Subscriber Identity Module: the chip card enabling access of a mobile device to an operator network.

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17
votes
4answers
153k views

Is it possible to use an iPhone without a SIM card as an iPod touch?

Is it possible to use an iPhone without a SIM card as an iPod touch? I have an old iPhone 3G that no longer has a SIM card and I want to use it as an iPod touch. How can I achieve this?
14
votes
1answer
43k views

How do I change the PIN on an iPhone?

A simple one, I guess: I recently bought a new (unlocked) iPhone, and at the same time changed my phone subscription to another operator. How can I set the PIN code on the new SIM card to something ...
11
votes
4answers
18k views

iPhone stuck at “No SIM card installed”

I "retired" my old iPhone 3GS when I got my shiny new iPhone 4 and I was happily using it as an iPod touch with camera and compass. However, I made the mistake of throwing away the SIM inside the ...
11
votes
3answers
28k views

What angle do I insert iPad SIM eject tool into new iPad to get the tray out?

I've found lots of videos on how to eject the SIM card holder from an iPad 2, but the location is different on the New iPad, and no matter whether to put the pin in parallel to the screen surface, or ...
8
votes
2answers
33k views

Can I use an old iPhone as a wifi-only device?

I have an AT&T (GSM) iPhone 4. If I were to upgrade to an iPhone 5, could I simply pop the SIM out of my iPhone 4 and continue using it on wifi only? Would I also need to get the SIM deactivated ...
8
votes
3answers
43k views

iPhone can send iMessages without a SIM card?

I gave my old iPhone 3GS (iOS 5.0) to a friend, and after removing the SIM card, we noticed a peculiar behavior. My friend is able to send texts via iMessage from the old phone number. Likewise, I can ...
7
votes
1answer
445 views

Using my current 3G Sim with the iPad

I'm thinking of buying an iPad at some point, the one with 3G. I also have a 3G dongle that I'm not really using at the moment and wish to use on the iPad. I understand that it's a MicroSim, and I ...
6
votes
3answers
998 views

Is it possible to activate an iPhone 4 without a SIM?

So we bought an iPhone 4 from the Apple store. But we didn't get a micro-SIM as there are no PAYG tariffs on micro-SIM available. Is there anyway to activate the device without getting hold of a SIM? ...
4
votes
1answer
827 views

Is possible to use a Micro SIM in iPhone 3GS?

I want to use my old iPhone 3GS, but don't want to pay another plan for the occasional use.
4
votes
2answers
4k views

Activate unsubsidized iPhone 5 - can I later switch carriers?

I'm living in Germany and recieved an unused iPhone 5 A1429 without SIM or contract as a gift. I'm planning to use it abroad, likely with prepaid SIM cards. The phone is not activated yet and I am ...
3
votes
4answers
59k views

Can I exchange an iPhone 4 with an iPhone 5 without getting a new SIM?

I understand that for certain iPhone models it is necessary to get a new SIM if I want to exchange them. If I have a 4S and want to exchange it with a user who has just purchased a 5, is this ...
3
votes
3answers
10k views

can you take out the iPhone's sim card and use wifi outside of america?

I'm traveling overseas and I wish I had a regular iPod touch so that I can just use WiFi to check emails without paying a roaming fee. I have an iPhone with an AT&T sim card. I was wondering if I ...
3
votes
2answers
227 views

Is it possible to put a iPad data sim card in an iPhone 5s?

I would like to purchase an iPhone 5s for data use in the US and as an international phone when overseas. Is it possible to use an iPad SIM card in the iPhone 5s to use for data only?
3
votes
3answers
1k views

Activate older iPhone without proper SIM?

I recently upgraded to the iPhone 4s from my 3gs. I do not want to sell my 3gs as I would like to keep it as a 32gb iPod essentially. When I transfered to the 4s, they swapped my regular SIM for my ...
3
votes
2answers
255 views

Where do you get the tool they use at the Genius Bar to remove SIM cards?

