List of secret code

Mobile : Secret Codes List
*#9125# : Smiley
*#9999# : Software Version
*#06# : IMEI Number
*#0001#  : Serial Number
*#9998*523#   : LCD Contrast
*#0228# or *#8999*228#  : Battery Info
*#8999*636#   : Display Storage Capacity
*#8999*778#   : Display SIM Card Information
*#8999*782#  : Show Date And Alarm Clock
*#8999*786#   : The Display During Warning
*#8999*837#   : Samsung Hardware Version
*#0523# - *#8999*523#   : Display Contrast
*#8999*638#   : Show Network Information
*#9998*246#   : Battery Status- Memory Capacity
*#9998*324# - *#8999*324#  : Debug Screen
*#9998*842# - *#8999*842#   : Vibration Test
*#9998*289# - *#8999*289#   : Alarm Beeper - Ringtone Test
*#8999*9266# : Display Received Channel Number And Received Intensity
*#8999*364# : Watchdog ON/OFF
*#8999*427# : WATCHDOG Signal Route Setup
*2767*3855# : Full Reset (Caution every stored data will be deleted.)
*2767*2878# : Custom Reset
*2767*927# : Wap Reset
*2767*226372# : Camera Reset (deletes photos)
*2767*688# : Reset Mobile TV
#7263867# : RAM Dump (On or Off)
#*4773# : Incremental Redundancy
#*7785# : Reset wake-up & RTK Timer Variables
#*7200# : Tone Generator Mute
#*3888# : BLUETOOTH Test Mode
#*7828# : Task Screen
#*2562# : Restarts Phone
#*2565# : No Blocking? General Defense.
#*3353# : General Defense, Code Erased.
#*3837# : Phone Hangs on White screen.
#*3849# : Restarts Phone
#*7337# : Restarts Phone (Resets Wap Settings)
#*2886# : Auto Answer ON/OFF
#*7288# : GPRS Detached/Attached
#*7287# : GPRS Attached
#*2077# : GPRS Switch
#*22671# : AMR REC START
#*22673# : Pause REC
#*22674# : Resume REC
#*22675# : AMR Playback
#*22676# : AMR Stop Play
#*22677# : Pause Play
#*22678# : Resume Play
#*77261# : PCM Rec Req
#*77262# : Stop PCM Rec
#*77263# : PCM Playback
#*77264# : PCM Stop Play
#*22679# : AMR Get Time
#*7666# : White Screen
#*7693# : Sleep Deactivate/Activate
#*2286# : Data Battery
#*2679# : Copycat Feature Active/Deactivate
#*3940# : External Loop-Test 9600 bps
#*4263# : Hands Free Mode

Enter into Engineering Mode: *#110*01#
Enter into Factory Mode: *#987#
Restore Factory Settings: *#987*99#
Check Software Version: *#900# OR *#800#
Default User Codes: 1122, 3344, 1234, 5678
Change LCD Contrast: *#369#
To Enable COM Port: *#110*01# -> Device -> Set UART -> PS Config -> UART1/115200
Codes to Change Screen Language:
*#0000# + Send : Set Default Language
*#0007# + Send : Set Language to Russian
*#0033# + Send : Set Language to French
*#0034# + Send : Set Language to Spanish
*#0039# + Send : Set Language to Italian
*#0044# + Send : Set Language to English
*#0049# + Send : Set Language to German
*#0066# + Send : Set Language to Thai
*#0084# + Send : Set Language to Vietnamese
*#0966# + Send : Set Language to Arabic
You can also give a try to following codes shared by our reader "More_C30mini":
*#002# - Full Factory Reset
*#87# or *#88# - Phone Test
*#06# - Shows IMEI of Mobile Phone
*#8375# or *#8376# - Software/Hardware Info
*#3641# - Engineer Mode (If you change hidden settings, do it wise)
*#3696# - Firmware USB Update Mode (Don't install wrong firmware)

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