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.Philips Genie Secrets (also work on other models)
View the IMEI
*#06#
Status register
*#2254*#
Activate and deactivate the "DEBUG CALL"-Mode
*#2255*#
Time you are connected to the network
*#2558*#
Phone reconnects to the network
*#2562*#
Warm start
*#2565*#
(NO) BLOCKING - list (15 items)
*#3333*#
Init, Flags, SIM LOCK
*#3377*#
Reset the (NO) BLOCKING - list
*#3353*#
Name, Length, SIM phase
*#7378*#
SECURITY CODE
*#7489*#
Activate and deactivate the SLEEP MODE
*#7693*#
SPURIOUS INTERRUPT
*#7787*#
Activate the beep signal when the phone is reconnected to the network
*#2337*#Samsung SGH-600 Secrets (also work on other models)
Show IMEI
*#06#
Show Software Version
*#9999#
Show Software Version (instructions)
*#0837#
Show Serial Parameters
*#0001#
Activates the smiley when charging
*#9125#
Battery status (capacity, voltage, temperature)
*#9998*228#
Program status
*#9998*246#
Change Alarm Buzzer Frequency
*#9998*289#
Debug screens
*#9998*324#
Watchdog
*#9998*364#
EEPROM Error Stack - Use side keys to select values. Cancel and ok.
*#9998*377#
Trace Watchdog
*#9998*427#
Change LCD contrast
*#9998*523#
Jig detect
*#9998*544#
Memory status
*#9998*636#
SIM File Size
*#9998*746#
SIM Service Table
*#9998*778#
RTK (Run Time Kernel) errors
*#9998*785#
Run, Last UP, Last DOWN
*#9998*786#
Software Version
*#9998*837#
Test Vibrator - Flash the screenligth during 10 seconds and vibration activated
*#9998*842#
Vocoder Reg - Normal, Earphone or car kit can be selected
*#9998*862#
Diag
*#9998*872#
Reset On Fatal Error
*#9998*947#
Last/Chk
*#9998*999#
Yann debug screen
*#9998*9266#
Software version
*#9998*9999#
Changes serial parameters (s=?, f=0,1, t=0,1)
*0001*s*f*t#Sony CMDZ1 Secrets (also work on other models)
View IMEI
*#06#
Show Software version and manufacture date
# 8377466 #
Alcatel One Touch Secrets
View IMEI Number
*#06#
Enter Service Menu
*#000000#
View Secret Menu
000000 then press *
Sagem RC712 Secrets (also work on other models)
Enter Engineering menu
MENU - 5 - 1 - 1 - #
1) IMEI
2) Flash Eprom etc.
3) ?
4) SP unblock
5) ?
6) Contrast Settings.
When in menu type * and a new menu with new options will appear.Siemens S1 Secrets (also work on other models)
Show IMEI
*#06#
Tetris
Power on phone and enter PIN. before phone has locked onto network, F9, send own number, hit right button, hit 9. left is 2, right is 8, rotate is 5,
and drop is 4.
Monitor Mode
Menu, 9 (Phone Options), 7 (Phone Status), Left Display Button (left MENU key), 5553756, HangUp Button (Red HandSet key)
Now "Monitor" should appear at the bottom of the Network Options menu.
Pressing the right Display Button when in monitor mode will show a list of the
six cells with the strongest signals.Trium MTD30 Secrets (also work on other models)
Monitor mode
Hold C and press 379
Secret menu
Hold C and press 987
Version number
Hold C and press 597
Phase1 and 2
Hold C and press 499
Warm start
Hold C and press 179
Instant turn off
Hold C and press 999
Unlock menu
Hold C and press 787090Bosch 718 (also work on other models)
Secret Engineering menu (menu 10) appear
*#3262255*8378#
Display the IMEI
*#06#
To set the language automatically (Reset to English)
*#0000#
Set the Enhaced Full Rate
*#3370#
Reset the phone
#3370#
Enter sim lock code
*#9000#
Enter the network code
*#9003#
Enter the subset code
*#9004#
Remove the sim lock permanently
*#9100#
Remove the corporate lock permanently
*#9101#
Remove the provider lock permanently
*#9102#
Remove the network lock permanently
*#9103#
Remove the subset lock permanently
*#9104#

Bosch 738 (also work on other models)
Secret Engineering menu (menu 10) appear
*#3262255*8378#
Display the IMEI
*#06#
To set the language automatically (Reset to English)
*#0000#
Set the Enhaced Full Rate
*#3370#
Reset the phone
#3370#
Enter sim lock code
*#9000#
Enter the network code
*#9003#
Enter the subset code
*#9004#
Remove the sim lock permanently
*#9100#
Remove the corporate lock permanently
*#9101#
Remove the provider lock permanently
*#9102#
Remove the network lock permanently
*#9103#
Remove the subset lock permanently
*#9104#

Bosch COM607 (also work on other models)
Secret Engineering menu (menu 10) appear
*#3262255*8378#
Display the IMEI
*#06#
To set the language automatically (Reset to English)
*#0000#
Set the Enhaced Full Rate
*#3370#
Reset the phone
#3370#
Enter sim lock code
*#9000#
Enter the network code
*#9003#
Enter the subset code
*#9004#
Remove the sim lock permanently
*#9100#
Remove the corporate lock permanently
*#9101#
Remove the provider lock permanently
*#9102#
Remove the network lock permanently
*#9103#
Remove the subset lock permanently
*#9104#

