avionic rcb6i transmitter and receiver WONT bind.

Everything was working perfectly for a year,but two days ago my receiver started blinking instead of emitting a solid red light. Consequently, I tried to bind it again,but it's not successful. I held the bind button and released it when the light came  and it blinks like it is supposed to ,but when I restart the TX and the RX the RX keeps on blinking. I tried keeping it more than 50 cms away ,but still it didnt work.
I have tried everything the manual says but it won't bind.

Contact the rc bazaar team.

avionic rcb6i receiver and transmitter wont bind

I was using this tx. and rx. from last 2 year, and it working good.
last 4 month onwards i didn't used this...but today when i turned on, the receiver light blinking contentiously and  couldn't pair with the transmitter..
If anyone having the solution, please replay.