Force TP to boot into transfer mode

Hello, I have a siemens TP177B PN/DP HMI, the screen has died. It still boots and I can talk to it via ProSave using a USB/PPI. I want to extract the recipes from it, but the option is greyed out because the panel needs to be in transfer mode, which naturally I can't do because the screen is dead! Is there any way to force this panel to boot into transfer mode, or take remote access and place it into transfer mode?

Maybe the following thread can give you some hints:

http://www.plctalk.net/qanda/showthread.php?t=57586