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Frequently Asked Questions

Below is a list of questions which have been asked by our customers.

If your question does not appear in this list, please ask us, and we'll provide you with a
quick answer. If your question proves popular we will add it with the answer to the list.

What is USIMexplorer?

USIMexplorer is a quick, easy to use tool to read data stored on any 2G SIM or 3G USIM card. USIMexplorer not only locates and displays data, but it is able to automatically translate raw hex bytes into meaningful information according to the 3GPP TS 31.XXX specification suite.

The only hardware required is a PC/SC compatible card reader (supplied).


Why is USIMexplorer better than other tools?

Most tools on the market, which read data from SIM/USIM cards are supplied by companies who also manufacturer USIM cards. Very often, when those tools are used to work with other manufacturers' USIM product, many problems can arise - even though the (U)SIM is a standard item. Quantaq is a third party to all card manufacturers. As such, we make sure USIMexplorer operates with any SIM/USIM, no matter the manufacturer.

We believe USIMexplorer is the easiest to use of all SIM/USIM viewing/editing tools on the market. Our years of experience tells us that most people want a simple, easy to use tool, which can be used intuitively by anyone to view SIM/USIM data in seconds USIMexplorer provides that high level of user experience.

Not only that, we believe that USIMexplorer offers the best data views ever seen - clear, and accurate data translation, which also easily customised for proprietary files.

Quantaq's mission is make very powerful, but incredibly easy to use tools, and with USIMexplorer, we have fulfilled this mission once again. 

What do I need in order to use USIMexplorer?

You only require a PC running Windows NT, 2000 or XP, with an attached PC/SC compatible card reader, or free USB slot.

Quantaq supplies both the card reader and a converter module for handling mini UICC devices.

How is it possible to view the contents of a USIM file immediately, without scanning first?

After analysing many products on the market, we saw that most products required to fully scan the SIM/USIM before any of the data content could be viewed. These scans took 2 minutes or more on some tools!

Clearly, for users requiring to work with many cards, this was highly inconvenient, so we made sure USIMexplorer would locate and display the card content you wanted as soon as you wanted it.

The way USIMexplorer does this is to offer the user a template view of the file system. This appears semi-transparently to indicate that the files may or may not be present on the USIM. When the user clicks on a file, USIMexplorer immediately retrieves and displays the data content if the file exists, or removes the icon otherwise.

Of course if you prefer to have a complete scan of the entire card, file system, simply click on the 3G scan button...

How does USIMexplorer deal with proprietary files?

Many SIM/USIM cards available today have special proprietary files built into the structure. Because of their nature, these files are not specified in the global standards. Instead they are specified by the network operator or service provider.

Rather than hard coding the standards intelligence into USIMexplorer, we chose to make this information available to the user via a suite of configuration files. These are formatted text files which can be read and modified using any text editor (e.g. Windows Notepad).

Using this capability it is very easy to add in new file intelligence into USIMexplorer. This includes where the files sit in the overall file system and also the data translation of the file content.

What if the GSM specifications change?

Whenever the 3GPP specifications are updated, Quantaq free-issues updates to our customer base for the first 2 years, then by an inexpensive support agreement thereafter.

Our customers are also free to make changes themselves if they prefer.

 

Can I edit data on the USIM?

USIMexplorer is a tool to view data only.. If you wish to edit data, we recommend you purchase SIM Commander, an easy to use scripting tool for communicating with any SIM/USIM card. With this tool you can edit any data you like, provided you have met the appropriate file access conditions.


How does scanning work?

USIMexplorer knows what to look for and will if instructed perform an exhaustive scan of data on the SIM/USIM. What's more, you are not limited to the known 3GPP file structure - you can add in proprietary files to be scanned for as well.

Even better than that, you can set up any number of "user defined" scans that will, on command, scan specific sets of files. Using this approach you can reduce your scan time enormously - only scanning for what you specifically want at the time.

Can I purchase multiple licenses?

Yes. Please send us an email detailing your order requirement.

Quantaq offers a discount for any single purchase of 3 licenses or more.

Can I use USIMexplorer to check my 2G SIM profiles?

Yes, USIMexplorer will operate with both 2G SIM and 3G USIM cards.

 

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