Never turn off the receiver or unplug the power cord during an update. Step-by-Step Software Update Guide
Put the AVR 151 into (power off but plugged into the wall). harman kardon avr 151 software update
are primarily performed using the front-panel . However, it is important to note that this model is an older unit, and official firmware updates are rarely released now. Updating via USB Port Never turn off the receiver or unplug the
Never turn off the receiver or unplug the power cord during an update. Step-by-Step Software Update Guide
Put the AVR 151 into (power off but plugged into the wall).
are primarily performed using the front-panel . However, it is important to note that this model is an older unit, and official firmware updates are rarely released now. Updating via USB Port
