YP-T9 Developpers Easter egg

[lebellium]

I'm still here

You know what, I finally bought a YP-T9 2 weeks ago.

Unfortunately it's not a bluetooth version but I got the bluetooth menu to show up in firmware by setting a bluetooth mac address (BT_MAC_ADDR.TXT file). Of course the bluetooth features don't work since the chip is missing in hardware but it's fun anyway

Actually I bought it because I got full conviction now by analyzing the MUON.ROM firmware file that a key combination starts the developers egg slideshow.
There are several lines related to "easter" or "egg" but the following one is particularly interesting:
MP3_MuonApplication/ControlApp/ControlAppEasterEgg.c %s/EGG/dev%d.jpg /SYSDATA

The problem is that I can't find out this damn key combination!
The probability to find it out by guessing is so low....