Im having difficulty with my 2008 TRX420TE ES (electric shift) 2wd.

To start with, the bike would have NO response when the key was turned on. After fiddling with the bike I bypassed the kill switch by soldering the 2 wires together and now the backlight on instrument panel will come on but there is no writing that comes up. Its just an orange screen with nothing on it. The bike will not crank, shift, or anything but the light is on. I’ve checked the connections on everything but cant seem to figure out what may be wrong or how to check any possible problems. Thanks ahead for any help you may be able to offer!!!