[thepiwo]

you could build CM or AOSP from source if you want

[pjmlp]

And void the warranty of a device in the process? No, thanks.

[HNcow]

Do you still have a working warranty for your Nexus 4?

[pjmlp]

Nexus 4 isn't the only one that suffers from lack of support.

[wnevets]

but thats what this comment thread is about.

[mappu]

Anecdotally: I have had a smartphone hardware fault repaired under warranty, despite having an unlocked bootloader and a custom ROM installed.