need help with iphone 3gs 3.1.3

[tsogtoo5]

hi
everybody, i need help with iphone 3gs 3.1.3.
i think i block my iphone 3gs, i was trying to jailbreak and unlock by using blackra1n. now on display show only apple logo, when i connect my iphone to computer doesn't recognize computer and itunes and run out the battery.
PLEASE HELP

 

[rdiddy_25]

Blackra1n doesn't work wit 3.1.3. Put ur phone into DFU mode and restore in iTunes. Hopefully u saved ur shsh blobs in cydia so u can downgrade back to 3.1.3, then jailbreak using Spirit

 

[rdiddy_25]

Then use ultrasn0w from cydia to unlock

 

[b0sanac]

you need to jailbreak using spirit. Spirit