Tx wont respond after adding tilt lever

[Moskino]

So after a stressful situation with the h3-2d, which is now working with my Phantom 1, now the transmitter not responding after taking apart and adding tilt lever that came with upgrade board kit..when i load up naza assistant 2.20 it recognizes the receiver..shows mode failsafe. but the sticks indicator are black and all the way to right..receiver type set to d-bus..i made sure tx is bind to the receiver..made sure no wires in tx loose..i calibrated the tx..getting error 27 gps not calibrated.Desperate to get back in the air..Any help is greatly appreciated.