I last used my drone in Decmeber 2018. I put it away for the winter and when I took it out I couldn't format the micro sd card. I took out the card and tried to format it in my computer but it seemed to be locked, even thought there wasn't any lock feature on the card. I bought a new card and put it into the drone and I still get "format failed" after formatting it. I know the DJI software was updated over the winter, even though I wasn't flying but I still installed the updates. I'm using an iPhone 6s that worked great before the 6 month lapse in flying, I alwo seem to get more interference in my wifi connection between the phone and the controller where I never had before. Did the updates causdeproblems? I'm on DJI Version 4.3.20 for iPhone

I last used my drone in Decmeber 2018. I put it away for the winter and when I took it out I couldn't format the micro sd card. I took out the card and tried to format it in my computer but it seemed to be locked, even thought there wasn't any lock feature on the card. I bought a new card and put it into the drone and I still get "format failed" after formatting it. I know the DJI software was updated over the winter, even though I wasn't flying but I still installed the updates. I'm using an iPhone 6s that worked great before the 6 month lapse in flying, I alwo seem to get more interference in my wifi connection between the phone and the controller where I never had before. Did the updates causdeproblems? I'm on DJI Version 4.3.20 for iPhone