Location Beacons

Recently about two weeks ago my six estimote location beacons and 10 stickers arrived.

I started and tried to follow logical steps as you would expect from anybody.

1- I was only able to map the location by using iphone, my ipad air 2 did not work for location mapping… why?
2- I have made changes to beacon settings in various sections, would you please guide me how to get them back to default settings (manufacture settings).

3- All six beacons on cloud estimote showing a number on the beacon picture within purple color… whats wrong please?

Thank you