Iphone 3gs stuck in DFU mode

hi,
iphone 3gs stuck in dfu mode while downgrading ios.
had jailbroken iphone 3gs ios 4.1, need downgrade os 3.1.3.
while downgrading things works fine except error 1015 , iphone stuck in dfu mode.
suggestion next?

 

ab24950 said: ↑

hi,
iphone 3gs stuck in dfu mode while downgrading ios.
had jailbroken iphone 3gs ios 4.1, need downgrade os 3.1.3.
while downgrading things works fine except error 1015 , iphone stuck in dfu mode.
suggestion next?

click expand...

run tiny umbrella , click on "exit recovery".

 

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