can anybody help me...

it says "Wallaby Bootloader V5. 22" on the top of the screen(on the white portion) and "GSM OK" on below (on the blue portion). while the side volume button is pressed, then it says
"USB FLASH
MODE
=========

CONNECT USB
CABLE NOW..."



and does nothing !!!
it happened while i was upgrading from xda-rom to WM2003SE.

please help me as soon as possible.