I was flying my Tello over a lake. The controller showed an error message and the controls would not respond. My Tello started descending, landing in the lake a few feet from shore. I was able to retrieve it a few seconds later. I removed the battery and let it sit. After 6 days I put the battery back in and voila! my Tello was flying again. I am grateful that it was able to survive a brief time in the water but i won't be flying over water again any time soon.
BrianK
BrianK