is the backlighting on the display


I remedied this lately with a backlighting kit from: https://www.tech4rc.com
Fitting it is straightforward, albeit a bit fiddly; especially if you have fingers like gherkins (I don't..but you might have

has the virtue of being plug 'n' play, so to speak.
There's also a good demo of the fitting process on Youtube, although the video is surprisingly grainy..almost like an old VHS. But, don't let that out you off if- like me- you get fed up of needing a torch to accompany your prized TX on poor light days. The kit itself is based on the one sold by Turnigy, and is really quite inexpensive.