Your favorite Apple, iPhone, iPad, iOS, Jailbreak, and Cydia site.
3G[S] Downgradingforums, a part of the
Jailbreak / Downgrading / Upgradingsection;
Hi all, I have a jailbroken 3G on version 3.1.3 Baseband version 05.12.01 Most of the apps coming out now require 4.0 or 4.2.1 as a minimum so I would...
01-17-2012, 01:37 PM #13G jailbreak and carrier unlock help please.
I have a jailbroken 3G on version 3.1.3 Baseband version 05.12.01
Most of the apps coming out now require 4.0 or 4.2.1 as a minimum so I would like to update to 4.2.1.
Can anyone tell me if I will be able to unlock my phone to any sim if I do indeed upgrade to 4.2.1 and jail break it.
Would I need the carrier sim to unlock my 3G to any sim?
Apologies, I just realised where I posted this. In the wrong section.
Could a mod please move this topic to the correct section?
Last edited by sheffieldlad; 01-17-2012 at 01:39 PM. Reason: I'm dumb...
01-17-2012, 10:12 PM #2
Download snowbreeze 2.9 and build your custom firmware of 4.2.1 , when finished you will be ask to put iphone into pwned dfu . Once you in dfu mode, run iTunes , shift + restore to this cfw of 4.2.1. Search for Ultrasnow , install it to unlock.
01-18-2012, 01:30 AM #3
3.1.3 is the best and most stable firmware for iPhone 3G.
If you still going to update to 4.2.1 make sure you preserved Baseband either with sn0wbreeze or reds0w.
Last edited by tacoma96; 01-18-2012 at 01:59 AM.
01-18-2012, 02:38 AM #4
As I explained, I want to upgrade cos most of the apps I want to run are 4.0 or above only. Some are 4.2.1 I can't even install Twitter....
Will preserving my baseband allow me to downgrade back to my current firmware or enable me to unlock after I jailbreak 4.2.1?
Will I need the carrier aim to unlock to all sims?
01-18-2012, 06:52 AM #5
Preserving your baseband will mean that you can unlock it to any carrier using Ultrasn0w (which is in the Cydia install).
01-18-2012, 10:58 AM #6
Use sn0wbreeze to make BB preserve custom firmware if you have Windows.
If you need any help of jailbreak or unlock go to iClarified for tutorial.
01-18-2012, 04:27 PM #7
Don't need shsh for 3G fir 3.x...