Dell Inspiron 13z - Entering the Service Tag in the BIOS

62 System Board
Entering the Service Tag in the BIOS
1 Ensure that the AC adapter is plugged in and that the main battery is
installed properly.
2 Turn on the computer.
3 Press <F2> during POST to enter the system setup program.
4 Navigate to the Security tab and enter the service tag in the Set Service
Tag
field.