I had an issue with roller wheel on my Radiomaster TX16s that it scrolls only one way (down) and sometimes few times up, but its really hard to use.
Same issue happens mostly on Jumper T16, but I was “luck” with Radiomaster as well. Can this be repaired somehow, or I need new encoder?
Also as original speaker is relatively quiet I did replacement as well (Also as I’m using TBS crossfire – this is solving interference noise from TBS module).
you can order new roller wheel here: https://s.click.aliexpress.com/e/_An3JOV
and louder speaker here (and also other parts for TX16s): https://s.click.aliexpress.com/e/_99Dled
by the way, If your looking for a really cheap TBS Crossfire Immortal T antenna: https://s.click.aliexpress.com/e/_AKkUuz