Connect your AVR 1700 to your home network. For me, this meant temporarily moving my cable modem and wireless router into the living room and connecting the receiver to my router with an ethernet cable.
Using your computer, determine the IP address of the AVR 1700 on your local network. You can do this by logging into your wireless router's web interface, or by using a utility like this one: http://www.nirsoft.n...rk_watcher.html
Type the IP address of your AVR 1700 into a web browser on your computer (it should like this: 192.168.1.xxx, with the last three digits based on your individual network). If done correctly, you will be looking at the Harman Kardon web interface for the receiver.
Click the Choose File button and choose any random file on your computer. I picked a small txt file. Now click the Upload button. Dont' worry about what file you choose. The operation will fail, but you will have jolted the receiver out of update mode.
You're done. BCO Update message should disappear, and life is good again!
I hope this helps!
Software Update Download
Harman Kardon AVR 1700 Firmware Download and Update for Windows. 1 Harman Kardon AVR 1700 Firmware V03.05A. File Name: avr17002014v03.05a.zip. Sep 17, 2016 6 Comments on Harman Kardon AVR1700 BCO update #fail If you own a Harman Kardon AVR1700 receiver that has locked up after displaying a BCO Update message, this fix may work for you. It worked for us. Mar 10, 2019 Harman Kardon Software Update Avr 1700 Update March 10 2019 This is a free 7 day trial version of the main MyAV app that can also control main other IP/IR controllable devices. A friend has an AVR1700 receiver which displays a BCO Update message and locks up. A google search reveals this problem has affected others, but no solution other than returning the unit for service has emerged. View and Download Harman Kardon AVR 1700. AVR 1700 - Software Version V03.05A. Firmware Update - Released Nov 2008 - Download Here. Link Harman Kardon on instagram.