I-phone 3GS newer model on 4.1 need to go up to 4.3 and not lose unlock

[jking79]

Phone : I phone
Model : MC133B
3 GS newer model
Current version : 4.1 (8B117)
Modem Firmware : 05.12.01


Hi All


I need some help
I need to upgrade to at least 4.3 so I can use some apps etc.
Thing is I need to keep my unlock and im wondering firstly can this be done ??
and if so if someone would help me do so.
I upgraded from 3.13 to 4.1 and kept baseband intact 05.12.01.
Im hoping I can go up again and keep unlock.

Any help would be greatly appreciated

 

[iDonev]

1. Open Cydia and let the home page load.
2. Look at the top bar and see if 4.3 one of the SHSH files listed - most likely it will be.
3. Download sn0wbreeze from ih8sn0w.com.
4. Search online/YouTube for a tutorial on how to use sn0wbreeze.
5. Feel free to ask additional questions.

 

[jking79]

Hi IDONEV

Thanks for your reply.

From reviewing snowbreeze seems i could do custom firmaware on 5.1 and still have unlock.
Sorry if questions seem noob but i mess up and I have no phone

 

[iDonev]

As long as you have the required blobs in Cydia - yes.

 

[jking79]

Hi iDonev

So I got error 3194 tried everything advised online to solve nothing worked.
I dont understand "required blobs in Cydia" I haven't explored this much .
Can you advise is this a back i should have done or what am i missing in the steps?

 

[jking79]

I had two resolutions for error 3194

Alter the hosts file: I tried many advised variations of this and none worked

Use tiny umbrella to make changes : Again this didn't work

Appreciate your patience here, must be a way to get around 3194 error but I cant seem to sort it

 

[iDonev]

If you have the 5.0.1 or 5.1.1 SHSH saved, I'd suggest you go with either version (they're the ones I've used)

- Open the hosts file with Administrator privileges in a text editor (Notepad, etc).

- Add the following line to the very bottom of the hosts file:
74.208.105.171 gs.apple.com

- Save the hosts file, and close it.
- Connect your iDevice to the computer.

- Launch TinyUmbrella
--Click "Advanced", and Check the "Request shsh from Cydia" box
--Click on your iDevice (in the top left)
--Click "Save SHSH"
--Once iOS 5.0 GM (9A344)(whichever iOS version you decide) appears in the "General" tab, click "Start TSS Server"

- Launch iTunes
- Restore or Update as normal!!!

Credit goes to kadizzle90104 from ifans.com

 

[jking79]

all sorted now unlocked on 5.1 really appreciate you help idonev wouldn't have got sorted without you

 

[iDonev]

Glad I could help

 

[halojereme]

Alter the hosts file: I tried many advised variations of this and none worked