I don't get any message, but if for a test, as I thought it wasn't holding altitude, I set to 10 feet, I took off and flew around a bit. In a few minutes it was down to about 3 feet, and would NOT ascend above that??? So landed and then tried again - same results. it slowly assumes a max altitude of 3 feet - would likely go lower until ground level. Do you guys think the board is bad?? Other ideas??