XBIB-R Problem

I think my XBIB-R board has a problem and it’s the RESET Switch. here’s my story.
I have successfully changed the firmware of the xbee radios thru the board and are detected correctly by XBIB-R-DEV boards. but when i plug it again with my XBIB-R, it can’t be detected by the X-CTU, the yellow and green leds (DIN & DOUT) are lighted steadily. i have tried configuring it on the XBIB-R-DEV with different firmwares and was successful but when i plug it to the XBIB-R, it can’t be detected. I’ve also tried the Reset Switch when prompted (S1 on XBIB-R) but with no avail.

any suggestions?