0
votes
3answers
1k views

How can I update and jailbreak/unlock my iPhone 3Gs from 4.1 to 6.1.3?

I have an iPhone 3Gs running iOS 4.1 (baseband 06.15.00, serial number: 8704244TEDG). I want to update it to iOS 6.1.3 instead of iOS 7. How can I update it, and unlock it using Ultrasn0w after ...
1
vote
2answers
158 views

Is it possibe to upgrade and re-jailbreak (in order to unlock) a 3Gs running on 4.1?

I have a locked 3Gs running 4.1 and it's pretty annoying not be able to install anything on it anymore (most apps nowadays require at least 4.3) I can not unlock it officially because i bought second ...
0
votes
2answers
3k views

I tried updating my iPhone, but now it says “SIM is invalid”

I have an iPhone 3GS 32GB. I have just tried updating the phone using iTunes. The phone is second hand, and was unlocked when I bought it. I didn't know that when you try to update it, it loses ...
2
votes
2answers
2k views

How can I find out what carrier an iPhone 3gs is locked to?

I'm trying to activate an old 3gs but am unsure of what carrier it is on. I don't really want to go testing all the sim cards I can find to see if I luck out. Does anyone know of a way to find out? ...
1
vote
1answer
338 views

iPhone 3GS Upgrade/Jailbreak/Unlock Help

I have a jailbroken iPhone 3GS running iOS 5.0.1 with baseband/bootrom 05.16.02. I want to upgrade to iOS 5.1.1 but also make my device unlockable. With that baseband, however, I can no longer ...
0
votes
1answer
364 views

Will I be able to use an unlocked AT&T iPhone 3GS with European carriers?

Moving to Austria in two weeks. I have an iPhone 3GS that has been unlocked by AT&T. Will I be able to use my iPhone 3GS with European carrier sim cards once I get there?
0
votes
1answer
558 views

Unbrick iPhone 3GS?

I have an iPhone 3GS running iOS 5 and baseband 5.16. After reading various blog posts and threads, I was told that in order to unlock it, I had to first upgrade it to the iPad baseband (6.15) and ...
3
votes
4answers
400 views

Has anyone actually gotten AT&T to unlock an iPhone?

We're going to be moving to Germany in a few weeks, so I visited AT&T today and asked them to unlock our phones. They unlocked my Android device, but told me that "Apple did not give [them] the ...
2
votes
2answers
5k views

How to unlock an iPhone 3GS with 05.16.05?

I had a perfectly working unlocked and jailbroken iPhone 3GS, but of course I had to go ahead and try to get iOS 5 on it. I didn't know I need to preserve my baseband while updating it, so now ...
0
votes
1answer
363 views

How can I upgrade my jailbroken and unlocked iPhone 3GS to 4.2?

I have an iPhone 3GS running on 4.0.1 and I want to upgrade it to 4.2 with my Mac. How can I go about doing this? Current Version: 4.0.1 (8A306) Model: MB7... Modem Firmware: 05.13.04