Nokia Secrets (may works on all models)

Check the IMEI*#06#
Check software version
*#8110#
Sim Clock Stop
*#746025625#
Warranty menu
*#92702689#
Press the following warranty code
6232 (OK) Displays the Month and Year of Manufacture
7332 (OK) Displays the date of the last repairment
7832 (OK) Displays the date where the phone was purchased
9268 (OK) Displays Serial Number
37832 (OK) Set the Purchasing Date MMYY
87267 (OK) Transfers ALL phone numbers, pictures, sounds from one phone to another
Hands Free

To continue an existing call when placing the 8110i into the hands free car kit without it dropping the call, press the Memory button just before connecting the cable and placing it in the cradle.
Display extra text in call costs feature
If your network operator doesn't offer a call costs service, you can still make use of that function to display some personalized text on the screen of your 8110i. Go to Menu, [5], [7], [1], enter PIN2-code and choose Set. Then type in the limit of the currency units you're using (if the call cost service worked, you would have to type the cost limit of the calls) and choose OK. In this case I typed 8110. Then go to the next sub menu (Menu, [5], [7], [2]), the Show costs in menu. Type in the PIN2 code again and select Currency. Type in the unit price, in this case number 1. Then type the name of the currency - you can use any string of letters and numbers 1-3 characters long. then type 2 letter then to confirm type two names beginning with one of each of the letters. Then press OK to confirm it.
Quick saving while in call
Saving numbers to memory during a call If you type a number into your phone during a call, you will lose it when the call ends. To prevent this happening just hold down Memory button -- the number will be saved (with no name) to the next available memory location.
Deleting SMS messages quickly
When reading an SMS message, instead of pressing Option, Erase to delete the message, simply press [C].
Turning lights on temporarily
If you have display lights turned off, you can turn them on by quickly pressing and releasing the power button. They will stay on as long as you are pressing button.

Silent mode temporarily
You can put your phone into silent ringing mode temporarily by pressing Menu then
.
Closing the cover without ending a call
If you press the menu key and then close the sliding cover during a call you will not end your call.



Nokia 6150 Secrets (also work on other models)


Check the IMEI
*#06#
Service menu
*#92702689#
Show software version
*#0000# or *#6110#
Sim Clock Stop
*#746025625#
Warranty menu
*#92702689#
Press the following warranty code
6232 (OK) Displays the Month and Year of Manufacture
7332 (OK) Displays the date of the last repair
7832 (OK) Displays the date where the phone was purchased
9268 (OK) Displays Serial Number
37832 (OK) Set the Purchasing Date MMYY
87267 (OK) Transfers ALL phone numbers, pictures, sounds from one phone to another

Power Button Tip


If you press the button for a short moment, the menu with the profiles is shown on the display. If you press one more time, the mobile turns itself off. You can use the up and down cursor keys to scroll and enable a different alert setting.
The 54# Tip
Type 1#, 2#........54# on the keypad (when you're not in the menu) to get the phone number used for with this key when speed dialing.
Toggle Headset and Auto settings
#1: Try Connect the pin-out 1-2 (in front from the right.) to toggle headset settings (The phone will think that you ar using a headset - "headset" is displayed in the LCD)
#2:Try Connect the pin-out 2-3 (in front from the right.) to toggle auto settings (The phone will think that you are using it in the car - "auto" is displayed in the LCD)
Call Menu
(In a call) you can press and hold down the menu button for 3 sec. and a menu appears. (transfer, mute etc.)
Quick SMS Typing
When typing SMS messages, you have to wait some seconds before you can type the next letter if it is in the same button than the previous one. For example try to write the word "letter", you have to wait before you can enter the second "t". A much faster solution is to press the # button twice and then the letter "t".
The Reboot Trick
1. Go to calendar ( menu - 8 )
2. Make note / reminder
3. Enter some text into the edit box
4. Hold clear until whole text is cleared, then press back
5. Press 0. Main screen is shown but a space appears on the screen. You can't see it of course.
6. Enter 4 digits ( 1234 for example )
7. Use the down arrow to move the cursor to the left side of the numbers and the space (2 times down arrow)
8. Now enter 6 digits and press the green "Call button".
9. Wait some seconds..the phone will now flash the background light and finally reboot.