I am Sad Face...

Hello. Today just out out of curiosity I decided to take apart my G3 and look at the gearbox. So after maybe 45 minutes (it's my first time I took it apart) I had the gearbox and the lower receiver alone. I couldn't get the lower receiver to get off the gearbox strangely though, so I didn't take apart the gearbox. I put everything back together like it was, but now when I pull the trigger nothing happens. I checked the motor wiring to make sure everything was right there and it was, and I didn't cut or destroy any wires to the battery so it should be working but it's not. Any ideas anyone?

Check the leads coming from the switch assembly inside of the mechbox. Or check the fuse.

make sure your motor is in all the way also.

Nothing is working so I think I might just send it to a place to fix it and maybe even get it upgraded there.

Okay then if you're not sure...that is the best way to do things.

If you removed the selector lever, double check its position, take a good look at your cables going into the butt stock, on the G3 they have the tendancy to get pinched during assembly,
you may also want to make sure that the selector plate is moving into position when you change the modes of fire, again a selector lever problem. If you have a Volt meter, check the electricity flow to the motor, if the fuse is still installed, chances are you have a loose connection.