Iphone 3GS wont turn on after 6.15.00 update??

[minnieman94]

hey guys,

i really need some help... i upgraded my baseband to the 6.15.00 through redsn0w and it worked perfectly fine. that is until i turned it off. now it will not turn on, nor is it recognized by itunes. I have tried putting it into DFU mode with no avail, tried every program i know and i just cant get it to work.

let me know what you think,
thanks!

PS this isnt my phone... i was trying to unlock it a friend, and if i bricked it i am SOL.

[Goof]

Its not bricked

Your iPhone is most likely tethered. That means you need to start up Redsnow and reboot using the "Just Boot Tethered Now" option in redsn0w, I think that if you download GreenPois0n and if you plug in your iPhone and run GreenPois0n it will start up.

[minnieman94]

Its not bricked

Your iPhone is most likely tethered. That means you need to start up Redsnow and reboot using the "Just Boot Tethered Now" option in redsn0w, I think that if you download GreenPois0n and if you plug in your iPhone and run GreenPois0n it will start up.

tried both of the methods mentioned, but my computer doesnt see my iphone at all. what should i do?

[joecef]

plug into a wall socket and wait 10 minutes
if nothing occurs hold down home button + sleep until it boots or shuts off
if it boots shut it off again and move to pc usb and hold home button while booting to get itunes recovery screen
from there you need a custom 4.2.1
enter pwnd dfu mode with redsnow9.6b6 or ireb 4.0-4.2rc3
restore o custom 4.2.1