I can't believe this is so difficult to fix. I've emailed 2 support areas within Yuneec, but had no answer yet. In the meantime I can't use the trim function that used to work perfectly. Must be something to do with the last software update.Thanks for bringing this up, I thought I was doing something wrong. I have exactly the same problem, and also do not have option to change font size. T1_4 shows input in hardware monitor and I am on the same firmware version as yourself. Eagerly awaiting a solution from one of the many knowledgeable folks on this forum.