How to Make NFC Work when your Galaxy S3’s Screen is Locked
Many times when you do not use your phone for a while, you lock its screen. It’s a good habit as you can prevent any unwanted touches by doing so. When you lock the screen, the NFC stops working. If you don’t use NFC much, then there’s no problem. But if you really use it with the devices around you, then you should probably look for a way to make the NFC work even when your phone’s screen is locked. Here’s a tutorial for you showing how you can make the NFC work on your Samsung Galaxy S3 even when its screen is locked.
I. Before You Begin:
1. You must have rooted your Samsung Galaxy S3 smartphone. Please head to our how to root Samsung Galaxy S3 procedure first, finish it, then return to this procedure and continue.
2. You must have ClockworkMod Recovery installed on your Samsung Galaxy S3. Please refer to our guide on how to install ClockworkMod Recovery on Galaxy S3.
II. Downloading Required Files:
1. Download the NFC Mod File from here. (It’s attached there in the first post)
III. Installing NFC Mod on your Galaxy S3 smartphone:
1. Download and place the NFC mod file onto your Desktop.
2. Connect your phone to your PC using the USB cable for file transfer.
3. Transfer the NFC Mod file to your phone’s SD card root folder. Do NOT put it in any deep folder.
4. After the file transfer has been completed, simply disconnect your phone from the PC.
5. Turn OFF your smartphone using the Power button.
6. Reboot your phone into the ClockworkMod Recovery. Press and hold Volume UP+Home+Power buttons simultaneously and you will be in the recovery mode.
7. From the recovery menu, go to Advanced and select Wipe Dalvik Cache option.
8. Return to main menu of the recovery.
9. Choose install zip from sdcard option followed by choose zip from sdcard.
10. Navigate to the NFC Mod file you transferred to your phone and select it for flashing.
11. It will take a while to install the mod, once it is done, choose reboot system now from the recovery menu.
Well done ! You have successfully installed the NFC Mod on your Galaxy S3 smartphone. Now, your NFC will still work even when you have locked your phone’s screen.
If this procedure helped you, then please head to the official thread over at XDA Forum to thank/donate to the original developer of this mod !