0
votes
0answers
10 views

iPhone 5S showing SIM invalid [duplicate]

My brother brought me iPhone 5S from UK, It was given without any sim and it was working fine, until I restore it following restore iOS device to factory settings page, now I can't activate device, ...
0
votes
0answers
96 views

Locked iPhone 5 AT&T works on Tmobile network

Hope this question is in the right location. I recently switched from AT&T to Tmobile. I put in a request with AT&T to unlock an iPhone 5 under my family plan and was deined due to the ...
0
votes
1answer
17k views

Sim Not valid when activating my iPhone

I have a unlocked iPhone 4 or at least that's what I've been told when i bought it. But then I went ahead to unlock it again, when I put a SIM card in, it says no service or at least i hope that's ...
0
votes
1answer
238 views

Can I use the T-mobile contract free iPhone 5S with my AT&T number?

I am thinking of purchasing the contract-free 5S because my contract with AT&T just expired, and I will only need the phone in the US for a few more months. Will I be able to use my AT&T sim ...
0
votes
0answers
20 views

How can I check if an iphone is sim unlocked already? [duplicate]

For the iPhone 4S and 5, is it possible to easily check if they are sim unlocked ? If so how ? I've already seen this question but sounds a bit more complicated than I hoped. What's the simplest ...
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 ...
1
vote
2answers
17k views

Can I use an iPhone 4 on Straight Talk?

I have an iPhone 4 that's currently on AT&T. My 2-year contract will be fulfilled in January, and at that point (if possible) I'd like to switch my service to Straight Talk or some other less ...
-1
votes
1answer
861 views

Are there any cons to buying a used iPhone 4S unlocked by a Gevey sim?

In comparison to a factory unlocked iPhone, are there any cons to buying a used iPhone 4S unlocked by a Gevey sim?
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
3k views

Can I use an unlocked AT&T iPhone 4 with european sim cards?

Moving to Austria in two weeks. AT&T is going to unlock my phone for me before I leave since my contract is in good standing with them. Will I be able to use my iPhone 4 with European carrier sim ...
0
votes
1answer
1k views

How can I remove a sim lock when I'm no longer an Orange France customer?

I bought an iPhone 4 in France. When moving to Belgium, I've put a belgian SIM card but I noticed that the phone is SIMLOCKED. I contacted the person who sold it to me and explained everything. He ...
1
vote
3answers
2k views

Getting an unlocked iPhone 4/4S to work on T-Mobile

There are several aspects I'm not clear on, and I'm wondering if what I want is even possible. 1) I want an unlocked (officially; no jail-breaking) iPhone 4/iPhone 4S. The iPhone 4 unlocked is ...
0
votes
1answer
558 views

iPhone 4, only emergency calls

I bought new Neverlock (sim free) iPhone 4 with 4.3.5 firmware. Then I would like to return it to factory settings and click "Restore" in iTunes. But after restoring i received unlocking device with ...
1
vote
1answer
891 views

iphone jailbreak - its asking for active sim card

i'm in china and need to jailbreak/unlock my iphone to use it here with chinese sim card. I followed the instructions online about how to do this using a program called snowbreeze. It worked and i ...