Replace the SIM card of Samsung Galaxy S3

5 Parts:

Instructions

Basic Troubleshooting & Tips

Tips

Questions and Answers

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If your mobile is not locked to any network and you want to change your network, all you need to do is buy a SIM card from your new network provider, and replace it with the SIM card in your phone.

Below you will find very simple instructions on how to remove, re-insert and replace your SIM card.

1. 1
   At the back of your mobile you will see a small notch

   .

   Use this to pull off the back cover of your mobile.

   

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2. 2
   Slide your battery to the gold battery terminal and then pull up your battery

   .

   

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3. 3
   You should now be able to remove the battery from the mobile.

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4. 4
   Slide the old SIM card out of the SIM slot carefully.

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5. 5
   Then insert the new SIM card face down into the SIM card slot

   .

   

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6. 6
   Now put your battery back by lining up the gold contacts of the battery to the gold contacts of your mobile and then push back the battery back into the mobile

   .

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7. 7
   Now slide the back cover into place

   .

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When the SIM Card Does Not Fit to the SIM Slot

If your SIM card does not fit into the SIM slot, check these things before trying anything else:

1. 1
   Check for impurities in the SIM slot

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   Any impurities on the SIM slot like dirt or a lump of dust will clog the slot. The SIM slot is designed for the SIM card to fit perfectly. The allowance is minimal, so if there is dirt on your SIM card slot, it may prevent the SIM from being fully inserted.

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2. 2
   Check if the SIM card or the SIM slot has any dents or damage

   .

   Any dents or damage on the SIM card or the SIM slot will prevent the SIM card to fit properly. Make sure that your SIM card and SIM slot are in perfect physical condition.

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3. 3
   Check if you are using a supported SIM card

   .

   Make sure that you are using a micro-SIM card. Galaxy Note2 uses a micro-SIM card, the type that is smaller than the regular-sized SIM cards. Regular SIM Cards will not fit into the slot, as they are larger than the micro-sized ones, thus the slots intended for them are larger as well.

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4. 4
   Check that you've inserted the SIM card in the right position

   .

   Your SIM card slot is designed to accept micro-SIM cards that are inserted in the correct position. See to it that you insert your SIM card based on the illustrations in this article, with the SIM's copper terminals facing down.

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When the SIM Card Fits But the Phone Does Not Recognize it

1. 1
   Check for any dirt on the SIM card and the SIM card slot's terminals

   .

   Any dirt or dust on either of the copper terminals will cause a connectivity issue on the SIM card and the SIM card reader on the phone. Some data may not be transmitted due to impurities on the terminals.

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2. 2
   Make sure your SIM card is not damaged

   .

   Your device will not recognize a damaged SIM card. To check if the SIM card s working well, insert it into another phone that supports the SIM card's network.

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3. 3
   Remove and reinsert the SIM card

   .

   The SIM card may not have been fully or properly inserted. Remove the SIM card and reinsert it, this time making sure that the card has been properly inserted into the slot.

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4. 4
   Check if your phone is allowed to use your SIM's network

   .

   If your phone is locked, make sure that it is locked to the same network as your SIM card. When locked to a specific carrier, your Note2 will only accept SIM cards from that network. SIM cards on different networks will not be recognized. If this is your case, find a cell phone unlocking service from a reputable service center.

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On the Samsung Galaxy S3 for Sprint, they don't have a SIM card tray in their devices, while a Verizon device does come with a tray to insert a SIM card. There hasn't been a reason given for this, but it's an issue people are having with their device.

===I will switch while overseas to a new phone provider. Do I need to do a backup (data, system.etc)? If so, can you recommend a utility?===

If you're going to use the same device, you do not need to do a backup. Switching carriers will not remove any of your data. However, if you're switching to another device for your new carrier, making a backup will allow you to transfer your data from you old phone, to your new phone.

Hi, someone sold me a Galaxy 3 and I noticed on the side, there is a place to insert a SIM card. When I checked it out, I saw there was already a white card in the slot that is very difficult to remove.

My question is: Does that SIM card come with the phone or did the seller leave it in there?

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I have had an S3 since July 2013. I have always had difficulty with battery life, even though I only use my phone for calls, texts, checking email and occasionally I Google something. In the beginning, I could get 8-9 hrs of battery life as long as I turned off mobile data and used all the power conservation measures the BB techs and others told me about. I've gotten by so far, but in the last 4-5 days, my battery only lasts only about 6 hrs, even when I do absolutely nothing on my phone after charging it. BB says they can replace it but I want to make sure I know how to transfer all my pictures and contacts before I have them get me a new one.

I am told my phone (through Sprint) does not have an SD card so what should I do?

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See more questions like this: Forgot lock screen pin for my old GS3

How do I remove the SIM card?I don't see how to grab it or move it in any way?

I want to use this card in another phone, but I cannot get it out. I see no way to remove it.

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If you have problems with any of the steps in this article, please ask a question for more help, or post in the comments section below.

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