Firmware upgrade stuck at 90%

[AndrewS]

I have successfully upgraded firmware v 2.7.25 on 3 of 4 batteries for my Evo Pro 2 V1 going the "manual" route (save bin file to SD). On the 4th battery however, it is stuck at 90%. I've rebooted and tried the upgrade twice with the same result. Any ideas? Thanks

 

[DaveBurbank]

If it were me, I'd carefully review the log file on the micro sd card to see where it got stuck. Then I'd try with one of the 1st 3 batteries you already updated to see if it goes smoothly.

 

[GeoDrone SRL]

Try again from MicroSD, format it first.
I had issue on writing FW for camera and the gimbal after update was just dead...I have restarted the update from Micro SD (copy again BIN) and all worked ok.