Right controller not pairing

Meta quest 2 controller not pairing. Controller stopped working couple days ago. Went through all the troubleshooting - batteries, unpair, repair, hard boot, resetting, factory reboot, software updates - now I’m stuck in the factory restart mode with right controller not connecting. Turns off, vibrates, then 2 light blinks, break, 2 blinking lights. 

Any suggestions or are we stuck having to buy new controller? 

Have a pretty upset kiddo over here as this was his first ever purchase with his own money. 

thx