How do I cancel Loillipop install? New S5 today install scheduled for 1 hour from now.

[AC Question]

Store set up picked "install later" when offered Lollipop and scheduled for 1 AM.
After reading about battery problems I want to cancel it and stay with 4.4.

 

[Rukbat]

Turn on airplane mode.

About the only way to stop the update is to root the phone and freeze the update app.