Try a reset of the recorder (poweroff +stop button on the deck, unplug for 2 minutes, apply the easy setup procedure). This should solve the problem with the UPDATE/tuning stuck . Afterword you should retry the firmware update to 1.70. Just to check it, firmware update can only be made via downloading it from the sony support site, burning it on a DVD and apply the procedure on the deck: no picture shown on TV, no progress PERCENTAGESIGN shown... do not confuse this with the option in the system menu that does nothing since the firmware is not available OTA.