Hankon6,
Thanks for responding. The amp does get power however it stays on the "Line 6" intro screen that first comes up when the amp turns on. The presets never load and it stays on the intro screen. I was able to get into a bypass "update mode" by holding in the "Amp" and "FX" button while powering the amp on. In the process, of trying different button combination while powering on, I've found other "features". Here's a list:
Holding in the "Home" and "Amp" buttons brings up the firmware updater. I was able to update the amp to latest firmware (1.91) using the Line 6 Updater through this screen.
Holding in the "Tap" button brings up something called "I0P S&Q" which is a bunch of what I guess are factory checks. You can check to make sure all of the LED lights work, check all of the buttons, check all of the knob pots, etc...
Holding in the "Home" and "FX" buttons brings up "Factory Test Mode Version 1.01.1", but it does nothing after that or I haven't figured out how to start factory test mode from there. My guess is that it is for someone at the factory to plug something into the USB and run a diagnostics on the amp.
Holding in the "Home" and "Amp" buttons brings up a screen "SEND RESCUE FILE - Rescue Ver 1.01.1". I have a feeling that this has something to do with sending a backup file to the amp by USB, but I have no idea how. I tried the Line 6 Updater while this screen was on and the Updater didn't recognize the amp.
After figuring out these different menus through trial and error holding in different buttons, I wasn't sure if there wasn't a way to hold in a particular button (or button combination) to bring up a "Factory Reset" screen since I can't past the "Line 6" startup screen when turning on the amp.
I submitted a support ticket.
Thanks for your reply!