rx701

I work for a retail store that is getting into the drone business. I've been given the task of adding a Naza M Lite GPS unit to a Storm Drone 4 Mini (Devo RX701 receiver), but I'm having trouble getting it to work. I've followed instructions from Helipal but they are for the DJI Flamewheel F450...

I recently got a Storm racing drone. It took a hard hit to the ground and now it seems the controller won't connect. The red light on the receiver is a steady red. Everything else appears OK. I can't find any loose wires. Any ideas?