I was able to get my DJI altitude restriction unlocked today through DJI. I did not use any 3rd party app. I legally flew over 10,000 feet and still stayed below 400 AGL. Here is a view from the Rocky Mountains with my M210 V2. It is a breathtaking view. This drone is amazing. I flew up there with no problem at all. I have no doubt I could have kept climbing. Enjoy!