Now a days facebook pages have good polularity.
so many create facebook pages for entertainment or busyness purpose or else.
you need to add another admin for maintain your page.
its easy to add facebook page admin in pc but now a days so many use mobiles.
so here a trick to add facebook page admin in mobile.
3. Now Go to Address bar and Edit Current Address as www.facebook.com/yourpage
instead of https://m.facebook.com/yourpage
4.Now Go to Admin Pannel
5.Here you can change Admins for your page and add new admins
6.Now Click on add new admin
7.Now select New Admin Roles as Manager/Content Creator/Modifier
8..Now enter His mail id that linked with facebook
9.save and exit.