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Apple first make us use MicroSIm on their iPad, now they made its essential on iPhone 4 too. MicroSIm is a very new thing, most of US citizen dont have it yet, and none of entire planet have it. So here we have gather a how to guide to help you convert your normal SIM to MicroSIM.

This whole guide is by Vinay, he posted it on All credit goes to him.


Let us clear the confusions of Sim, Mini Sim and Micro Sim. Sim cards we are using currently are called Mini Sim or second generation of Sim and Sim card we are talking about is micro SIM or third generation Sim. First generation Sim card was as big as credit cards that’s why second generation Sim are called Mini Sim.

Note / Warning :

1. Do it at your own risk and carefully because the chip is very delicate. It will be a bit  harder to use the SIM so file the sim very delicately and try again and again.

2. The SIM you are using may differ in shape of the circuit from that used by us. Don’t worry about that and mind the circuitry gap.

3. Try with a useless SIM first.

Requirements :

A Mini SIM, Marker pen, Scale, Sharp cutter, File tool (Nail File) and some patience.IMG_0237


  1. The first step is to get a card that allows access to the UMTS network. IMG_0228
  2. With a ruler / scale take measures to cut the SIM and mark with a pen.  (12mm x 15mm)IMG_0232 IMG_0233 IMG_0234
  3. Mark the cutting line with a cutter and then bend off from same line, the plastic SIM is soft enough that it can be cut with scissors. IMG_0235
  4. Proceed to sharpen the edges of your new micro-SIM with File tool (Nail File). That’s it.


Your SIM should now fit in your iPad/iPhone 4 MicroSIM tray.


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  On July 26, 2010(5 years, 10 months ago.)

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What Do You Think?

9 Responses

  1. M-Store Says:

    micro sim adapter

    Posted on August 2nd, 2010 at 9:29 PM

  2. Vijay2pvk Says:

    If anyone in bangalore wants to convert your normal sim to microsim for iphone 4 or ipad within 5 minutes then You can call me at 9916404237 … sim conversion Rs.50

    Posted on December 19th, 2010 at 6:38 PM

  3. vijay Says:

    If anyone in bangalore wants to convert your normal sim to microsim for iphone 4 or ipad within 5 minutes then You can call me at 9916404237 … sim conversion Rs.50

    Posted on December 20th, 2010 at 7:07 AM

  4. Apps Says:

    Get your SIM card converted to Micro SIM(Ipnone 4g or I Pad) in just Rs75.

    It will take only 10 mins to convert your sim card to micro SIM card.

    No need to purchase SIM cutter or any other stuff, get your same sim card converted to micro sim in 10 min. its easy and fast.

    Contact now: 9223219080

    Service available in Powai and Vikhroli (w), LBS.

    One need to bring card to our office.

    Posted on January 20th, 2011 at 8:00 PM

  5. Liangwei99 Says:

    It looks easy to convert Normal Sim card to Micro Sim card.You can try but most likely you will spoil the sim card unless you have the right tool to do so. To save all the trouble you can spend $10 for the converting service.

    Contact: 98650711

    Posted on November 1st, 2011 at 8:28 AM

  6. Kennethbdavid Says:

    you can reach me on +2348122274172

    Posted on December 10th, 2011 at 7:44 PM

  7. Fln14_superman Says:

    Will the self-made micro-sim card also works on a Motorola Droid Razor which also supports the mini-sim version?
    Thanks alot!

    Posted on December 12th, 2011 at 10:08 PM

  8. Guest Says:

    This is ridiculous and wrong. esp instruction 2 is faulty. You will end up in over cutting your SIM.

    Posted on March 31st, 2012 at 2:58 PM

  9. Tegr Says:

    just don’t buy iphones

    Posted on April 29th, 2012 at 1:55 AM

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