Trust me, of all Samsung galaxy ROMs, be it custom or stock ROM, I will pick the MIUI as my favorite custom ROM for the Samsung galaxy S3. Why? well, it’s UI is just so unique.

So the big question now is, What happens or what changes if you install miui for galaxy s3 i9300?

• Your phone will have a new system look. (New and improved user interface)

• Installing this Samsung galaxy S3 custom ROM will make your phone stand out amongst other Samsung S3 devices, trust me, people will envy your phone.

• This Samsung custom ROM comes with BOEFLA sound which improves your phone’s sound quality.

• Access to lots of cool themes.

Disclaimer: This installation voids the manufacturer and carrier warranty. Techytab is not responsible for bricked devices, however, this procedure is easy to follow, complete adherence to the steps will ensure a successfully installed ROM.

Before you go ahead to install the miui for galaxy s3 i9300, you should root your device and install a custom recovery.

HOW TO ROOT SAMSUNG GALAXY S3 AND INSTALL TWRP RECOVERY 

Step 1: Download Samsung USB drivers and install it on a windows PC

Step 2: Download odin+Cf-Auto-Root for Samsung galaxy i9300 and extract it to a folder on your windows PC.

Step 3: Run the downloaded Odin from the Odin+Cf-Auto-Root folder.

Step 4: Click on the PDA button, Then locate and select the downloaded Cf-Auto-Root file.

Step 5: Put your phone into download mode by pressing volume down + power + home button. Finally, press the volume up to confirm.

Step 6: Connect your Samsung device to your Pc using a USB cable. Odin should now recognize your phone.

Step 7: Click on start.

Wait for a while, after you get a successful message, reboot your device. SuperSu should now be installed on your Samsung galaxy s3 i9300

Now to the next

FLASHING TWRP RECOVERY

Step 1: Download TWRP and save on your windows Pc

Step 2: Open Odin on your Pc.

Step 3: Click on PDA.

Step 4: Locate and select the downloaded TWRP recovery.

Step 5: Connect your phone to your Pc using a USB cable.

Step 6: Click on start

You will get a success message.

Steps To Install MIUI Custom ROM For Samsung galaxy S3

Step 1: Download ROM of your choice. Exynos 4412 or  Exynos 5410.

Step 2: Download GApps-kk flashable zip.

Step 3: Put the downloaded MIUI ROM and GApps.zip in the root of your sd card.

Step 4: Switch off your device.

Step 5: Go into recovery mode by pressing and holding Volume up + Home  button + Power button simultaneously

Step 6: Do a backup. Go to backup option in recovery mode and select all partitions including system, data, boot, recovery, EFS, then swipe right to backup.

Step 7: After doing the Backup, Go back to the recovery main menu and tap on wipe.

Step 8: Select advanced wipe and Dalvik cache, system, data, and cache only.

Step 9: Confirm to wipe and wait for the process to complete.

Step 10: Go back to the recovery main menu and tap Install.

Step 11: Locate the downloaded MIUI ROM and tap on it. Now install the ROM.

Step 12: Select your device name, (i9300). wait for the installation to complete

Step 13: Go back to recovery main menu, Tap on install and locate the GApps.zip file and install it.

Step 14: Go back to the recovery main menu, and select reboot.

If you successfully install the Samsung galaxy S3 ROM, your device after boot should be like the image below.

Feel free to drop comments if you encounter any issues while flashing.

Tell us,  If you have is installed, how is the custom miui for galaxy s3 i9300 ?