Guide To Cut & Trim Micro-SIM To Make Nano-SIM


With the coming of iPhone4 the size of the normal SIM was reduced to Micro-SIM, this size of SIM has not been adopted by many phones at present but at-least some of the new models like HTC One X has started using this type of SIM. The main purpose behind reducing the thickness and of a SIM is to provide more space for the important hardware available inside the phone which can help in enhancing the user-experience.


This was one of the main reasons why Apple introduced ‘lightning’ as an 8-pin dock, they always intend to reduce the space occupied by these ‘mandatory but not so useful’ features and that is the reason now they have introduced the SIM size to Nano-SIM. The reduction in the size of a Micro-SIM was a huge difference but there was some plastic remaining at the boundary of the chip (though it was very less but still) Apple decided to go ahead with this idea and use only SIM Chip on their phones.


As you can see the screenshot mentioned above, you will only chip on a the Nano-SIM and it is comparatively much harder to create a Nano-SIM as compared to micro-SIM because only one mistake will damage your chip and then it will be spoilt. You can see the specifications of Nano-SIM in the screenshot mentioned below and you also click here to that page and read them. These standards of Nano-SIM are given by ETSI (European Telecommunication Standards Institute), which is a non-profit organization and approves the standards of all telecom related hardware.

Now let me tell you that how you can create a Nano-SIM from a micro-SIM. I will recommend you to try this on a dummy SIM and then come to the original one.

  • First of all make sure you have a length measuring device, a very sharp pair of scissors (very important) and sandpaper. Make sure that you can have a clean hand when it comes to cutting through scissors, don’t even think of making a mistake or else be prepared to get another SIM.
  • Now the acquired size of the SIM should be 12.3 mm wide, 8.8 mm high and 0.67mm thick. To decrease the width and high of the SIM cut all the plastic part from the borders of the micro-SIM.
    After removing the plastic measure the height and width of the SIM, the dimensions will almost match with + or – 0.05 inches error, but that does not matter much.
  • The difficult part comes when you are about to reduce the thickness of the SIM, the thickness problem makes me presume that like Micro-SIM converter we will be able to get a normal machine which will be able to convert Micro-SIM to Nano-SIM and so this is the only possible method which will help you.
    So, flip the SIM and rub the back side of the SIM on the sand paper and after every while keep on checking the thickness and be careful as you should not spoil the chip from back.
Create a Nano-SIM

You can take a look at video describing everything step by step. Please let us know how was your first experience making a Nano-SIM (even though if you ruined it).

About Abhinav Singh

I am an MBA student and a founder member of NXTInsight. I love to keep the track of smartphones, tablets, wearables and other similar gadgets, so that I could help my readers to make the right decision before buying a gagdet.

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