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107G for Christmas - No green light on Controller
January 22, 2013 - 6:01 pm

This same thing happened with my controller.  If you examine the battery compartment, you will notice that you can slide the batteries lengthwise.  Just be sure to slide the end to contact the plates and the other battery to contact the end of the other battery.  The spring side should be fine.  I had to slide the batteries to get mine to power up.

January 22, 2013 - 1:33 pm

Yeah, syma needs to stop putting in the spacers. All they do is make the batteries not connect to eachother.

January 22, 2013 - 12:36 pm

I had a very similar problem, but rather than adding bits of foil, I removed the little white plastic spacers between the batteries in the battery compartment and it works great.   I took the controller apart and tested to see how much voltage I was getting between the red and black wires- if all batteries are in good shape (1.5v+) and making good contact, you should get ~9.0v+ (fresh batteries should give you ~9.5 or so).


I was very close to returning this to Amazon, but didn't want to pay return shipping, and didn't want to wait for another one to be delivered.


Sounds like DOA controllers are a common problem- hope this helps solve some problems for people.


Good luck!

December 29, 2012 - 8:45 am

Hi, I have just bought one from Amazon and it arrived today, the green light wouldn't come on and I also thought it was a dodgy one until i played with the batteries, it was the connection, I folded silver foil and placed some in between the batteries and the connectors, and it worked!! Too much gap and no contact!!


Hope this helps, have fun, its superb!!



Syma Freak
December 27, 2012 - 11:34 am
Member Since: November 26, 2010
Forum Posts: 1438
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Someonespadre is correct-have had a few remotes had to adjust the connectors in the remote as not good contact with batteries-let us know how you go!

"Fly like a butterfly sting like a Syma" http://syma107.com

December 27, 2012 - 11:31 am

I had the same problem.


Remove the battery cover.  Turn on the switch.  Verify the batteries are installed correctly.  rotate them until the light comes on.  Put the cover back on but don't tighten the screw all the way down.  The problem is cheap battery box but I have been able to get it to work.


A couple of other things: a guy on Youtube says, don't run the battery completely dead, it may not charge up again.  when the rotors start to slow down (it won't climb more than a few feet above the floor) and it starts to yaw despite prior trim then stop, let the battery cool then charge it up again.  Also he says wait 15 minutes after the charge to let the battery cool.

December 26, 2012 - 12:40 pm

I had that happen.  I just opened up the back and rolled the batteries around without taking them out.  Screwed the cover back on and all was fine.

also double check all batteries are in correctly.

Hopefully it's something that simple.  You can still use one controller for both S107Gs if push comes to shove.  Just have to learn to share.chopper

Matt Donovan
December 26, 2012 - 4:41 am


Great forum. I hope I am posting this is the right place. We got two of these for Christmas; one works fine the other controller's power(?) green light does not come on. We tried two sets of known to be good fresh batteries.  Any thoughts? Or is this one going back to Amazon?


Thanks and Merry Christmas!



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