Originally Posted by SnowJim
Is the cyanogenmod for Galaxy S III(LTE) - i9305 working as good as the original rom? Have heard before that some parts might not work as good but this was for about a year ago? Is it save to install it today?
And how about warranty? Is it possible to go back to original rom if I would need to send it to service?
it is safe to install cm11, but it is not guaranteed that you will get a fully working rom as there are always some bugs with these nightly's.
about warranty, if you are on android 4.3 then you probably got knox in your system and whenever you flash a custom recovery, for flashing custom roms you will trigger the knox counter and they will not accept it if you send it to service.
but if you are coming from older android versions like 4.1.2 or 4.2.2 then you will have no knox and you can restore the system status and binary status showing left upper corner in download mode to official and for the counter you can reset it to 0 with triangle away app, but keep in mind that it could also reset the counter to 1, in that case you will not be able to send it to service.