Helpppp

I buy walkera receiver 2702 just now but its aile gyro reverse switch is not working. What should I do now,,,Please help me

Do you mean old walkera RX2702V?
If you want to reverse AIL control, try swapping servo cable on AIL and PIT.

Yes 2702v.I swap it but still aileron gyro doesnt reverse its direction

Swapping worked on mine.

If possible, try to test if the switch is faulty. If the switch is bad (always ON or OFF) bridge/short with a piece of wire or cutting a leg of that switch should work....
I know this is horrible idea

Last simple way is mount you 2702V backward

Hope this help

I checked the switch and it was working properly. so i change the reciever backwards..and it works .. Thank you very much...