I have same issue with bluetooth remote feature on XR4500 and XRS4500, when I put standby, can not turn the box back on, have to wait for aprox 2 minutes or sometimes have to unplug and plug in back to restart, so I realaized there is a bug soI unpaird under remote & accessories and stick with the IR mode which is working perfectly fine, Hope in the next update the buzz team will fix the issue.