I was at the Genius Bar recently and the techs had a tiny tool on their loop of cables that looked like a pin with an oval-shaped loop at the top. Anyone know where to acquire this tool? I know I ...
3
votes
2answers
813 views

Iphone 3G shows 'no service' eversince I came back from Malaysia

I'm using Iphone 3g for a year exactly and have no problems at all until recently I went to Malaysia. it says 'no service' where the carrier name supposed to be. so I assume its because since I'm out ...
3
votes
1answer
189 views

Previously activated iPhone 3GS

I've just upgraded to an iPhone 4S, and I want to use my old 3GS like an iPod touch. I have updated the software using iTunes and now on iTunes it says: There is no SIM card installed in the iPhone ...
3
votes
1answer
50 views

iPhone 3 Upgrading and other similar issues

So the device in concern is the iPhone 3S. It has been jailbroken in the past and I haven't really used it since. And now I decided to upgrade it so I restore it to factory settings, except there is a ...
3
votes
4answers
1k views

Changing home network on SIM card

I have an iPhone 4S from Verizon, which they've "unlocked" for international use. I say "unlocked" in quotes because it's still restricted from US SIM cards. I'm able to use any international SIM, but ...
2
votes
2answers
7k views

Does trimmed SIM card affect iPhone 4S's signal strength?

I have just received my iPhone 4S ordered online. I don't have a microsim card that iPhone 4S would need to me to. I don't wish to pay extra to buy a micro sim card since it doesn't give much ...
2
votes
2answers
20k views

WhatsApp on iPhone: how to switch to a new phone number without losing anything?

I have a long history of chats, several groups and multiple contacts (who have me in their address books) on Whatsapp for iPhone. How can I preserve them all if I switch for a week to a new SIM card ...
2
votes
2answers
21k views

Can I use my iPhone4 without a sim card if i just updated to the lastest software?

I have an iPhone 4 that I wanted to use for my daughter to play on. I updated it to the latest software iOS 6 and it's telling me to put a SIM card in to activate it. I don't want the iPhone ...
2
votes
4answers
11k views

Moving Sim Card from One iPhone to Another

I am looking to buy an iPhone 4 from the secondary market. I currently have an iPhone 3GS. Can I just replace the sim on the new iphone with my current sim? Or is there something else that I need to ...
2
votes
5answers
5k views

No Simcard installed - iPhone 5

I've got an iPhone 5 running the latest iOS 7 version. (I don't feel like testing the first pre-released iOS 8). The iPhone randomly displays me "No sim card installed" in a pop-up and I have no ...
2
votes
1answer
17k views

How do I use iMessages without a sim card?

I recently received an iPhone 3G from a friend. She took out her SIM card, so I don't have a SIM on my iPhone. I heard that you can now text on iMessage using your email instead of a phone number. I ...
2
votes
1answer
9k views

Activating my unlocked iPhone 4S using a Friend's SIM temporarily

So I bought an unlocked iPhone 4S and im stuck at activation. I just want to get into the phone, get some apps and other stuff via Wifi. My friend has an unlocked iphone as well, can I put his SIM ...
2
votes
1answer
566 views

Are iPhone sim cards locked specifically to the iPhone hardware?

I've got an iPhone 3GS, on the UK network of O2 Can I take that sim card out, and put it into another mobile device (not iPhone) ? I don't have a spare device to try this hence asking here More ...
2
votes
2answers
191 views

Can I buy a used iPhone 5 from eBay and use it as an iPod Touch?

I'm planning on buying a second-hand iPhone 5 from eBay and then using it as an iPod Touch (when the time comes, I'd like to activate it and use it as an iPhone). I'm not sure how activation works, ...
2
votes
1answer
18k views

Where can I find the phone number of the SIM card that I have in an iPad?

Is there a way, directly on the iPad, to find out which phone number is associated to the MicroSIM which it is using? I can't find it in the menus, currently. Is there an easy way to find it ...
2
votes
1answer
477 views

What can I do with my locked iPhone?

I bought an iPhone4 from ebay, and it was marked as UNLOCKED, but in fact it was not.. After couple of emails, I gave this up, and I want to sell it. It is AT&T. The questions are: 1) What would ...
2
votes
2answers
2k views

Will the 3G SIM card from my original 2010 iPad work in the new 2012 iPad, or will I need a new SIM card?

I have the original 2010 iPad 3G, and when I purchased it I also got a SIM card for Rogers 3G data service here in Canada. Can I simply remove the 3G SIM card from my original 2010 iPad, and insert ...
2
votes
2answers
3k views

The SIM card inserted in this iPhone does not appear to be supported

I received following message after I restored my iPhone OS to 4.2: The SIM card inserted in this iPhone does not appear to be supported. How can I use my SIM?
2
votes
1answer
80 views

Can I use my brothers old SIM card that's in an iPad he gave me?

