Has anyone else had this?
Fly app gives a popup for battery firmware update, I click update and it shows at 70% progress immediately then after around 30 secs I get an update failed message.
I have three batteries, one does not give an update prompt, both of the others do the above.
DJI suggest sending the two back for assessment but if its a quick fix I’d rather not lose 60% of my duration for however long it takes.
BTW no swelling or defamation.