Default [Q] Bluetooth stutter issue Padfone 2

Good morning,

I have a Asus Padfone 2 and I am very happy with it. However, there is an issue that I only have with this phone. When playing media (audio or video) the content stutters (starts/stops continuously). This problem arises with all apps except the native Google media player. Spotify, NFL GamePass, several radio apps all give this issue.

I read somewhere that this issue is resolved in Android 4.2, but my phone is still on version 4.1.1. I read online that the Android 4.2 update would be released in Q3 of 2013. Up to this day, I still have not had any update. Is there a way to push the update to my device somehow? Or is there a different solution to my issue?

Thanks in advance,