My brother just gave me his old iPad after purchasing a new one. He accidently left his SIM card in there because he got a different SIM card for his new one. I won't be able to add to my current ...
2
votes
1answer
126 views

hoow can I make and receive calls With USA and Canada by using a PBX account, Acrobits softphone, and Google chat?

I have an iPhone 4s running iOS 8, I an recently using it in the Middle East, but I would like to make and receive calls to people living in Canada and USA. I have a gmail that has an American mobile ...
2
votes
1answer
11k views

Can I put my iPhone 4 sim card into a new iPhone 4S?

I have an iPhone 4, and want to upgrade to an iPhone 4S. Can I just buy one and switch my sim card? My current iPhone is through my ex's account. I don't want him knowing I'm getting a new one. My ...
2
votes
1answer
35k views

iPhone 3GS activation error on iOS 5 upgrade - “No SIM card in phone”

I upgraded my iPhone 3GS to iOS 5 a few days ago. The upgrade went smoothly; however, I'm having trouble activating my phone. My wireless provider is O2 in the UK and my O2 SIM is in the phone, but ...
2
votes
1answer
118 views

Purchasing an iPhone 6 in the United States - Using it in the United Kingdom

I would like to purchase the new iPhone 6, but as I travel a lot between the US and the UK I have to make sure I buy a model that works well in both places. The idea is to buy an unlocked device so I ...
2
votes
4answers
122 views

Is it possible to have two phones (one of which an iPhone) on the same number without changing the SIM card?

I have always wondered whether it was possible to use the same phone number on an "emergency phone" in case the main one gets lost.
2
votes
1answer
400 views

Activate an AT&T iPhone 3GS outside of USA after iOS upgrade

I'd like to know if it's possible to activate an AT&T iPhone 3GS outside of USA. I live in Brazil and I've bought this iPhone from eBay. As it came with iOS 4.x (I don't remember the exact ...
1
vote
3answers
1k views

Does upgrading iOS change my IMEI?

Does upgrading iOS change my IMEI? I was told not by AT&T not to remove my SIM card or certain restrictions that they had placed on the iPhone, at my request, would be lifted. I want to know if ...
1
vote
3answers
23k views

Removing the sim lock *with* the code

I have iPhone 4 which currently has SIM lock. However, a law passed in my country requires my service provider to disable the lock free of charge. However, I have no idea how this is done in practice ...
1
vote
2answers
1k views

iPhone 4 no longer detects SIM card, how can I fix it?

Since 3 months I do have an iPhone 4, 3 weeks ago i started to get no SIM card installed error increasingly more frequent. Right now the phone is unusable. I went to a sales office of my mobile ...
1
vote
3answers
557 views

How can I set up a UK-based iPad with simple ongoing internet access for my grandmother?

I've just donated a secondhand iPad 2 to my grandmother, with the intent that she can use it as her first foray into email, and possibly other things, given time. She has very limited experiences with ...
1
vote
3answers
12k views

Can a normal SIM be modified to work as a nano-SIM?

I just puchased an iPhone5 and want to use my current SIM from my existing phone. Is there a way to convert my existing SIM to nano-SIM?
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 ...
1
vote
1answer
1k 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 ...
1
vote
2answers
3k views

Apple 4s Using Tracfone BYOP

I am looking into buying a used Apple 4s to use as a Tracfone through Tracfone BYOP. I want to be sure that I know my facts before investing money into this venture. Please let me know if I'm missing ...
1
vote
1answer
378 views

Using a different SIM card on iPad2 3g while travelling outside the US?

I have an iPad2 3g with at&t. Now, Will I be able to pop another SIM into it when I travel outside the US and use the data plan available in that country/service provider?? Is the iPad2 locked ...
1
vote
1answer
190 views

Is it possible for me to use my iPhone4 microsim dataplan on an iPad2?

I have the new iPad2 and am wondering if intead of buying a new microsim/connection from AT&T, I can just use the microsim from my iPhone4. Please advise. Thanks
1
vote
1answer
3k views

Does iPad 2 3G's GPS work without SIM card inserted?

I own an iPad 2 with 3G but I've not inserted SIM card and I'm not planning to unless it's really necessary to get GPS working. I was wondering if iPad 2 3G can navigate without SIM card (thru ...