In the USA there are 3 or 4 major carriers and AT&T is one of them. The fact that they sold the Galaxy S3 with subscription definitely increased their incomes because Galaxy S3 is one of the best selling devices in the world. Right now it is running Android 4.1.2 officially, but thanks to the CyanogenMod team it can now be updated to Android 4.2.1 with CM 10.1 M1, the first stable version of CM 10.1 which will receive updates monthly.
The CyanogenMod Team was recently developing CM 10.1 nightly for AT&T Galaxy S3 SGH-I747, and now it has launched their first stable version for AT&T Galaxy S3 SGH-I747, CM 10.1 M-Series. Luckily, AT&T Galaxy S3 SGH-I747 is one of the devices that can get the stable build.
CM 10.1 M-series for AT&T Galaxy S3 SGH-I747 is based on Android 4.2 Jelly Bean. For the installation we will use cm-10.1-20130121-EXPERIMENTAL-d2att-M1.zip which is a zip file and CWM Recovery.
AT&T Galaxy S3 SGH-I747
CWM Recovery and root
Full Nandroid backup
USB drivers for AT&T Galaxy S3 SGH-I747 installed
Important!! Installing CM 10.1 M Series (cm-10.1-20130121-EXPERIMENTAL-d2att-M1.zip) on AT&T Galaxy S3 SGH-I747 means you are installing a Custom ROM on your device. Here is a list with the risks involving the installation of custom ROMs on your AT&T Galaxy S3 SGH-I747. Downloads:
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