How to repair the double horse 9117 rc helicopter

Hello , guys

I did not update my blog for long time !

Today i will show a post to somebody who bought 9117 rc helicopter before and met problems to fly it !

The double horse 9117 rc helicopter was made by double horse factory who is professional on producing big rc helicopter. The double horse 9117 rc helicopter was the first 4CH rc from double horse .

If you have met a problem that your 9117 helicopter can not fly well , try to follow the tips to find the problems , do not buy 9117 rc helicopter spare parts first .

Have you solve your problems ?  If not , you should consider that your double horse 9117 rc helicopter parts was broken . First , if the helicopter can not give any response to you , maybe the pcb or transmitter is broken . Or find the parts which not work well and buy new parts for it . Then replace it , your helicopter will work well again .

The follow image was the double horse 9117 helicopter parts list and the helicopter structure.
It may help you to find the problem .