The following steps are based on the Baofeng UV-5R V2+ model, but should apply to any UV-5R series Baofeng model.
1: press [MENU] key to enter into the device menu.
2: use the up or down arrow keys to navigate to the menu item you need to manipulate. You can also type in the menu item number directly to jump to the menu item. For example to change the band, after pressing [MENU] key in the previous step, press keys , , or (33) to jump to menu item 33 which is the menu item to set the band VHF or UHF.
Note: The UV5RAX+ has a [BAND] key that changes the band. The UV-5R V2+ does not have a band key and is smart enough to set the band automatically depending on the frequency entered.
3: press [MENU] key again to display the sub menu of the item previously selected
4: select the setting you want in the sub menu item
5: press [MENU] key to confirm/save your setting
6: press [EXIT] key.