How to get the pop up to enter my password off of my iPhone?

IPhone 5

Go to

>>settings
>>general
>>passcode lock

once you tap on "passcode lock" it will ask for your currect password so type it
now you will see there's an "on" option so tap on that so it will now set as "off"

all done.

You have to call to customer care and register your no. For that.