Alternative Android OS developer Cyanogen has released the Android 6.0 Marshmallow-based CyanogenMod 13 nightlies for a bunch of devices, including the Sprint, US Cellular, And Vodafone Galaxy S5, as well as the AT&T LG G3 and the Xperia SP.
Keep in mind that we’re talking about nightly builds here, which aren’t usually stable. Plus, their installation can not only result in a bricked device, you may also end up voiding your handset’s warranty.
If you’re a Galaxy S5 user on T-Mobile, it’s worth mentioning that the carrier has now started rolling out the Marshmallow update to the device.
Source 1 2 3 | Via