Sony Ericsson T300
Silent Mode - When On Standby mode Keep on pressing the "C" button for around 2-3 seconds. Then a menu will pop up with the title Standby Menu. Now you could press 1 to turn on silent press 2 to lock keypad.
Volume Adjust - During a call is in progress you could Move the Volume slider Up & Down to adjust the volume.
Service Menu - R*L,L*L*
Check IMEI - *#06#
Call List - When on Standby press the Yes key, this will pop up the Call list.
Zoom (+)(-) - While taking pictures using the MCA 25 Communicam, You may move the joystick on the the Right to Zoom in, Move the joystick to Zoom out.
Status Information - Standby mode, move the Volume slider to view the Status Information.
Activate Infrared
Press the Menu key and Press 3. This'll activate Infrared.
Access Mobile Internet Sites
Press the Menu Key and Press 4. This'll take you to your homepage.
Sony Ericsson T610
Call Voice Mail
Press 1
Recieving Calls
Press the Yes key or an alternative Joystick.
Word Editing
When Typing SMS to edit a word press the More Key. This is valid when using predictive text input.
Key Pad Lock
Press the More key then the * key to lock & unlock the keypad.
Phone Status
Press the Volume key to findout about the status of your phone.
Activate Infrared & Bluetooth
Press the More key and scroll down and press the On Infrared or On Bluetooth to make the ideal actions.
Silent Mode
Press the More Key and scroll to On the Silent Mode.
Post Note
When in Standby press More Key scroll down to New Note in the menu and then select it.
Delay Timer
When in Camera press the More key & select the Self-Timer
W850 light effects trick
"Try this trick!! It'll make the W850i light effect lasting even the keypad is locked!!
1. Play a song.
2. Push ur slider up then down to enable the auto-keypad lock.
3. The handphone light will begin to off
4. Press the "c" button for about 5 secs just after the light is off and before the "sleep mode clock" appear
5. yeah...the light effect while playing song will long lasting!"
I can confim that it works song after song in a playlist / queue, provided that you don't stop the playback. If you unlock the phone and stop the song that is playing the procedure has to be repeated.
It's not a bad thing, but it certainly reduces battery life.