Ady Wicaksono Daily Activities

SIM Card Filesystem

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SIM card is one of smartcard type use widely on telecomunication sector. As a smartchip which has operating system, CPU, RAM, it also has a filesystem. You need to read 3GPP TS 51.011 about Specification of the Subscriber Identity Module – Mobile Equipment (SIM – ME) interface.

Now I am going to share a picture of a filesystem on a working SIMCard, sorry some secret information is not revealed :). Moreover this picture is taken from commercial product Gemalto Card Admin.

simcard content

For each details of those file, please read the above spec

Written by adywicaksono

February 2, 2008 at 2:53 am

Posted in Mobile, SmartCard

One Response

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  1. Your articles is very interesting, you are very good on this field and i’m also intestresting this SIM/ME interface too.
    would you suggest me on how the generic SIM/ME communication and initialization precedure when ME log on to 2G/3G network?
    I try to find in internet but lots of them is about initialization of ME and Network.

    Best regards,


    June 12, 2008 at 6:41 am

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