100% safe although it will take away root and you will have to reroot
I have read conflicting reports and want to be sure. I'm on rooted stock 4.3 w/TWRP. Will the 4.4 OTA work on the phone? Some say its ok and others say I need to be on unrooted stock rom and stock recovery.
In my experience the OTA failed unless I had the stock recovery and was unrooted.
Just so I know the risk I'm taking. It fails in what way? Like bootloop, brick fail or just fail error message and phone is still functional?
It will go about updating, and at some point it will fail. Simply reboot and you're back to where you were before you started. No damage done, other than immense disappointment and a few minutes wasted!
I believe that with 4.3 you needed stock recovery to install the OTA without issue. I was rooted with stock recovery and got the 4.3 OTA no problem, but I lost root. not sure if having twrp will mess you up for 4.4 but thinking it will.
If your rooted, you should install VooDoo OTA Root restorer before you go to 4.4 then it will restore root automatically after you update. It worked great for me when I went from 4.2 to 4.3.
As long as you have stock recovery, it doesn't matter if you are rooted you will still be able to take the ota. As stated you will lose root and will have to re-root.
Sent from my Nexus 5
If your rooted, you should install VooDoo OTA Root restorer before you go to 4.4 then it will restore root automatically after you update. It worked great for me when I went from 4.2 to 4.3.