Problems are bound to occur as long as you use mobile phones.
There could be times when you may need to troubleshoot / diagnose your mobile phone or Android Smartphone when there are problems such as Slow Performance, Audio Problems, or Display Problems or any other such Hardware or Software Problems.
Mobile Phone Secret Codes To Diagnose problems
- iPhone – 3001#12345# * – This will display “Field Test” on your iPhone where you can easily test each part of the phone’s functions.
- BlackBerry: TEST
- HTC: *#*#3423#*#*
- LG: 2945#*# or 2945*#01*#
- Motorola: ##7764726
- Nokia: ##3282
- Samsung: * #0011#
- Sony: 904059+>
| *#*#0*#*#* | LCD Test |
| *#*#0673#*#* OR *#*#0289#*#* | Melody Test |
| *#*#0283#*#* | Packet Loop Back |
| *#*#0842#*#* | Vibrator and Back light Test |
| *#*#2663#*#* | Touch Screen Version |
| *#*#2664#*#* | Touch Screen Test |
| *#*#0588#*#* | Proximity Sensor Test |
| *#*#3264#*#* | RAM Version |
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)
Secret code to Factory Reset any Android Mobile Phone. This code will reset and remove following data:
Google account settings stored in the phone
System and application data and settings
All Downloaded applications
This code will not format or erase following:
Current system software and bundled applications
Files and data stored in the external SD card.
*2767*3855#
Secret code to factory format any Android mobile phone. It will format and remove all data, files and settings of the mobile phone and the internal memory. It will also reinstall the phone firmware.
This is a very risky secret code and must be used very wisely only when required or when no other option is left. Once this code is given, the operation cannot be stopped. It may be stopped by removing the battery but it may cause other troubles.
*#*#34971539#*#*
Secret code to get information about camera of the mobile phone. When this code is given, following menus will appear on the screen:
Update camera firmware in image
Update camera firmware in SD card
Get camera firmware version
Get firmware update count
Select the required menu for related information. It is suggested not to use the first menu to update camera firmware or the camera might stop working.
*#*#7594#*#*
This secret code is used to change the “End Call / Power” button option.
*#*#273283*255*663282*#*#*
This code will open a File copy screen to backup media files like videos, music and sound, photos / images etc.
*#*#197328640#*#*
This code is used to enter into service mode to run different tests and change settings.
WLAN, GPS and Bluetooth Secret Codes
*#*#232339#*#*
OR
*#*#526#*#*
OR
*#*#528#*#*
WLAN Test
*#*#232338#*#*
Displays WiFi MAC Address
*#*#1472365#*#*
OR
*#*#1575#*#*
GPS Test
*#*#232331#*#*
Bluetooth Test
*#*#232337#*#
To Display Bluetooth Device Address
*#*#8255#*#*
To launch GTalk Service Monitor.
Useful Secret Codes for Factory Tests
*#*#0*#*#*
LCD Test
*#*#0673#*#*
OR
*#*#0289#*#*
Melody Test
*#*#0283#*#*
Packet Loop Back
*#*#0842#*#*
Vibrator and Back light Test
*#*#2663#*#*
touchscreen Version
*#*#2664#*#*
Touch Screen Test
*#*#0588#*#*
proximity sensor Test
*#*#3264#*#*
RAM Version
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