New [UPDATE][TUTORIAL] Fixing bootloop/unroot/refresh device By Michaelsample2

THINGS U NEED:
PC/Laptop/Netbook
USB Cable
KIES 3
GALAXY V Stock Firmware
Odin 3.10.7

STEP 1:

Download and install KIES 3 on your PC/Laptop/Netbook. After installation completed, go to TOOLS  then select REINSTALL DEVICE DRIVER. Wait until it finish and keep the KIES 3 task opened.

STEP 2:

Download the file GALAXY V Stock Firmware on your PC/Laptop/Netbook. Extract it. There will be a file named G313HZblablablabla.tar.md5.

STEP 3:

Download and install Odin 3.10.7 on your PC/Laptop/Netbook.

STEP 4:

Turn off your GALAXY V. Reboot your GALAXY V to download mode by pressing HOME BUTTON+VOLUME DOWN+POWER BUTTON.

STEP 5:

Connect your USB Cable from your GALAXY V to your PC/Laptop/Netbook.

STEP 6:

Open Odin. Odin will detect your phone. We can see the detection when the text [COM] in Odin becoming blue. That's mean your device has been connected to Odin.

STEP 7:

In Odin, search for the button AP  and click on it. Odin will ask you to put a file. You need to select the file you extracted G313HZblablablabla.tar.md5

STEP 8:

And then wait for 6 seconds. Press START in Odin. Wait until the process finished. (Don't touch your device while the process is running)

CONGRATULATIONS NOW YOUR DEVICE IS UNROOTED/FULLY REFRESHED/BOOTLOOP FREE!

Credits:
Danii Saahir
Hyekal Hitech
All Samsung GALAXY V groups and members