To check the phones Software revision for Nokia Mobile. On the main screen type *#0000#
To enter in the secret menu in Nokia Phone. On the main screen type
*#92702689# [*#war0anty#]
It will take you to a secret menu where you may find some of the information below:
1. Displays Serial Number.
2. Displays the Month and Year of Manufacture
3. Displays (if there) the date where the phone was purchased (MMYY)
4. Displays the date of the last repair - if found (0000)
5. Shows life timer of phone (time passes since last start)
To restore Factory Settings for Nokia mobile *#7780# reset to factory settings.
Taking picture without getting noticed.
Turn on/off the "click" sound made by the camera by selecting the 'Silent' profile or by turning warning tones on/off.
Hiding your Mobile/ Cellphone Number
Go to: Menu > Tools > Settings > Call > Send My Caller ID > 'Yes', 'No' or 'Set By Network' to follow the default settings of your home network.
It works only with very few network who provide you facility of “Private Number”
Speed Dialing From Simcard contact (not stored in mobile phonebook) Type number followed by # then call. Example: 1# or 2# or 21#
(1) The Worldwide emergency number for Mobile Phones is 112. When you are out of coverage area merely dial 112 and the mobile will search for any existing network. This number 112 can be dialed even while the keypad is locked. That's part of the GSM standard. GSM standards accept that code to remap to the local emergency number, be it 911, 111, 999, or in our case 000.
(2) Disable your stolen phone by noting down 15 digit IMEI number previously. Press *#06# then a 15 digit code will appear on the screen. This number is unique to every handset. Note it down and keep it somewhere safe. When your cell phone gets stolen then you can call your service provider and give them unique code and they will be able to block your handset. So even if the thief replace the SIM card your phone will be totally useless. You probably won't get your phone back, but at least you know that whoever stole it can't use or sell it to others. If we all follow this then there would be no point in people stealing mobile-phones.
(3) If you lock your keys in the car and the spare keys are at home then, call someone at home on their cell phone from your cell phone. Now hold your cell phone about a foot from your car door and let the other person at your home press the unlock button on your spare keys, holding it near the phone on their end. Finally your car will be unlocked. Distance is does not matter here. You could be hundreds of miles away, and if you can reach someone who has the other "remote" for your car, you can unlock the doors.* Your car should have audio tones, or is susceptible to RF interference.
(4) Nokia Mobiles have hidden battery power which you can utilize in emergency. Suppose your cell battery is very low and you are expecting an important call even you don't have a charger. Nokia instrument comes with a reserve battery which you can be activated by pressing the keys *3370#. Your cell will restart with this reserve and the instrument will show a 50% increase in battery. This reserve will get charged when u charge your cell next time.
(5) Mobile phones should not be frequently charged, it may reduce the battery life. Always track the battery charge indicator, and carry mobile charger in purse/bag/car to avoid the contingency of battery discharge.
(6) Every mobile handset has an IMEI number (International Mobile Equipment Identity), which is a unique number and anyone can access this number by merely pressing *#06#. The mobile warranty is attached to the IMEI number, and it is also useful in the event of theft. This IMEI can be used to prevent your phone joining a phone network if the carrier has agreed to do phone blocking.
(7) The plastic cosmetic parts lose their glare and color due to heavy exposure to sun light and too much of heat so in order to avoid direct sun exposure, one must use mobile pouches, cases and covers.
(8) Always buy Mobile phone with a long "talk time". It is more efficient, with less powerful emissions.
(9) To avoid the Liquid Crystal Damage (LCD) damage always check it out that while your phone is in the purse or while you are seated it is not in the contact with any sharp/hard object.Its advisable to use pouches or mobile covers to avoid this kind of damage.
(10) It's always advisable to install anti-virus software in your MobilePC to avoid any inconveniences.
