Heat or unpowered?
Good question since mine could have been either one.
When I flew it last November all was fine. Once mid winter I did what DJI recommends, remove props and run down the batteries and then recharge to half charge or something like that.
It could have been the heat from the batteries being discharged.
Or it could have been the two months after that when it just sat in it's case waiting for spring.
Wondering about leaving a half charged battery in it this winter. I bought a new wifi module a few weeks ago and an enjoying it once again. But if it's F'ed in the spring again I give up on it.
the only way I've been able to get mine to say "Boot Me" was to have the 3.3 jumper soldered in place, .
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