SEE ALL TYPE PHONE MODEL

SONY ERICSSON MOBILES

press >*<<*<* after doing that a hidden menu will be appear. now u can check all the service of mobile. 

You'll see phone model, software info, IMEI, configuration info, sim lock status, REAL time clock, total call time and text labels.
You can also test your phones services and hardware from this menu (main display, camera, LED/illumination, Flash LED, keyboard, earphone, speaker, microphone, radio and vibrator tests)

SAMSUNG PHONE'S MODEL

 *#92782#

LG PHONE'S MODEL

LG all models test mode:    Type 2945#*# or 2945#-*# on the main screen.
Secret menu for LG:   2945*#01*# or 2945*-#01*#

NOKIA PHONE'S MODEL

*#0000#

to see model no.