Q&A for How to Switch SIM Cards

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Question

What do I do if my phone suddenly won't recognize my SIM card which is still in the phone?

Community Answer

Your phone's SIM connectors may not be making contact with your SIM card. Try removing the SIM card and cleaning the gold contacts with a pencil eraser.

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Question

Can I take a SIM card out of an old phone and put it into a new one if they are the same kind of phone?

Community Answer

I did it for my iphone 5C to 5S and it worked. It took about 30 seconds, and I used the paper clip method to eject the card.

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Question

Why doesn't the sim card from my iPhone 4S fit into my new iPhone 6?

Community Answer

There are 3 sizes of sim cards - standard (the largest), micro (or mini), and nano. Different models of iPhone and Android take different sizes. The good news is that the actual chip in the sim card is the same size, so if you have a steady hand and some sharp scissors or an exacto knife, you can trim either of the larger sizes down so they fit in a phone that takes a smaller sim. Unfortunately, there is no way to go from smaller to larger, but that isn't usually an issue since newer models tend to take the smaller cards.

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Question

Will changing my Android SIM card cause a factory reset?

Community Answer

I have read that there may be some loss of data when a new SIM card is inserted, so to be safe, you should always back up your data prior to removing and replacing your SIM card.

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Question

How do I insert a second SIM into my Android phone?

Community Answer

Take the back of your phone off and insert the SIM card in the available slot. It's usually next to the existing SIM card.

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Question

How do I unlock a pattern that I have forgotten on a Samsung J5?

Community Answer

After enough failed attempts, the phone will prompt you with an email password change to the email account the phone is synced with.

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Question

Can I put an iPhone sim card into an Android?

Community Answer

No, they use different kinds of SIM cards. You will need to go to your service provider and have them replace your SIM card.

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Question

How do I change the factory SIM card in an iPhone?

Community Answer

There is a slot on the side, which you open by poking the hole with something that will fit inside of it. The tray will pop out, and you can take out the existing card; or if there is nothing in there, put the new card into the tray.

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Question

How do I change my SIM cards with a different number?

Community Answer

You can contact your carrier for a replacement SIM and request a different phone number.

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Question

How do I transfer my phone numbers from my iPhone to my SIM card?

Community Answer

It should be automatically saved onto your SIM card. If it isn't, remove all data from it, then format it and try again.

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Question

How do I switch SIM cards if my card is different from what should go in the second phone?

Community Answer

You may have to go to an Apple or wireless carrier store, at which they have a special tool to do this.

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Question

How do I get a PUK code for my SIM card?

Community Answer

Your SIM card originally had the PUK card on a slim piece of cardboard that the SIM card was detached from. If you no longer have this, it is also printed on the SIM card itself, but you may need a magnifying glass to read it, especially if is the micro size.

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Question

Will replacing the SIM card in my phone change my phone number?

Community Answer

If you change from a sim card to another sim, yes it will change your phone number.

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Question

Can I switch SIM cards with my Verizon phone to an AT&T SIM card?

Community Answer

As long the phone is unlocked, yes. If not, contact Verizon about unlocking. The phone will be unlocked from factory if you brought it from Apple.

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Question

If I reset my sim card, is there any way to reprogram it to work in my phone again?

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Community Answer

Resetting is only deleting the information that you added. It becomes like a new sim card, ready to be used. So, resetting won't affect its working in your phone.

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