Help with 3G jailbreak and unlock

[mahgninnuc93]

Hey folks, been away from the iPhone scene for a while. Just got a 3G for my wife.
It has the following:
4.2.1 (8C148) firmware
05.15.04 BB

I need to unlock this for use on T-Mobile. I have searched the forums.
Any assistance with this would be appreciated.

[Mes]

Hi mahgninnuc93,

Did you use Tiny Umbrella to check which SHSH blobs are available?

SHSH blobs are required to restore any non-current iOS (except 3GS 4.1).
Download and run Tiny Umbrella (link below, post #1), advanced tab,
... check 'set Hosts to Cydia', Save SHSH, give it a min to finish;
... uncheck 'set Hosts to Cydia', Save SHSH, give it a min to finish.
... In the General tab, what SHSH blobs are displayed?

While you're waiting, re-read post #1 Tiny Umbrella for valuable info.

[mahgninnuc93]

Since I purchased this phone on craigslist will there be SHSH blobs or is this something I would have to establish once I get it jailbroken and unlocked?

[Mes]

One never knows what is available until you check. Please check as instructed.

[mahgninnuc93]

Am doing it now. It says TSS server is running. Approx how long should this take on average?

[Mes]

Press Save SHSH ... not start TSS server. They are different buttons

[mahgninnuc93]

Found 0 SHSH files to Cache

[Mes]

Something is wrong. Two (or more) should be found.

With the General tab selected, in the lower-middle of the screen you should see:
Device Model
Installed Firmware Version
Installed Baseband Version
ECID (Dec): ECID (Hex)
Serial Number
IMEI:

What is displayed for the first 3 lines?
Send a PM with the ECID (Dec) and I will check also.

[mahgninnuc93]

Nothing is showing in any of the spaces. I will close it and re-open. How long should it be before anything shows in those spaces?

[Mes]

It should show almost immediately. Is the phone plug'd in and powered on?

[mahgninnuc93]

Yep plugged in powered on. Even opens up the Window asking what I want to do . Maybe I should re-download TU

[Mes]

Do you have the latest iTunes installed?
Tiny Umbrella must recognize the iPhone before anything else can be done.

[mahgninnuc93]

Not on this computer. Gimme 5 to do that. BRB.

[mahgninnuc93]

Here we go:

Device Model: MB046LL1B
Installed Firmware Version: 4.2.1
Installed Baseband Version: 05.15.04-6.4_M352
ECID (Dec): ECID (Hex)
Serial Number IMEI:

And it DOES have saves SHSH BLOBS!!

[Mes]

From iTunes / Store, log-in or create an Apple account ..and.. 'Authorized This Computer'.

Warning: When you plug in your phone later ...
... answer/press 'NO !!!' when iTunes asks to download or download and install anything !!!
Never allow iTunes to automatically restore or upgrade the iPhone !!



Do you have 4.2.1 SHSH blobs?

[mahgninnuc93]

I"ll be standing by.

Do you have 4.2.1 SHSH blobs?[/QUOTE]

YES!

[Mes]

Good. That eliminates one step. Currently, you're on stock Apple 4.2.1 firmware

Download 4.2.1 iOS firmware .
Download and run resdn0w 0.9.6rc18, select one option 'install Cydia',
...... pay attention, follow the count-down timer closely to enter pwnd-DFU mode
Done with jailbreak.

Run redsn0w again, select one option 'install ipad baseband' ....
Done with bb update.

Install ultrasn0w (via) cydia.
For T-Mobile, turn OFF 3G settings/general/network
Any SIM should work now.

If not settings / general / reset / reset network settings

[mahgninnuc93]

Finally...almost done with Jailbreak. Then get the bb changed and hit up Ultrasnow. Woo Hoo...
Wife is happy means I am happy LOL.

THANKS A TON Mes!

[Mes]

You're welcome.

@mahginnuc93. I checked you ECID and could NOT find SHSH blobs for 4.2.1.

If you ever need or want to restore to 4.2.1, you can not ....
..... unless you use iFaith and create a 4.2.1 'pre-signed' firmware.
..... iFaith must be run while the phone is working
..... I suggest 'Do it Now'