First of all, i think this section belongs to better group than general thats why i think that it should be in apps themes section..
as it serves a better purpose like of apps in knowing about our phone...
So here i present you the collection of codes that work on almost all galaxy devices - importantly GRAND
credit- well i am just a geek and have found this through google
The secret codes can be used for several purposes, such getting the info of your device, resetting call counter, manage connectivity and radio, getting battery data, software and hardware version, setting up touchscreen, testing some features, changing CSC codes, and lots more
1.THE BIG QUESTION - What was the date on which my phone was manufactured ?
-Open your phone’s dialer and type the following code: *#197328640#.
-In case it does not work for you, try this one: *#*#197328640#*#* . (WELL I DIDNT GET SUCCESS IN IT
)-This will open the Service Mode menu on your Galaxy Grand.
-Select the option N. 2, that is “Version Info”.
- On the next screen, select ‘HW Version” (here HW means hardware).
-Now you will see another set of options on the next screen. Now tap on “Read CAL Date”, and bingo! You can now see the date of manufacture of your phone.
In my case, it was 20130128 i.e 28th january 2013 .
Other Secret Codes for Samsung Galaxy Devices:
*#06# Show IMEI Number
*#2222# HW Version
*#34971539# Camera Firmware settings
*#9900# Sysdump (Logfiles etc.)
*#0228# Battery diagnostics
*#7353# Function testing
*#197328640# Service Mode Menu
*2767*3855# Factory Reset (not tested)
*#34971539# Camera Firmware Menu
*#197328640# – Service mode for testing
**05***# – Execute from Emergency dial screen to unlock PUK code
*#1234# View SW Version PDA, CSC, MODEM
*#03# -- NAND Flash S/N
*#350# -- Reboot
*#0011# -- ServiceMode [1]
*#0228# -- Battery status
*#0283# -- Audio packet loopback test
*#0782# -- Real Time Clock Test
*#0842# -- Vibration Test
*#2663# -- Touchscreen FW and version
*#7284# -- Phone Utility (USB Settings) // WASNT ABLE TO UNDERSTAND-if u can please advise.
*#7353# -- Self Test (Menu of 12 tests to use)
*#7594# -- Factory mode >>>>Enable shutdown on long press
*#8888# -- Service Mode (Read FTA hw version)
*#232338# -- WLAN MAC address & PS mode
*#22558463# -- Reset Total Call Time
*#12580*369# -- Main Version (AP, CP, CSC, RF cal, HW Rev) (similar to 9999)
##NETWORK SELECTING ON NON-INDIAN FIRMWARES##
well this work on indian firmware too-- i havent tried though
1.dial *#197328640#
2.now the option no. 5 &6 are for band selection
option no.5- is for sim1
option no-6- is for sim 2
3. now choose the one in which u want to make 3g only... in my case it was sim 2.. so i chose option no.6
4. newt select wcdma band
5. now select wcdma all band
AND YOU ARE DONE
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