! TWRP recovery is recommended !
! Your phone should be charged to 100% !
Download and copy the rom file to SD Card.
Boot into the recovery and take a thorough backup of your current rom incase if anything goes wrong.
After its completed, Wipe cache, dalvik,system and data.
After that, Flash the ROM file which is located in your SD Card .
After its completed, reboot to system.
The first boot may take time so be patient.
Gapps installation [optional but recommended]
The rom contains google installer app so no need of gapps package.
Open google installer app and press the green button and it will check for all the not installed google apps and it will download all of the gapps required and it shows a screen of installation of apps where you have to press on install and wait for some time and repeat this step for installation of other google apps.
After this , it will show some force closes of google play services, so to solve this, go to settings>installed apps>downloaded apps>click on google play services and scroll down until you find Permissions manager and click on it and allow all of the permissions required for it, repeat this step for all of the other google apps until you notice any google apps is not force closing.
After all of these are done, Voila! you can use this rom !
Working RIL (Calls and data)
Removed some chinese apps for better performance.
Added google installer for simple installation of the gapps.
Tried to englishize the rom.
Downloads- ALL MIUI8 BUILDS HERE
If you like my works, then Buy Me A Coffee: http://buymeacoff.ee/IHR197v
sorry for my english if you didn't understood it properly
MIUI 8 for galaxy S3, ROM for the Samsung Galaxy S III I9300
ROM OS Version: 6.0.x Marshmallow
ROM Firmware Required: Rooted, custom recovery installed like TWRP
Based On: CyanogenMod
Current Stable Version: 7.3.17
Stable Release Date: 2018-05-13
Last Updated 2019-05-21