[didino6]

there is my problem

1- i have an iphone 3gs 4.1 i want tu jailbreak it and unlock it
so i upgrad it to 4.2.1 and with redsnow i jailbreak it and update ipadbasband
finally i unlock via ultrasnow

-for moment iphone work fine but when i off it i wan to power it

-it stuk at appl logo and restart some time recover mod

-so i try to restor i wih firmware 4.2.1 resula error 1015 "recover mod" (tinyumbrella-4.21.01.exe) same problem

-i try to restor i wih firmware 4.1 don sart restor
-i ry o resor fimware costom 4.2.1 on dfu mod i give me error 1601
so how i can restor i with fimware costom 4.2.1 help me plaese