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Here's how to trim your SIM card down for use with the iPhone 6s

With the iPhone 6s and 6s Plus now readily available to buy in the UK, there will be a number of users switching from bigger SIMs to the nano-SIM. The nano-SIM is much smaller than a regular SIM. The Nano-SIM is the same as its larger counterparts, with the only real difference being the amount of plastic that surrounds the chip. While its possible for most people to call their carrier and request a new nano-SIM for their new phone, there is a much quicker way cut it yourself.

Cutting down a SIM-card and turning it into a Nano-SIM is a good trick to know because it enables you to use your current SIM inside a new iPhone model without ordering a new SIM.

This tutorial shows you how to cut a SIM card down to size. Weve referenced the iPhone 6s and 6s Plus in the article, but the process is the same with the iPhone 5, 5s, 5c, 6 and 6 Plus too.


How to cut a SIM card to nano-SIM: Get a multi-SIM

Before we go any further, its worth mentioning that there may be an easier way than cutting the SIM card to the desired size yourself. Recently, many major UK carriers have done away with traditional SIM cards with varying sizes, and have instead replaced them with a single SIM card that can be used in any device. The new multi-SIM provides users with a standard SIM, as well as a micro SIM and a nano SIM nestled inside much like traditional Russian dolls. See the below photo to get more of an understanding of what we mean:

After doing some research online, weve found the following UK carriers provide customers with multi-SIMs although theyre named slightly differently.

EE offers multi-SIMO2 offers multi-SIMThree offers trio-SIMVodafone offers triple-SIMVirgin offers Dual SIM cards

There are benefits to using a multi-SIM apart from having to cut your SIM yourself, too. If a situation ever arises where youre using a nano SIM and need to switch to a phone that requires a micro SIM, you need only pop the nano SIM into the micro SIM frame to use it. Simple, right? Although with this being said, you could always buy a SIM adaptor kit to combat the issue if it arises.

All you need to do is call your carrier (if youre on contract) and ask them to send you out a replacement multi-SIM (or whatever its called on your network). Youll probably be without a SIM card for a day or two while one is sent, and some carriers may charge you a small amount, but we think its worth it in the long run.

Warning! Cut your SIM card down at your own riskWe have performed this trick a few times, and cut down a SIM card on a few occasions now, and it has worked in all but two instances. Thats not actually great odds. And one instance was a bit of a headache because the SIM card could no longer be used at all (not even in the original phone). Please remember that there are always risks involved with home modifications and dont cut up your SIM card unless youre happy for it not to work (in this case youll need to get a replacement from your phone manufacturers, or order a new SIM card). Proceed at your own risk.

To create a Nano-SIM you needTo cut your SIM Card down to Nano-SIM size you need the following equipment:

Standard or Micro SIM cardNano SIM card (for measurement)PencilSIM Ejector Tool (or Paperclip)Small pair of straight scissorsNail fileOnce you have all these to hand its time to get started.

Removing the Nano-SIM

Use the SIM card ejector tool (or a straightened paper clip) to open the SIM-Card slot on your iPhone 6s/6s Plus. Inside you might find a stock Nano-SIM. Youll need this. If you do not have a Nano-SIM inside your iPhone, you should borrow one from a friends iPhone to help you size up your regular SIM.

Read next: How to find the SIM number (ICCID) on your iPhone

Regular SIM vs nano-SIMHere we can see a regular SIM card (right) compared to a nano-SIM (left):

A Nano-SIM compared to a SIM card

A Nano-SIM compared to a SIM cardIt appears much smaller, and the whole of the Nano-SIM can fit inside of the metal on the regular SIM card. Because of this you might think the SIM cards use different technology. But they arent, the Nano-SIM is the same type of SIM card as the regular SIM, its just had all the excess trimmed off. Most of that excess is card but some of it is also the silicon.

Spotting SIM card guidelinesYou may see some reports online that suggest you measure the SIM card with a ruler. This used to work with the old-style Micro-SIM cards, but it doesnt work when creating a new Nano-SIM. For this you need to place a Nano-SIM over the metal of the old SIM and line it up by eye.

Some SIM cards, handily, have guide marks on the metal of the sim. These help you line up the Nano SIM on the regular SIM card and provide you with an area to cut out.

Sim card guide marks

Sim card guide marksHow to measure up your SIM cardPlace the Nano-SIM on top of the regular SIM with the cut-corner on both SIM cards in the top-right (as shown in the picture). Use the guide lines to line up the metal of the SIM card in the same central position on your SIM card. Make sure you line up the central metal part of the SIM card and not the surrounding plastic. Different SIM cards have different metal vs card dimensions, so be sure to measure aging just the metal area. You should be looking to line up the central part of the metal on your full sized SIM card.

With the Nano-SIM lined up against the regular SIM draw around the Nano-SIM (and on to the regular SIM) with a sharp pencil. This create a guideline for you to cut around. Do not worry about marking the corner, pay attention to marking the sides of the Nano-SIM accurately.

Measure up SIM card

Measure up SIM cardCutting your SIMSoftly, softly catchy monkey is the phrase you want to use here. It is better to trim back your SIM card a little bit at a time and not too much. Then use a file to filed down the edges. We usually start with the top piece of card and the sides before carefully clipping the bottom (you can also just file down the bottom).

We are using a pair of small nail scissors to cut through the SIM card. It is typically as easy to cut through the metal of the SIM card as it is the plastic card surrounding it. You can also use regular scissors but the smaller pair offer more accuracy. If you are using nail scissors be sure to use a pair that is straight and not with a slight curve. Its better to trim it slightly large and squeezed it in, rather than cut off too much and it be wiggling around inside the SIM card slot. Trim off the corner manually.

Cutting SIM Card

Cutting SIM CardMeasure into the Nano-SIM tray

Now place the cut up SIM card on top of the Nail-SIM tray from the iPhone 6s/6s Plus. It should be too large to fit into the Nano-SIM tray. This is a good thing. Now you need to trim the SIM card down bit by bit until it fits snugly into the tray. Now slide the Nano-SIM card into the iPhone.

That should be it. Turn the iPhone on and iOS should say Searching in the top-left, followed by the name of your service provider.

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