While playing a video, press '#' to switch between full screen/ normal. While viewing a photo (from My Photos) press # to switch from full screen to normal and vice- versa. While reading a text message or in the browser, use volume keys to scroll page wise, instead of line by line. Press # to read next message and * to read previous message, without going 'back' to the inbox each time. To remove operator name/ number from the main screen, go to DisplaySettings< Text Display and change text position to 'off'. To fast forward or rewind music or video while playing, press and hold left/right navigation keys, When the call starts, type # *22671 # to record. Press 'c' to exit the white info screen and to stop recording type #*22672#. Battery info: *#0228# or *# 8999*228# Software version: *#9999# *# 2255# Call List *#8999*8378# Test Menu *#8999*523# LCD Brightness *#1234# Firmware Version *#2222# H/W Version *#8999*8376263# All Versions Together Serial number: *#0001# Battery status- Memory capacity : *#9998*246# Debug screen: *#9998*324# - *# 8999*324# LCD kontrast: *#9998*523# Vibration test: *#9998*842# - *# 8999*842# Alarm beeper - Ringtone test : *# 9998*289# - *#8999*289#