Just to eliminate the obvious .... are you trying to turn it on properly... press, press and hold?i bought from amazon a battery for P4 ... its fully charged. when i connect it to the drone it wont turn on. but when its on with the drone all the 4 green lights on battery are on any help or anything i can do?
Send it back for a replacement.yes the others work ok.. and this battery i bought is DJI battery bought on amazon
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