Open remote control and check diode contact....
Would the remote from another 601 be compatible with mine?
;167617 said:Yes and NB501/3000/1000 again without PVR functions off course.
Try your remote controller with camera on mobile phone. Point remote at camera (just like you will take a photo with your mobile), and press any key. If remote is ok, you should see blinking diode on your mobile phone display.