Couple months back I was having problems downloading new charts to the 8GB card supplied with my iFly 720 several years back. The 8GB card was unable to hold all the US IFR/VFR subscription so I was only loading 24 southern, mid-atlantic and southwestern states I am likely to travel. I was having several problems both downloading (kept getting error messages) and some new features did not seem to work properly. Discussing the errors with JJ, I bought a new 16GB card that came loaded with all the US IFR/VFR with room left over. Several little things are now working as they should. And I have all charts and procedures for the US! Today, I updated with the new charts by putting the card in my computer. Download speed was quite a bit faster than the old card, I saw speeds as fast as 3200kbps! Only took about 10 minutes! What an improvement.