I'm going to take a turn & suggest that before you abandon or return you should definitely try a different SD card. Is the SD card your using now within the requirements of DJI recommended specs? Before opening things up or packaging up you baby run out to walgreen, best buy, walmart etc & pick up a new clean SD card. I suggest springing the extra few bucks for a good quality UHS-3 Class 10 Ultra. walgreens might sound silly but my local stores almost always have sales on micro ad's.
Start over fresh with the new card & go back to the beginning. Just my humble opinion but i haven't heard what SD card your using currently. A chance it is all due to the SD class & specs.
Best of luck, updating firmware always seems to test all of our patience at some point!! I spent 4 hours when my my new P3P arrived just trying to figure out the firmware situation![]()
Thanks , I used the 8Gb SD card that came with the drone as well as a 64 Gb Sandisk that I purchased too . I don't mind spending a few quid if that sorts it , any particular brand to go for ? (I'm in the UK ) .