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Nokia Access Code
* # 30 #: Displays' private number 'that contact you.
* # 73 #: reset phone timers and game scores (on some phones).
* # 7780 #: Restore to factory settings (factory setting).
* # 2820 #: Bluetooth device IP address (for mobile phones that have Bluetooth).
xx #: quick access to the name / phone number in the phone book mobile phone, for example, # 20.
Off button: Pressing with short, to switch between profiles.
* 3370 #: Enable EFR (Enhanced Full Rate) Codec (not valid in the Symbian mobile phone).
# # 3370: Disable EFR Codec.
* # 4270 #: Enable Half Rate Codec.
* # 4270 #: Half Rate Codec Disable.
* # 0000 #: Displays the software version of the phone.
* # 9999 #: alternative code if * # 0000 # does not work.
* # 06 #: IMEI number Viewing (International Mobile Equipment Identity).
* # 21 #: check number of the "All Call" is used.
* # 2640 #: Displays phone security code is used.
* # 43 #: to check the status of "Call Waiting".
* # # 61: To check the number that the caller is not transferred when you answer.
* # 62 #: check number of the caller when your phone is diverted out of reach.
* # 67 #: check number of the caller when your phone is forwarded is busy.
** 21 * number #: Turning on of the "All Call" on the number required.
** 61 * number #: Turning on of the "No Reply" at the number of filled.
** 67 * number #: Turning on diversion "On Bussy" in the number of filled.
* # 67705646 #: Changing the logo operator logo on Nokia 3310 and 3330.
* # 746025625 #: Displays the SIM Clock status.
* # 7760 #: Show the manufacturer code (most of the old type of phone).
* # 92702689 #: issue: 1. Serial Number, 2. Date Made 3. Purchase Date, 4. Date of last repair, 5.Transfer user data. Exit from this mode must restart the phone (on some phones).

Sony Ericsson access code:
* # 06 #: IMEI number Viewing (International Mobile Equipment Identity).
* # 0000 #: reset the language back to English.
> * <<* <* Service Menu - displays the version of phone software. Press "Yes" repeatedly to see all of the software and press ">" to view all the text that are on the phone.
<* * <: Lock SIM Card.

Sortcuts:
1. Store the number "Missed Call" in the phone directory.
Find the "Missed Call", press "Yes" to display the number dituju. Press any number (0 to 9), then press "clear" once to block the number, then press and hold "<" until a "Store", press "Yes".

2. Hide the number.
After pressing the number that dituju and before pressing "Yes", press'> '2 times to choose "Hide Id?" And press' Yes'.

3. Battery level to check the phone when dead (off).
Press' No '1 x quickly and wait until the battery display visible.

4. Save the number in the phone memory (not SIM Card).
Follow the normal procedure to save the number. When the display to save to press' # 'and once the desired location, or press' #' 2 times to see the advanced position.

5. Contact the number of SMS messages.
Directs the cursor on the number that is written, then press "Yes".

Shortcut Picture Appearance:
(Effective on most of the Symbian mobile phone).
When viewing the image or picture in the gallery, press:
1: to rotate the image to the left.
2: to rotate the image to the right.
5 or 7: to zoom in (zoom) images.
*: To view fullscreen or non fullscreen.
Note: the above numbers can vary by phone.

Hard Reset:
Warning! All mobile phone data will be lost.
In the phone off (off), press the button at the same phone (talk), number 3, and the key * (star). Then in the third key, press the On button. Tricks is valid in most of the Nokia mobile phone.

Additional Update Nokia GSM
Nokia 21xx
Code Description
* # 06 # IMEI code
* # 3283 # Production Sunday / Month & Year
* # 9999 # Software Version

Nokia 32xx
Code Description
* # 06 # IMEI code
* # 0000 # Software Version
* # 92702689 # Service Menu
* # 746025625 # Sim Clock Stop
* 3370 # EFR active voice more clear, the battery runs out quickly.
# 3370 # EFR inactive.
* # HR 4720 on, the sound is not clear, the battery last longer.
HR # 4720 # OFF.

Nokia 51xx
Code Description
* # 06 # IMEI code
* # 0000 # Software Version
* # 92702689 # Service Menu
* 3370 # EFR active voice more clear, the battery runs out quickly.
# 3370 # EFR inactive.
* # HR 4720 on, the sound is not clear, the battery last longer.
HR # 4720 # OFF.

Nokia 61xx
Code Description
* # 06 # IMEI code
* # 0000 # Software Version
* # 92702689 # Service Menu
* 3370 # EFR active voice more clear, the battery runs out quickly.
# 3370 # EFR inactive.

Nokia 81xx
Code Description
* # 06 # IMEI code
* # 8110 # Software version, date of production & model number
* # 92702689 # Service Menu

Nokia 88xx
Code Description
* # 06 # IMEI code
* # 0000 # Software Version
* # 92702689 # Service Menu
* 3370 # EFR active voice more clear, the battery runs out quickly.
# 3370 # EFR inactive.

Nokia 90xx
Code Description
* # 06 # IMEI code
* # 6823711
58412125 # Software Version
* # 3283 # Production Date