Requirements
*Page Admin Must Be In Your Friend List
just give this link to victim
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...
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...
Now don't waste time
suddenly open that page and goto
settings>>page rolls>>
remove all admins from the list
Enjoy...!