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Pixhawk Boot Issue

(TMJ) #1

Hi all, I used QGC to reflash the Pixhawk firmware during the heavy lifting retrofit. The QGC firmware update process appeared successful, printing “Upgrade Complete”. However, when I try to power up the ROV, the Pixhawk FMU and I/O B/E lights remain solid amber and QGC has no connection.

(TCIII) #2


Are you able to connect with the ROV using

I believe that you can reboot the Pixhawk from that page.


(Jacob) #3

The firmware is not running, try to flash it again. Note that reflashing the firmware is not a neccesary step in the first place for a heavy retrofit.

(TMJ) #4

We slightly modified our frame definition, so we needed to re-flash. As I mentioned, QGC says it’s successful in flashing but the aforementioned B/E lights are solid amber and we are unable to talk to it. We have tried re-flashing with original firmware with the same result however.

(Jacob) #5

Is there an SD card in the autopilot?

(TMJ) #6


(Jacob) #7

Can you make a video of the flash process and lights at boot?

(TMJ) #8

Jacob, unfortunately I can’t take video in the lab. However, I can describe the FMU and I/O B/E lights.

  1. during flashing process: FMU is blinking amber and I/O is solid amber
  2. after flash power off and on: FMU- blinks amber for a few seconds and then goes solid amber. The I/O light blinks amber for a second and then goes solid amber.

(TMJ) #10

Problem resolved: looks like there was an issue with the compiler not fully building so the binary was incomplete. Thanks for you help everyone.

(Jacob) #11

wow. Thanks for letting us know.