Unlocking question

[skynet2000]

how do I check that on Cydia I have SHSH:IOS 4.2.1 +,4.3

[Stray]

You will need to use a custom firmware to keep your current baseband you can either use sn0wbreeze or use cydia. THen download tinyumbrella from google and start tss server and then click shift restore and restoe

[skynet2000]

how do I do it with sn0wbreeze or cydia ????

[Goof]

You need to make a custom firmware using Sn0wbreeze and set Baseband Preservation mode.


Sent from my iPhone using ModMyi

[skynet2000]

is there any guide to do this?

[Stray]

Do's and Dont's of Jailbreaking

[Goof]

How to update an iPhone while preserving the baseband

1) Download PwnageTool 4.2 if your on a Mac from Here

OR

Download Sn0wbreeze if you are on Windows from Here

2) Download the 4.2.1 firmware from Here

3) Open whichever program you downloaded and browse and select the firmware that you just downloaded.

4) Select Baseband Preservation Mode and create a custom firmware.

5) Plug your iPhone into the computer and put it into DFU Mode, your screen should be black and should NOT have the recovery mode logo on it.

6) iTunes will recognize your iPhone as in recovery mode and then restore your iPhone with the 4.2.1 Custom firmware you just created.

Once the restore is done your baseband should have stayed the same.

7) Unlock your iPhone using Ultrasn0w 1.2 in Cydia.


Sent from my iPhone using ModMyi

[skynet2000]

Thank you I Will try this ,will this back up my file or I have to create a back up on iTunes?

[Stray]

create a backup