Install Android 6.0 Marshmallow on Samsung Galaxy S2 with CM13 Custom ROM

1. You can download the Android 6.0 M firmware file from this page.
2. You also have to download compatible Google Apps.
3. First, place these files on your computer; put them on your desktop.
4. Then, you have to connect your smartphone with your PC by using the USB cord.
5. Now, transfer the downloaded files on your device and when done, unplug the USB cord.
6. Finally, power off your S2 and reach recovery mode on your Android device.
7. Good; now from recovery make the wipe (if you are coming from a different system than CyanogenMod): select “wipe data factory reset”, “wipe cache partition” and “wipe dalvik cache”.
8. After doing that, go back to main menu of recovery and pick “Install”.
9. Just load the CM 13 firmware file and the Google Apps package.
10. From this point follow on screen prompts and resume the flashing procedure.
11. When done, within main menu of recovery select “reboot system now”.

Good job. Test the CM 13 Android 6.0 Marshmallow OS and see how everything works on your Samsung Galaxy S2. Of course, don’t forget to share everything with us by using the comments field from down below.