When I added the IMU, the bottom status display (volts, amps etc) shows up during intial boot up but then is replaced by a thin line (I think this is heading). Is this normal with 2.5-5 image? Also have 2.5B electronics.
Hm, I lost the entire dashboard when I added the IMU and that was resolved by uploading the Arduino firmware one more time.
I am running the 2.6 version and it seems not like the same problem, but maybe give it a try.