I accidentally deleted Facebook, l don't know how to get the f icon on the screen where the other symbols appear!

what exactly?....deleted the app or your account?

If you find the Facebook icon, tap and hold down on the icon until it starts to jiggle around. Then tap the little 'x' on the top left corner of the Facebook icon. A message should appear asking you if you want to delete Facebook. Press delete.

1. On a PC go to your FB home page
2. On the left hand panel select 'Photos'
3. Select the 'Your Photos' tab
4. Roll your mouse pointer over the video you wish to remove
5. Click on the Pen symbol that appears
6. Select "Delete this Photo" from the contextual menu that appears
7. Click the 'Confirm' button on the alert that displays

Thats it

If you accidentally deleted it from your screen, it should still be in your list of apps

Delete it first (press & hold the Facebook App on the screen and when an X appears press the X and delete the APP.
Then go to the App Store icon and do a search for Facebook - then re-install it.

Is this on a phone, tablet or PC?

that lock icon is childlock to remove that please read your manual on how to unlock..if you don't have manual please let me know..

Thank you for using fixya..

On android, move a Icon/shortcut: press and hold the finger on the icon and drag it to where you want either on the same screen in a different spot or to another adjacent screen then lift finger.
To delete an icon/shorcut, do the same as for moving the icon but this time drag it to the 'Trash bin' symbol at bottom line/middle position of the screen: the icon should turn Red and lifting yiour finger will delete it.
It takes a bit of practice but it is quite easy and safe as you can always get the icon back from the application folder.

Hope it helps!

simultaneously press the display button untill you see the battery icon. the display button would also switch other icons as you press it.