FYI...LOW BATTERY warning...I found what could be an issue on v1.01a
If you dont change the default "Low Battery" voltage from 6.4V to something higher, it will sound the voice and or tone along with vibrate and then TURNS RADIO OFF!!! all within maybe five seconds.
Luckily I was setting on the bench.
I changed to 6.8V. Alarm goes off, Screen displays "Low Battery" and the darn thing also vibrates BUT you still have control of model in order to land. All switches work as well.
Done updating, going to test new version.
Despite v1.01a having an option to use voice or tone ONLY for such, it still vibrated.
V1.02 has now killed any and all ability to not use vibrate on LOW BATT alarm.
~~Enjoying the hobby one flight at a time~~