Thanks. I meant since my 9x doesn't have the telemetry mod I wasn't sure if I could use this firmware.
Originally Posted by KKUSA
You do not need telemetry for timers. The timers will also continue counting in to the negative once they reach 0. Say you have a timer set for five minutes, and fly 8 min, the timer will read -3:00. So you essentially get what you want without setting an up counting timer. I think its easier this way as you can have a count down, and up basically with one timer.