Bosch 908 (also work on other models)
Secret Engineering menu (menu 10) appear
*#3262255*8378#
Display the IMEI
*#06#
To set the language automatically (Reset to English)
*#0000#
Set the Enhaced Full Rate
*#3370#
Reset the phone
#3370#
Enter sim lock code
*#9000#
Enter the network code
*#9003#
Enter the subset code
*#9004#
Remove the sim lock permanently
*#9100#
Remove the corporate lock permanently
*#9101#
Remove the provider lock permanently
*#9102#
Remove the network lock permanently
*#9103#
Remove the subset lock permanently
*#9104#

Bosch 909/909s (also work on other models)
Display the IMEI
*#06#
Set the language automatically
*#0000#
Set the Enhanced Full Rate
*#3370#
Reset the phone
#3370#
Enter sim lock code
*#9000#
Enter the network code
*#9003#
Enter the subset code
*#9004#
Remove the sim lock permanently
*#9100#
Remove the corporate lock permanently
*#9101#
Remove the provider lock permanently
*#9102#
Remove the network lock permanently
*#9103#
Remove the subset lock permanently
*#9104#Ericsson 688 Secrets (also work on other models)
Check the IMEI (International Mobile Equipment Identity)
*#06#
Reset the phones menu-language to English.
*#0000#
Check the software release information
>*<<*<* Shortcut for Last Dialed call menu If you for some reason don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key stroke instead: First '0' then '#'. Bat. level indicator when turned OFF... When the gh688 is turned off and the phone is not changing - the bat. level can be seen for a short period of time by pressing the 'NO' key quick once (it has to be quick!) and then wait for about 2 sec. The bat. level will now be shown in the display at its normal position. Access menu without Sim card To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?, Mail, Phone book. NOTE: If you try this on the GH688 your phone may stop at Keylock On? menu and you´ll have to take your battery out to turn the phone on again. Full Network Name You can see the Full Network Name by doing the following: Go to the network menu, when the phone displays the networks available (in 'Select net' and 'Edit list' menu) you can press * and you will see the full name. Full Operator List You can view the full operator list by doing the following: Go to the 'Edit list' menu under 'networks'. The phone say 'please wait' (searching for other networks). When finished, Press the <> keys.
How to enable net monitor on Ericson 688
1. Remove SIM from phone
2. Dial 112, press YES, hear something,
3. Dial 112YESNO
4. Press <>Ericsson 628 Secrets (also work on other models)
Check the IMEI (International Mobile Equipment Identity)
*#06#
Reset the phones menu-language to English.
*#0000#
To see the time and date
*#103#
Check the software release information
>*<<*<* Shortcut for Last Dialed call menu If for some reason you don't want to enter the 'Last Dialed calls menu' by using the 'YES' key you can use the following key stroke instead: First '0' then '#'. Battery level indicator when turned OFF When the phone is turned off and the phone is not changing - the battery level can be seen for a short period of time by pressing the 'NO' key quick once (it has to be quick!) and then wait for about 2 sec. The battery level will now be shown in the display at its normal position. Access menu without Sim card To access to the menu in your phone without having a card inside do the following: type **04*0000*0000*0000# When display say "Wrong Pin" press NO and you have access to the all menus: Info, Access, Settings, Calculator, Clock, Keylock On?, Mail, Phone book. Alarm Clock Menu Go to MissedCall Empty the list Press the -> key for a second or two
The option Menu size turns up
Choose 'yes' and go from there.You can make free phone calls with GA628 (also work on other models)
NOTE: This trick has only been reported working on PREPAID GSM CARDS and in some countries and with some software versions.
The prepaid GSM SIM CARD is a kind of "SIM card" which only has a certain amount of credit on it.
Here's the trick: Dial the number normally and press YES. While "connecting" is shown on the screen, the following procedure should be carried out:
Press CLR then 0 then # and then NO (twice) so as to switch OFF the phone. You can then still speak on the phone while it is switched off but the SIM card does not record your calls which will lead to FREE phone calls in some countries.. I hope!!Motorola Flare Secrets (also work on other models)
View IMEI Number
*#06#
RBS
Activate RBS
(Note: pause means the * key held in until box appears)
To activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 1 [pause] [ok]
You now have to press the [MENU] and scroll to the 'Eng Field Options' function with the keys, and enable it.
De-activate RBS
To de-activate RBS type: [pause] [pause] [pause] 1 1 3 [pause] 0 [pause] [ok]
This only works with some versions of software.
What's the use of RBS
Get Distance From Base Station - Place a call, when it is answered, press [MENU] until 'Eng Field Option' is displayed, press [OK], select 'Active Cell', press [OK], press [MENU] until 'Time Adv xxx' appears, where xxx is a number. Multiply this number by 550, and the result is the distance from the RBS (Radio Base Station), in meters.
Get Signal Quality - press [MENU] until 'Eng Field Option' is displayed, press [OK], select 'Active Cell', press [OK], press [MENU] until 'C1' appears. This is the signal quality. If it becomes negative for longer than 5 seconds, a new cell is selected.NEC DB2000 Secrets (also work on other models)
See IMEI code
*#06#
Reset to defaults
*73738#
Show Software version
*#2820#
SP Lock info
The procedure will show if your phone is locked.
*#3210# for SIM lock info,
*#8140# for Net lock info.
SIM lock
*#4960 # - Inquiry * 4960 * password * password # (send?) to Lock
#4960* password # to Unlock
[password] is an 8 digits number
Net Lock
*#7320# - Inquiry * 7320 * password * password # to Lock.
#7320* password # to Unlock.
[password] is an 8 digits number
Net Lock 2
*#2220# - Inquiry * 2220 * password * password # to Lock
#2220* password # to Unlock
[password] is an 8 digits number
ü Subnet Lock
*#1110# - Inquiry * 1110 * password * password # to Lock
#1110* password # to Unlock [password] is an 8 digits number