Tags: sim reader

SIM Manager 3.1 overview

Version 3.1 is about to go public, this story provides details about some of the entries in the changelog.

+ improved SIM card write speed, only updated records are written
+ the .manifest file is now embedded into the program
+ notifications about missing readers can be optionally disabled
+ automatically enable and start the smart card service, if possible
+ detect ActivClient and let people disable it, for it renders the reader unusable
+ gracefully handle AT&T cards that have incomplete USIM phonebooks (no email file)
+ added support for PTT (push to talk) records available on some 3G cards
- fixed the problem of pasting contacts to FDN sections
- addressed issue of a limited number of contacts copied from Google
- Facebook deprecated their contacts API, so the feature is removed

Full story »

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Testing a Micro SIM to SIM adapter

With the advent of iPhone4, the question How to use a micro-SIM with my phone? became very popular, even though [to the best of my knowledge], there are no other phones that use a micro-SIM. Besides the iPhone4, that is.

As a person who does not own an iPhone, the only reason this captured my attention is the fact that people cannot use their micro-SIM with SIM Reader, unless they employ some clever tricks that involve paper, scissors and rock some scotch tape.

What happens when you have a curious mind, a motivation to help people, a load of old smart-cards and some expensive toys?

MicroSIM inside our prototype of MicroSIM-SIM adapter

This is etched with a laser on a sheet of plastic. Here are some other photos of experimental prototypes of our microSIM adapter:

Test versions of MicroSIM to SIM adapter

SIM-sized hole in a sheet of plastic

As soon as we're satisfied with the results, Dekart will offer free microSIM adapters with every purchase of SIM Reader.

This is what it looks like when inside our SIM card reader:

SIM reader in a hand with a MicroSIM adapter inside

Yes, you can barely see it - that is precisely the point :-)

Stay tuned!

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How to clear SIM cards

Backing up SIM cards and making copies of your contacts and SMS is the first thing you'd want to do if a SIM reader got into your hands.

However, there may be cases in which destroying data is more important than keeping them. In such cases it becomes a good idea to clear SIM card memory in order to prevent private information from getting into wrong hands. Here are a few examples:

  • A distant friend visits you, you give them an old phone of yours and a spare SIM - such that they could keep in touch. You don't want them to look through your SMS or SIM contacts.
  • The phone that you use is given to you by your employer, as you change jobs - you have to return the phone, but you don't want them to access your personal information (ex: the phone numbers of your family and friends, kept in the SIM phonebook, or the SMS you've been exchanging with your significant other).

In these circumstances, you should erase SIM card data before giving the card to anyone. This includes wiping SIM contacts, the SMS archive, the list of last dialled numbers, own numbers stored on the SIM card.

To clear SIM card memory, you have to manually go through each entry and delete it. This is a long and boring operation; besides that - there is a risk that you will accidentally miss some of the entries - simply because there are hundreds of records, and a monotonous operation that involves pressing buttons on a tiny key-pad of a mobile phone is error prone.

There is another risk - some phones do not delete the SMS, making deleted SMS recovery possible. So, when clearing a SIM card, the objectives are:

  • erase all SIM card data (not just SMS or phone-book);
  • wipe SMS, to make it impossible to restore deleted SMS;
  • automate the process, to remove the possibility of human error.

The solution to this problem is SIM Manager's Clear SIM card feature, it does all of the above in a few clicks.

SIM Manager can wipe a SIM card, removing all the personal information stored on it, without leaving a trace

Besides that, with SIM Manager you can backup SIM cards before erasing them, thus you get to keep a copy of all the sensitive information from the SIM's memory.

Take a look at this video tutorial, which describes how to clear SIM card data without leaving a trace.

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Special offer for Lazybit readers

PC/SC compliant smart card reader, compatible with SIM and USIM cards (2G, 3G), as well as CDMA and Nextel cards
  • Edit SIM phonebook
  • Backup and restore SIM cards
  • Erase SIM cards
  • Lifetime warranty
  • many other features...

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