still not working

**worldofmanda** · 05-06-2009 12:05 PM

i am on version 2.2.1 (5H11)

Modem Firmware 02.30.03

i tried to downgrade modem firmware using the 3g baseband downgrader but i gat a message saying that you failed.

i also tried all the solution listed in this thread.

i want to use my iphone on t-mobile.

**worldofmanda** · 05-06-2009 12:11 PM

i am on version 2.2.1 (5H11)

Modem Firmware 02.30.03

i tried to downgrade modem firmware using the 3g baseband downgrader but i gat a message saying that you failed.

i also tried all the solution listed in this thread.

i want to use my iphone on t-mobile.

**volkspost** · 05-06-2009 02:06 PM

Originally Posted by worldofmanda

i am on version 2.2.1 (5H11)

Modem Firmware 02.30.03

i tried to downgrade modem firmware using the 3g baseband downgrader but i gat a message saying that you failed.

i also tried all the solution listed in this thread.

i want to use my iphone on t-mobile.

Did you check your Bootloader version before trying to downgrade? If it's not 5.8 you wont be able to downgrade.

Just in case you dont know
iClarified - iPhone - How to Check Your iPhone Bootloader Version (Windows)
or
iClarified - iPhone - How to Check Your iPhone Bootloader Version (Mac)

and if BL=5.8
iClarified - iPhone - How to Downgrade Your iPhone 3G 2.30 (2.2.1) Baseband for Unlock

**worldofmanda** · 05-06-2009 02:14 PM

hello,

yes i tried it but i cant get access to the iphone with the ip address. (Step 4) i know the ip address ID user and password alpine but i always get message Network error: Connection timed out.