expert mode

The SIM Card editor was implemented for diagnostic purposes and for the test of several non public functions of SIM Cards. It is intended for use by professionals only, who are perfectly familiar with the contents of the GSM specification 11.11.

Please be aware that the use of write commands and commands such as lock file and unlock file will damage or destroy a SIM card if not properly used. You must only use the functions if you are authorized to do so and if you are familiar with the proper use of the functions.

Any liability for damages to SIM cards by the manufacturer or vendor of this product are explicitly ruled out.

With this option you have total control of the SIM card, care must be taken when using this option as you may easily destroy your SIM card by writing the wrong data to the card.


The Drop Down Menu allows you to specify any file of the SIM-Card. By selecting a new file, a read command to the specified file is automatically performed.


The fields file info and access rights contain specific data about the selected file. More detailed information about this topic can be found in the GSM specification 11.11.


The edit field displays the actual data of the selected file. Data can be directly modified and written to the card using the Card - write file command.

Advanced User Edition allows viewing and editing of all system parameters supported by the SIM Card. (Some of the parameters cannot be edited as they are hard programmed into the SIM card)

  • PIN's & PUK's
  • SIM Service Table
  • Serial Number Preferred Language
  • Preferred Service Provider (roaming features)
  • Dialing Numbers Groups and extensions
  • SMS, Messages and status
  • Preferred Net Services
  • Ciphering key / Admin Key
  • Broadcast Control Channel
  • Location Information
  • IMSI
  • FPLMN forbidden PLMN's
  • Charge Limits
  • Charge Counters

Consult the GSM specification 11.11 for more information on the data structure of GSM cards.