For those of you looking to upgrade to latest Android 6.0.1, we have some great news for you, CyanogenMod Team has released official nightlies for several models of the Galaxy S3 including GT-i9300, Verizon, and there are unofficial versions (that are just as good) for the GSM models (AT&T, T-Mobile, and Canadian).
The CM13 ROM will give you the latest Android 6.0.1 along with everything working out of the box including voice, data, bluetooth, camera (video recording is broken on Verizon but works on other models fine), etc…etc… Performance is excellent (super fast) and you will be able to experience the latest DOZE mode (that allows you to save battery when not using the phone) that comes default with Marshmallow.
With Android 6.0 Marshmallow, you can also turn your microSD card into internal storage. With addition of my 64GB microSD card, I was able to turn my 16GB internal into 70GB internal storage!
If you want to experience Android 6.0.1 Marshmallow on your Galaxy S3, CM13 ROM is definitely the way to go so definitely check it out for this week’s ROM of the week.
Installation is straight forward, just like all the other ROMs. Just make a backup ROM and flash away!
Download CM13 ROM for Galaxy S3 GSM (AT&T SGH-i747, Canadian SGH-i747M, T-Mobile SGH-T999) – This is a T-Mobile version but I’ve edited updater script to work on all GSM models.
To install, reboot into recovery, make backup ROM, format /system, wipe data/factory reset, install ROM, install Gapps, and reboot.
If you have AT&T or Verizon S3 with locked bootloader (Android 4.3 or up) and using SafeStrap, YOU CANNOT INSTALL THIS ROM, SORRY!
First time installing a custom ROM? See How to Install Custom ROM on Galaxy S3!
Can’t find root? See How to Enable Root on CM12.1!
Q: My 3G/4G LTE data is not working!!!
A: See How to Fix 3G/4G LTE data by Manually Setting APN on Android!
Q: I have no Play Store!
A: Make sure you install Gapps zip file in TWRP or CWM Recovery!!! Download link in this post above.
Q: I am getting Status 7 error in CWM/TWRP!
A: Sometimes, ROM developers put restrictions by accident, you can try this guide to get around it.
Q: I have no root access!
A: Missing root? See How to Enable Root on CM12.1!