(Guide)Unlock your iPhone 4, iPhone 3GS On iOS 5.x.x with Ultrasn0w 1.2.7

[mobileinfo]

This UltraSn0w 1.2.7 upd ate doesn’t come with any additional baseband support. It servesto unlock the following modem firmware:

• 01.59.00
• 04.26.08
• 05.11.07
• 05.13.01
• 05.12.01
• 06.15.00

To check your modem firmware, go to Settings > General > About and see the Modem Firmware version number. Devices running in iOS 5.1.1 with compatible baseband via Sn0wbreeze, RedSn0w/PwnageTool should follow these steps below to unlock the latest version of UltraSn0w.

Step 1:

Make sure your device is jailbroken. The first step is to jailbreak iOS 5.1.1 device using an older baseband preserved via custom firmware built using either Sn0wbreeze or RedSn0w/PwnageTool.
(Skip step 1 if you already jailbroken your device.)

Step 2:

After the jailbreak process, you should see the Cydia icon present on the Home Screen. Launch Cydia and wait until the data reload.

Step 3:

UltraSn0w was released by the iPhone Dev Team, hosted on one of the default repositories, pre-installed in Cydia. No need to add new repositories, instead hit the Search option from the bottom navigation bar and type “UltraSnow” and simply hit search.
For education purposes, if you need to enter the repo manually, select the “Manage” option, then “Sources” button, select “Add” (found at the top left-hand corner). You will see a pop up box, enter the ff. http://www.repo666.ultrasn0w.com and tap “Add Source.”

Step 4:

From the search results, simply select “Install” found at the top right-hand corner of the screen.

Step 5:

Confirm the installation package and wait for the process until it is finished.

Step 6:





Select “Restart Springboard” option to enable your device for reboot. Your iPhone should be unlocked by now – ready for other networks.

Mobileinfo

[CellUnlockerPro]

good job bro keep it up

[ReDoP]

how to downgrade the baseband on iphone 4 with 5.1.1 and modem version 04.12.01

[mrfixit]

Harry potter knows how to downgrade bb , need special wand from Phoenix feather

[geluo]

good job bro.
i tray it but no way ....no service.could you help me..?
i am on sonork(gm-soft)

[blade_slash]

how about activation??

[...:::SHAMIM:::...]

@ mobileinfo
Hey
This procedure without baseband update or must need to baseband?
If i have baseband
# 01.59.00
# 04.26.08
# 05.11.07
# 05.13.01
# 05.12.01
# 06.15.00
Then can i unlock phone without baseband update?

[mobileinfo]

Originally Posted by ReDoP

how to downgrade the baseband on iphone 4 with 5.1.1 and modem version 04.12.01

Modem furmware is also known as baseband
and baseband downgrade is not possible

Originally Posted by mrfixit

Harry potter knows how to downgrade bb , need special wand from Phoenix feather

Your comment don't help anyone and it only waste forum space

Originally Posted by geluo

good job bro.
i tray it but no way ....no service.could you help me..?
i am on sonork(gm-soft)

which baseband version you have??0000000

Mobileinfo

[mobileinfo]

Originally Posted by ulad

@ mobileinfo
Hey
This procedure without baseband update or must need to baseband?
If i have baseband
# 01.59.00
# 04.26.08
# 05.11.07
# 05.13.01
# 05.12.01
# 06.15.00
Then can i unlock phone without baseband update?

what you mean by updtae bb??
if you have one of the baseband listed above so you can unlock it with the new ultrasn0w without installing ultrasn0w fixer
and before updating baseband to ipad bb just check phone's serial number
it should be below XX125XXX
and if you restored a 6.15 bb phone with original 5.1.1 then you have to again install ipad bb 6.15

Mobileinfo

[...:::SHAMIM:::...]

@ Mobileinfo
That means if phone have old bootrom then we will do install ipad baseband?
what is the new bootrom solution?
What to do if have gotten new bootrom?
Plz You can explain old bootrom & new bootrom with this unlock procedure?

Thanks

Br,
SHAMIM

[unlockers555]

.

[Bismillah_mob]

nice job... KIU .........

[mobileinfo]

@ Mobileinfo
That means if phone have old bootrom then we will do install ipad baseband?
what is the new bootrom solution?
What to do if have gotten new bootrom?
Plz You can explain old bootrom & new bootrom with this unlock procedure?

Thanks

Br,
SHAMIM

Ohhhh
it's not about old bootroom and newbootroom
old and new both are untethered now
it's about old BB chip and new bb chip
the phone's with new bb chip don't support ipad baseband
and the new chip's are mostly found in iphone's which made after 2011 25 year
""XX125XXXXX""
1=11=2011
25=25week

Mobileinfo

[said4]

Dear ! Mobileinfo
Have 3Gs 16GB
version: 4.3
serial: 849432TL3NP
Modem 5.16.01
want to unlock

with redsn0w and tick "Install iPad baseband" and Cydia or only iPad baseband
Thanks

[MALIKTARIQ]

nace jok ity but no service...........