Taz2022
New Member
I purchased a Viofo A129 Pro Duo with HK3 hard wiring kit last year for my Silverado. It had few glitches here and there, but I was relatively content with the purchase. Decided to purchase another set for my Carrera. Verified it was working correctly and finished the installation (parking mode duration for 24 hours with 12.4V setting). Two days later when I start the car, I noticed that the camera won't boot up (keep in mind that my Carrera is hooked up to battery charger all the time). After several tries, I learned that only way for me to turn the camera on was to power cycle the HK3 on constant power fuse tap. I assumed parking mode duration dipped the power below the setting somehow (but how? It's on battery charger?), when measure the voltage on the fuse tap, it was pulling 12.6V. I tried the 11.8V setting and activated parking mode (set the duration for 12 hours this time) after another power cycle by pulling out the ignition key and walked away. Next morning, I observed that dashcam power is off (HK3 LED was also off). Measured the fuse tap and it was reading 12.5V. I reached out to the retailer (largest dashcam vendor in North America I am told), they 2nd day aired the replacement. Make the long story short, same thing. For some reason, HK3 will shut itself down (LED off) as if low voltage was triggered and won't power back up with ACC on (ignition). Called the retailer once again. They send another replacement. I have tried this unit too with new fuse tap I just purchased. Works fine, once goes into parking mode, come back, it is dead also. Regardless HK3 went into LVD shut down or not, fully charged battery should power this thing up, but only way I can get this thing started is to pull the fuse tap out and power cycle the unit. I am running out of ideas. Only thing I can think of is, Viofo experienced chip shortages and replaced components with unverified chips? I mean, how can all 3 units fail? The one I have purchased last year didn't have same issue? Bad mfg. batch of HK3? Am I only one who is having issues with HK3?
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