back cameras or cables, then plug one back camera at a time to test.
 
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