Secret codes for Celkon C206
*#06# -> displays the IMEI
*2767*5282# -> Reset Millet's Java and other related
*2767*63342# -> Data Reset (deletes photos, ring tones)
*2767*927# -> Reset WAP
*#9998*4357# -> help Menu
*#9998*5282# -> Java menu (GRPS / CSD settings for JAVA server)
*#9999#0# -> Net monitor
*#9999# lub *#9998*9999# -> software Version
*#8888# lub *#9998*8888# -> hardware based version
*#9998*746# lub *#9998*0746# lub *#0746# -> SIM Information
*#9998*523# lub *#9998*0523# lub *#0523# -> Setting the LCD contrast
*#9998*842# lub *#9998*0842# lub *#0842# -> Vibration on as long as we keep "OK."
*#9998*289# lub *#9998*0289# lub *#0289# -> Buzzer on until we hold the key "OK."
*#9998*288# lub *#9998*0288# lub *#0288# -> Battery Information
*#9998*377# lub *#9998*0377# -> The error log
*#9998*778# lub *#9998*0778# lub *#0778# -> Table SIM service
*#9998*782# -> Shows the date and time when the alarm clock will ring
*#8999*638# -> Information about the network
*#9998*5646# -> Change the operator logo that shows up at the start of your
*#9998*76# -> manufacturing number
*#9998*968# -> View the available sounds for alarm
*#9998*585# -> Permanent memory phone
*#3243948# -> Digital Audio Interference Off
*#32436837# -> Digital Audio Interference
*#9999# -> software Version
*#0837# -> Shows the versions of the firmware (instructions)
*#0001# -> shows the parameters
*#9125# -> Enables additional options when charging
*#9998*228# -> Battery status (capacity, voltage, temperature)
*#9998*246# -> The program status
*#9998*324# -> debug screens
*#9998*364# -> "Chuvach"
*#9998*427# -> Trace Watchdog
*#9998*544# ->Detection jig
*#9998*636# -> Information about the memory
*#9998*785# -> Shows errors RTK (Run Time Kernel)
*#9998*786# -> Shows the date of the last turn on and the last off the phone
*#9998*837# -> Shows the software version
*#9998*872# -> diagnostic mode
*#9998*947# -> Reset
*#9998*999# -> Last/Chk
*#9998*9266# -> Yann debug screen (=Debug Screens?)
*#9998*9999# -> software Version
*2767*2878# -> Reset selected areas of the EEPROM
*2767*3855# -> Full EEPROM reset
UNIVERSAL CODE RELEASE
Insert your SIM card not acceptable, turn on the phone and enter * # 9998 * 3323 #
Press Exit. You will see a new menu. Select Malloc Fail.
In newer phones:
#*7337#