P3 Firmware Phantom 3 pro no image or camera controls

[Maxjackson]

Tried a firmware yesterday and it just sat there flashing green/red like it was updating for about 1 minute and then started flashing green quickly for about 1 minute. I checked for a log file and there was nothing there.

 

[RodPad]

Welcome to the Forum!
What is the reason you updated the Firmware?

Rod

 

[quaddamage]

The simplest way is to follow this. Knowing the issue was caused by FW update fail, you may skip some steps.
Fix no video feed / black screen / no image transmission / no FPV on Ph3 Pro

 

[seaman5705]

Tried a firmware yesterday and it just sat there flashing green/red like it was updating for about 1 minute and then started flashing green quickly for about 1 minute. I checked for a log file and there was nothing there.

It might be Ambarella in gimbal board connecting/disconnecting . To check , please connect gimbal to computer - if you see a drive mounting/disconnecting repeatedly , then there is a problem with gimbal board .
What you have seen - 1 minute of green/red flashing - it was not an update but just AC writing folders on SD .
A board with that behaviour could not be flashed/upgraded from SD . I have a similar board - it flashes green rapidly - about 2 long sets of flashes , then it goes into a set of green/reds, then again rapid greens . Ah, and there is no image transmission .

 

[target ceasefire]

I am a mavic 2 enterprise user and updated to latest firmware via DJI Assistant 2. Upon successfully updating I lost the ability to see my camera feed while utilizing an iOS device. I still was able to see the telemetry and take pictures and video - it could only be viewed in post however. It was then (lesson learned) I checked the mavic forums and learned to not upgrade if using iOS and DJI's official line was to get an Android. While DJI said the firmware upgrade was non-reversible, I was able to downgrade to a previous version, after trying for several days, and all is well. I had also upgraded my controller firmware without issue. However, I get a warning upon startup that my device and controller are using incompatible firmware - everything still works well though, just have to decline upgrading. So, don't know if that is an issue with the Phantom, but the symptoms seem similar. Hope this helps.