Help, not having used my bird for couple of months I had to upgrade firmware, not too big a task after having no problems previously. Wish I'd never started, formatted the micro sd card in the bird, I then downloaded the latest firmware file and unzipped it. Transferred BIN file to the micro sd and inserted sd card into the gimbal.  So far so good? Switched the bird on and after its initial little start up dance, the expected bleep for updating never occurred. The front red lights are on , the rear lights are flashing yellow, and the green light on front of gimbal is solid green( no red and green). Have tried on five occasions to date leaving the copter running for between 35 and 50 mins and nothing, not a sound . After switching off I looked at micro sd and no txt files visible either. Have tried brand new micro sd card as well with same results. Help, I'm pulling my hair out first time in months decent weather and the bugger won't upgrade. Frustrated, angry, looking for help advice.

Thanks
Andyp

Sorry forgot mention using phantom 3 advanced.

I'm having the exact same problem. I opened a thread about 15 minutes ago LOLs.

All sorted replaced battery and started again another micro sd and works......weird

Saddler1962 Posted at 2017-6-19 05:02
All sorted replaced battery and started again another micro sd and works......weird

I tried with 4 different microSD cards and still doing the same thing. I tried formatting the card using the DJIGo app, but comes back with a 'Cant format the card' error on all four. Can I ask you which make and model of SD card worked for you?