There are various secret codes and options inside your mobile about which you may not be aware. Here in this article, we will be talking about many such secret codes of Samsung Galaxy Grand Duos smartphone which we can use to access hidden tools and information about our phone.
Secret Codes for Samsung Galaxy Grand Duos
Here, We are going to show you how to access the internal function of Galaxy Grand Duos for testing the various hardware parts of your phone, if they are working properly or not.
With the help of this secret code you can test LCD, vibration, camera, sensor (accelerometer sensor, proximity sensor, magnetic sensor), touch screen, speaker, subkey, etc… if you have any hardware problem with your Galaxy Grand Duos you can identify with this code if it is working or not to do this follow the steps below.
First of all, open your Keypad (where you dial phone numbers)
Then dial the secret code *#0*#
Now you will get a screen with the title LCD TEST and below that you have lots of options to test various hardware parts of your phone such as speaker, sensor, LCD, etc.
- To go back use the right physical button.
- While testing the touch you have to touch and mark all the squares (the back button does not work here)
Other useful Secret Codes tested on Samsung Galaxy Grand Duos
1. *#06#
Check IMEI number of Phone
2. * #1234#
Check software version of Phone (AP, CP, CSC). Learn more HERE
3. *#12580*369#
To check Software and Hardware information (along with Date of Manufacturing)
4. *#0228#
Battery status (ADC, RSSI reading)
5. *#7353#
Quick Hardware Test (Touch, Sensors, Speaker, Ringer, Camera, etc)
6. *#2663#
Check Firmware Version of Samsung Mobile (This code will not work on Replica, so you can check if phone is Genuine or Fake)
7. *#7780#
Factory Data Reset Samsung Galaxy Grand Duos (Soft Reset)
8. *2767*3855#
Full factory reset (Don’t dial it does not ask you to confirm unless you have problem)
View Step-by-Step Guide about Factory Resetting your Samsung Galaxy Grand Duos.
Also, Check out our Full Extensive list of Samsung Mobile Codes.
Disclaimer:Â Some of these codes are intended for experienced users. Do not proceed with any option unless you know what you are doing.
Thank you very much, its great but my galaxy grand speaker got low one month back and I got repaired with samsung service but now again the same problem has accured so please share your idea.
Regards
Diwakar.
to go back using right physical button is not working how can I make it work
my grand mobile is not show install apps wts problem but iam so many times full restart but same problem plz plz plz plz replay me
my grand mobile is not show install apps wts problem but iam so many times full restart but same problem plz plz plz plz replay me
thanks!
My Samsung Grand Duos works well.But I can't use my extra SD Card ringtones in it.Can anybody say how can I do it.
some not working in my grand
Hi Thank you for the codes ..my Galaxy grand Quattro touch screen is not working some times if i want to unlock please advice
Hi Thank you for the codes ..my Galaxy grand Quattro touch screen is not working some times if i want to unlock please advice me
Create a Ringtones folder and move the ringtones in this folder then u will be able to use it.
The Secret Codes are not working in my Samsung Grand Duos.Only on one time I found them working but later not working Can anybody say how that happened and what can I do?
my grand dous back button and option key does not work.plz help
i use grand.my button back always not working properly.sometimes it back ownself so many time.how can i sokve it.help please.
Sir my lock key suddenly not working please help me
My grand has a problem when I calling incoming and outgoing voice not able to hear
Just try to reboot your device
Firstly check your sub key by dialing *#0*#
then reboot your device after removing the battery
If still not working then you must take it to service center as this must be a hardware fault
Firstly check your sub key by dialing *#0*#Â
then reboot your device after removing the battery
If still not working then you must take it to service center as this must be a hardware fault
Mr. Pramesh it seems to be a hardware issue so its better to give it to expert hands
You might try to reboot the device
you can also install some widgets which will lock your device
Sir I am not able to get your problem
Is your microphone is not working or receiver
first switch off next on same time menu button lock button volume down button same time press
Go to settings>security>unknown sources> enable it and start installing apps
Pls tell me how to lock the SIM card in Grand Duos
How to deal with the hang problem
Just close the application you opened and try to clear the ram will make it a little faster
Try not to install too much applications on your mobile
Do a factory reset if it is hanging a lot, but remember to backup your important stuff
Hi I hav voice calling problem with galaxy grand duos.gsm calls r ok.but when I call in skype and viber for others r not able to hear me but I can hear them very clearly.i unistalld all the software many times but still iam facing the same issue.could u ps help me to solve this problem.
Sir i want to root my mobile..
can you help me with this please..
azhar
Hi I hav voice calling problem with galaxy grand duos.gsm calls r ok.but when I call in skype and viber for others r not able to hear me but I can hear them very clearly.i unistalld all the software many times but still iam facing the same issue.could u ps help me to solve this problem.
sir i have galaxy grand duos ,there is back key menu key not working ple advise
Is your back key not working always or in a particular application
Just try to shut down your mobile and remove the battery for some time and again put it back
Hey Dude rooting device is very risky process and your warranty will also be voided
Also it is illegal to root a device
contact me on my email if you want to root your mobile
It seems skype or viber is not able to access your microphone
Go in setting then sounds and check the settings of microphone
Or just try to restart your device
It seems skype or viber is not able to access your microphone
Go in setting then sounds and check the settings of microphone
Or just try to restart your device
Samsung Galaxy Grand Duos vibration not working what should i do. ??
plz help
Hi,
my Samsung galaxy grand duos vibration is not working even though it is on vibration mode…is there any solution on it ?
hello Darpan
Type this in the phone dialer to enter vibration test mode *#0842# and check it
If it is still not working then this must be a hardware problem and you must take it to nearest service center and get it repaired
hello Ashok
Type this in the phone dialer to enter vibration test mode *#0842# and check it
If it is still not working then this must be a hardware problem and you must take it to nearest service center and get it repaired
(you may try to restart your device or change vibration settings)
Sometimes while unlocking my grand duos my touchscreen doesnt work n phone restarts automatically
The home screen button is not being displayed on my smasung galaxy grand duos. .. what do I do to solve this problem… plz someone tell… humble request!!
Home Screen button is nothing but a physical button present at the bottom of your mobile
Pressing it will bring you to the home screen.
Hey only left side of my earphone work any solution??I have grand quattro