6a] Turning off the cell phone during the Fridaykhutbah – does this come under the heading of idle action that invalidates the reward of Jumu’ah?

''Friday Prayers'' :-:->
6a]
2. He is enjoined to be quiet and refrain from speaking. It is
haraam for him to speak whilst the imam is delivering the khutbah, and
it is also haraam for him to move, fidget, touch the pebbles, draw
lines on the ground, or anything else of that nature.