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On the main screen type in:<br />*#06# for checking the IMEI (International Mobile Equipment Identity).<br />*#7780# reset to factory settings.<br />*#67705646# This will clear the LCD display(operator logo).<br />*#0000# To view software version.<br />*#2820# Bluetooth device address.<br />*#746025625# Sim clock allowed status.<br />#pw+1234567890+1# Shows if sim have restrictions.<br />*#92702689# - takes you to a secret menu where you may find some of theinformation below:<br />1. Displays Serial Number.<br />2. Displays the Month and Year of Manufacture<br />3. Displays (if there) the date where the phone was purchased (MMYY)<br />4. Displays the date of the last repair - if found (0000)<br /><br />*#3370* - (EFR) deactivation. Phone will automatically restart. Increasebattery life by 30% because phone receives less signal from network.<br />*#4720# - Half Rate Codec activation.<br />*#4720* - Half Rate Codec deactivation. The phone will automatically restart<br />If you forgot wallet code for Nokia S60 phone, use this code reset:*#7370925538#<br />Note, your data in the wallet will be erased. Phone will ask you the lock code.Default lock code is: 12345<br />Press *#3925538# to delete the contents and code of wallet.<br />Unlock service provider: Insert sim, turn phone on and press vol up(arrow keys)for 3 seconds, should say pin code. Press C,then press * message should flash,press * again and 04*pin*pin*pin# \<br />*#7328748263373738# resets security code.<br />Default security code is 12345<br />Change closed caller group (settings >security settings>user groups) to00000 and ure phone will sound the message tone when you are near a radar speedtrap. Setting it to 500 will cause your phone 2 set off security alarms at shopexits, gr8 for practical jokes! (works with some of the Nokia phones.) Pressand hold "0" on the main screen to open wap browser. <br />
you can't just format this kind of phones if you want to do formatting it should be connected to PC using special tool to be able to format this phone but you can set full factory settings by this code *#7780# it will ask you to enter security code which is by default 12345
hope it will help you
open it up completely...where the charging socket is at the bottom use a toothbrush and some alcahol ...theres dust and fluff shorting out the pins inside ....had this problem before...if you plug in an earphone(handsfree) it should work...
this is your 10 digit master code.. keep is safe because this cant be changed, only security code can be changed. this code will work everywhr whr it asks for SECURITY CODE (ex keypad unlock with security code, reset phone to factory settings, etc.)
I tried to switch on my cell with the data cable already attached.It kept on beeping on my pc but cel did not switch on.I detached the cord and switched on my cel.It showed the nokia logo and kept switchin on and off.Later i removed the battery,replaced it back and switched it on.And BANG!!! After 5 minz it switched on!!!!!!!!
As a quick solution I can offer you to go to the setup and change current profile to general (currently the phone is set to headset profile) it should fix your current problem.
The cellular should do it automatically after you removing the headset.
you can try in the future:
1. Close and open the cellular - easy
2. update software, maybe Nokia fix that bug.