Radf9760
lvl.2
United States
Offline
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Okay, I got a good tech support person via email. She came to the same conclusion I did, she said, "It seems that the batteries cannot communicate with the main board properly."
I sent her a screenshot of the update failure message from DJI Ass 2. I also sent her screenshots of what DJI GO shows me now for battery status. In the left hand menu it says "invalid battery." In the right hand battery menu, there's just no battery info at all.
DJI Go no longer has a message saying I need to update the firmware. The update did get to 100% before DJI Ass 2 said the update failed due to the bat manager & batteries being disconnected. Perhaps the M600 did update.
DJI Go now says there's a compass error in the header instead of "battery error." Still, it says "invalid battery" further down and as I said, there's no info on the battery menu panel. I'm not too worried about the compass error, it's easy enough to calibrate the compass and I am in my office, a compass error isn't out of line.
I found the PMU port in the M600 manual, I pulled the the top cover (the one with the fan in it) off and checked, the PMU cable is plugged in and nothing looks amiss. I checked the M600 Disclaimer & Safety Guidelines, PMU does stand for Power Management Unit. The PMU is connected at the factory and there is a warning not to mess with factory-connected parts. Thus, I haven't done more than look at where the PMU cable plugs into LB2.
I'm hoping the tech support gal I'm talking to will suggest digging into the M600 a bit to examine the PMU cable and make sure the other end is plugged in properly. Given the note in the Disclaimer & Safety Guidelines though, I don't want to do that without being instructed to do so.
It's still a weird situation though. Say I did dig into the M600 and found that the PMU cable was unplugged - how the devil would that have happened? As I said in my first post, I did two beautiful flights that day before getting the battery error, nothing went awry, there wasn't turbulence, no hard landing. The M600 flew just fine, got packed safely back into its case, and when we unpacked it a couple of hours later, we had a battery error. So it just doesn't seem like it could be a disconnected or damaged cable because how the devil could it have become damaged/disconnected?
I'm really worried that the PMU failed. If it did just randomly fail, we are exceptionally lucky that it didn't do so in the air. |
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