I decided to update to the latest firmware today to stop the amp bugging me with the message every day. I left it to do its stuff and it went into standby presumably after the update had completed. After turning the amp back on Im not getting any picture or sound, the hdmi seems not to be switching. Ive tried different cables. The front of the amp says there is a firmware update ready for downloading after a couple of mins but when I try to update again the front panel gives an Error! 5-82 message. Im beginning to lose the will to live. Any suggestions?