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Archive for the ‘GSM Hacks’ Category

Secret Nokia Phone Codes (Part 1)

In GSM Hacks on May 1, 2006 at 8:48 am

If you have a Nokia mobile phone, you can enter these codes to do some nifty tricks and find information about your handset:

IMEI (International Mobile Equipment Identity) Number:

*#06#

The 15 digit number which comes up on your screen is your unique IMEI number, and comprises the following information:

  • Digits 1-6: TAC (Type approval code)
  • Digits 7-8: FAC (Final assembly code)
  • Digits 9-14: SNR (Serial number)
  • Digit 15: SP (Spare)

Software Revision Type:

*#0000#

You will see three lines of information on your screen which are comprised of the following:

  1. The phone's software version
  2. The date of the software release
  3. Phone type.

Service Menu:

*#92702689# (*#WAR0ANTY#)

You will find the following menus displayed:

  • IMEI
  • Production date (mm/yy)
  • Purchase date (mm/yy). Note that you can only enter this date once!
  • The date of last repair (0000 means that the handset has not been repaired, or at least not reported by an official service centre)
  • Transfer user data to another Nokia phone via infared, if this feature is part of the handset.

Clock Stopping:

*#746025625# (*#SIM0CLOCK#)

This checks wether your phone supports this feature. Key in again to restart the clock.

Activate EFR (Enhanced Full Rate)

*#3370#

This activates EFR which increases clarity but decreases battery life by around 5%. To deactivate, key in *#3370*.

Activate HRC (Half Rate Clarity)

*#4270#

This decreases the clarity of calls, but increases battery life. To deactivate, key in *#4270*.

More Nokia tips and tricks to be published later.

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Concerns about tracking mobile phones

In GSM Hacks, Urban Espionage on April 29, 2006 at 8:53 am


If your mobile phone is on the Vodafone network, try keying this into your mobile phone:

*#102# (then press call or send).

You should receive a message back telling you your location area code and the nearest transmitter to you. This doesn't work on all phones, but it is interesting when it does. Basically, what you have just done is what anyone with access to your mobile phone network can do at any time: find out exactly where you are.

Of course, this can be a useful feature of modern technology. Imagine your car has broken down and you're not sure where you are; certain recovery agencies can locate you from your mobile phone signal. The police can track criminals, and locate stolen handsets.

What worries me, however, is the growing number of companies offering services where an individual can track another's location through their mobile phone. Generally this is aimed at parents wanting to ensure their children's safety, or companies tracking employees. Yet a recent article in the Guardian newspaper highlights the risk that people may be abusing this facility to track people without their consent:

I can't quite believe my eyes: I knew that the police could do this, and
telecommunications companies, but not any old random person with five minutes
access to someone else's phone. I can't find anything in her mobile that could
possibly let her know that I'm checking her location. As devious systems go,
it's foolproof. I set up the website to track her at regular intervals, take a
snapshot of her whereabouts automatically, every half hour, and plot her path on
the map, so that I can view it at my leisure. It felt, I have to say,
exceedingly wrong. (Ben GoldacreWednesday February 1, 2006)

It seems that anyone with just a few minute's access to another's phone can set up this service without consent. Of course, most of these companies state that regular messages are sent to the receiptant's handset to ensure they are aware of the tracking, yet I fear such services may elicit much abuse of privacy. For example:

Your mobile phone company could make money from selling information about your
location to the companies that offer this service. (Ben Goldacre)

Or worse, you could be tracked without your knowledge by your partner, your boss, a malicious stalker… The best advice is this: if you suspect someone could be tracking you, call your service provider and ask them. By law, it should not be done without your consent.

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Free ringtones, logos and software

In GSM Hacks on January 7, 2006 at 9:09 am


These days, advertisements for mobile software is everywhere you look: magazines, tv, radio, the web… These companies make a small fortune out of convincing the general public to pay for services which they could just as easily get for free.

So…

For those of you who don't know how to get free tones, logos, wallpaper and software for your mobile phones, here is an article for you!

This is what you will need:

  1. Your mobile phone.
  2. A PC with internet access.
  3. Appropriate software for your handset. Most mobile phones come packaged with a software CD. If yours didn't, then check out the manufacturers' website, where you can usually download this for free. Alternatively, you could use Logomanager or Oxygen Phone Manager.
  4. A means of connecting our handset to your PC (data cable, bluetooth, infra-red). If you don't already have any of these accessories, then data cables are probably the cheapest option. You can pick these up on Ebay for only a few pounds. Also, these can be used to unlock your handset to other networks.

Once you have all this together, it's time to get some free software! The best way to find this is to do a Google search for "free gsm software downloads" or something like that (this is one of the best websites I've found). Alternatively visit GSM Topsitez for quick links. Get what you want and save it to your PC.

With most software, you can drag and drop files into folders on your handset. Just remember to put things in the correct folders! Games may not work if they are dropped into the ringtones folder…

And there you go: it's as simple as that. Better still, it's completely free!

In the near future, I will be setting up a website which will feature many free GSM downloads, links and the like (as well as more Kunoichi stuff!). So if anyone out there is interested, or would like to help out, then send me an email. It would be much appreciated!