Key combinations to invoke system screen on Samsung Galaxy Pro

Downloading…
Press and hold “Power/Lock” + “Q”

　
determine_lcd_type, LCD type : blah blah blah
Press and hold “Power/Lock” + “W”

　
Emergency Dload Mode (ARM9 mode)
Press and hold “Power/Lock” + “E”

　
RAMDUMP Mode (ARM9 mode)
Press and hold “Power/Lock” + “R”
Press and hold “Power/Lock” + “S”
Press and hold “Power/Lock” + “D”

　
Android system recovery
Press and hold “Power/Lock” + “T”