after restore, stuck apple logo every 4.1 firmwares

[rosking]

i have iphone 3g.

base band 6.15

 

i installed 4.1 originals and customs.

but after restore, stuck apple logo and loading circle :/

 

giving 1015 restore and i use tiny umbrella (exit recovery)

 

i tried custom fws with iREB.

 

SAME RESULTS

apple logo + circle.

 

please help me!!!!