Have you got a swanky new phone, you want to put your old SIM card in and you’ve realised it doesn’t fit….Or you’re pretty new to smartphones and don’t have a clue what the SIM card is or where it even goes.
If you are unaware, SIM cards are supplied by your smartphone service provider – the company that allows you to make calls, send texts and use data to go onto the internet.
SIM stands for Subscriber Identity Module.
SIM cards are effectively mini circuit boards which identify your service provider and your mobile phone number.
But as technology has advanced, the size of some SIM cards have gone down. In the UK three different types of SIM card now exist.
Standard SIM Card
The standard SIM card is the original SIM and largest of the three. Standard SIMs are mainly used on older phones.
Micro SIM card
The Micro SIM card is essentially a standard SIM card with the extra plastic around the circuit board trimmed off.
This SIM is more likely to be used for smartphones introduced from 2010 till today
Some Micro SIM cards are attached within a Standard SIM-sized unit which you can pull off. This SIM is known as a Combi SIM as you can use it for both.
Micro SIM cards measure 15x12mm.
Nano SIM card
The Nano SIM card is the most recent type of SIM card which only measures 12.3×8.8mm and are used for newer smartphones.
Where do I find the SIM card slot on my smartphone?
The hardest part of installing a SIM card can be finding where it has to go in the first place. Your phone’s instruction manual should tell you where you can find it. If it doesn’t have a manual, visit the manufacturers website.
If you’re still struggling it’s probably in one of these places:
1. Behind the battery
The majority of older phones have their SIM card slot behind the battery.
Remove the phones outer case and take the battery out. Look for an empty slot and a SIM card icon.
If it’s something like the slot above, all you have to do is lay it flat and slide it behind the small metal bar.
Ensure that your SIM card is facing down so that the circuit touches the metal pins on the phone.
2. Next to the battery
Some SIM card slots can be found near the battery, which will require you to remove your phones outer case and the battery to fit it in.
As you can see in the image above, you’re looking for a small slot where the SIM card can fit.
Make sure you push it in so that the circuit can touch the metal pins. Usually the perfectly straight part hangs out of the bottom until you put the battery back in.
3. The hidden outside slot
Some smartphones feature SIM-card slots on the outside, so there’s no need to take the back off.
However, you may need to use a small tool that looks a bit like a blunt pin to push the SIM holder out. The tool should come with your phone when you buy it.
The slot holder can be found around the edge of your smartphone like above and will have a hole.
Put the tool into the hole and the holder will pop out, allowing you to place your SIM card inside and put it back in. Just make sure you keep the tool safe.
Don’t get confused with the microSD slot
The micro SD slot is for micro SD cards which you can use to expand your smartphone’s storage capacity for pictures, apps and more. The SIM card and micro SD card have nothing to do with each other, but you may get their slots mixed up as they’re quite similar.
Usually, you’ll find a micro SD logo like below to tell you where micro SD cards go.
I’ve got the wrong SIM size for my phone – what should I do?
You can speak to your service provider and they will send you out a replacement SIM card.
Alternatively, you can do a bit of DIY and chop your SIM down to size yourself. Be careful – you don’t want to break your SIM.