If you have the original phone box
Step 1: Put the phone and all the available accessories inside the orginal phone box.
Step 2: Wrap the box with newspaper and tape it so that the items inside the box will not fall out.
If you don't have the original phone box
Step 1: Wrap the phone (or original box) in 2cm thickness of bubble wrap (or cumpled newspaper) to provide a protective cushion.
Step 2: Find a cardboard box and layer the bottom of the box in 2 cm of bubble wrap or cumpled newspaper as protective cushion.
Step 3: Place the phone in the middle of the box and leave some space on the side for the accessories.
Step 4: Take the available accessories and wrap it separately in bubble wrap and secure with packaging tape. Place it into the box beside the phone. Fill in with more bubble wrap or cumpled newspaper so that everything inside the box is firm in place.
Step 5: Secure the box with plenty of packaging tape.