Mobile phone secrets

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Early 2009 a workmate forward me an e-mail entitled: "Cell Phone Secrets". I was naturally skeptical, but I found it interesting enough that I've summarized the e-mail here:

  1. Emergency number (112) - the emergency number worldwide for mobile is 112 - will search any network to establish contact and even work if keypad is locked.
  2. Transmits car key signals - if you lock your keys in the car and the spare keys are at home, call someone at home on their mobile phone from your cell phone. Hold your cell phone about a foot from your car door and have the person at your home press the unlock button, holding it near the mobile phone on their end - your car should unlock.
  3. Hidden battery power (*3370#) - when your battery is very low press the keys *3370# and your mobile will restart with this reserve and show 50% increase in battery. This reserve will get charged when you charge your mobile next time.
  4. Get serial number (*#06#) - get your mobile phone's unique 15 digit serial number, by keying in: *#06#. Write it down and keep it somewhere safe. When your phone gets stolen, you can phone your service provider and give them this code and they will block your handset so even if the thief changes the SIM card, your phone will be totally useless.

The truth is:

  • #1 is TRUE - although probably doesn't work in ALL countries!
  • #2 is probably FALSE - logically it can't work, but many people have posted claims it has worked for them and thus may be possible for certain keyless entry systems.
  • #3 is FALSE - for most Nokia phones this code will enable 'Enhanced Full Rate Codec' but this won't help your battery life
  • #4 is TRUE - and quite useful. :-)