Nokia 3310

The Nokia 3310 is a dual band GSM900/1800 mobile phone. Released in the fourth quarter of 2000, it replaced the massively popular Nokia 3210. This phone sold extremely well, being one of the most successful phones with 126 million pieces sold.[1] Several variants of the 3310 have been released, including the Nokia 3315, 3320, 3330, 3350, 3360, 3390 and 3395.
Design:-

The 3310 is a compact but somewhat heavy (133 g) phone featuring an 84 x 48 monochrome display. It has a lighter 115g battery variant which has fewer features; for example the 133g battery version has the start-up image of two hands touching while the 115g version doesn't. It is a slightly rounded rectangular unit that is typically held in the palm of a hand, with the buttons operated with the thumb. The blue button is the main button for selecting options, with "C" button as a "back" or "undo" button. Up and down buttons are used for navigation purposes. The on/off/profile button is a stiff black button located on the top of the phone. It has a very sturdy design which was a big contribution for its success. However, radiation is high with SAR = 0.96W/kg.
Features:-
The 3310 is known for having many features built in. These include many utilities, such as a calculator, Nokia network monitor, stop watch and a reminder function. It has four games, 'Snake II', 'Pairs II', 'Space Impact', and 'Bantumi'. It was popular for SMS because it allowed long messages three times the size of a standard SMS. The phone also has voice dialing for the quick dialling of selected numbers.
Customization:-The Nokia 3310 can be customized with interchangeable covers, and thousands of different designs have been produced by various companies. It also has over 35 ringtones built in with space for seven custom tones. These can either be downloaded, or can be composed by the user using the tone composer. The phone has different "profiles" which can adjust the phone to different sets of preferences. For example, there is silent mode where the phone will not ring when inappropriate to do so. Screensavers can be made from received picture messages. It has the option to set a reminder message that displays when it is turned on.
Codes for nokia 3310:-

1.*#06# - displays IMEI number

2.*#0000# - displays version number

3.*#92702689# (*#war0anty#) - displays usage in hrs:min:sec format

4.*3370# , #3370# - for enabling/disabling EFR quality voice mode.

5.*4720# , #4720# - for enabling/disabling HR quality voice mode.

6.*#746025625# (*#sim0clock#) - checks if the SIM clock stop can be allowed.