Droid Maxx - Booting into safe mode

[pab61]

Hi,
I am having trouble booting into safe mode. I have tried holding the down volume button as the phone boots and several other methods. What is the correct way to boot into safe mode?

 

[Einsteindks]

You long press the power off option in the stock power menu that pops up after you long press the sleep power button.

 

[pab61]

Thanks. Tried that but didn't long press.