Denon Avr E300 Firmware Update !free!

: Updates may occasionally reset your custom audio settings. Ethernet Recommended : While the E300 supports Wi-Fi, using a hardwired Ethernet cable

The last official firmware (Version xxxx from late 2015) fixed a few minor issues: Denon Avr E300 Firmware Update

Do not turn off the power or unplug the device during this process, as it can take up to an hour and may brick the unit if interrupted. Method 2: Updating via USB : Updates may occasionally reset your custom audio settings