helo guys

i nedd help here

first i upgard my firmware from 1.1.4 to 2.0
but not succes
i dont KNOW why and i give up and thinking back to firmware 1.1.4

then

i unistall itune 7.7
and install itunes 7.5 to downgrade back to firmware 1.1.4

and done all the thing used winpwn

but when i want to restore back using itunes 7.5

it said "THE IPHONE COULD NOT BE RESTORED. AN UNKNWON ERROR OCCURED (20)."

AND THEN I DO AGAINT WINPWN BUT CANT DETECT MY IPHONE
SAME GOES TO ILIBERTY, IBRIKR, ZIPHONE. CAN DETECT MY IPHONE

BUT AT ITUNES 7.5 SAID MY IPHONE IN RECOVERY MODE. MUST DO THE RESTORE. AND WHEN I DO THE RESTORED PROSES STILL
SAID THIS WARNING. "THE IPHONE COULD NOT BE RESTORED. AN UNKNWON ERROR OCCURED (20)."


SO ANYONE CAN HELP ME???

IM FROM MALACCA....

THEN?

SO BRO U STILL USING FIRMWARE 1.1.4>
?