| Subject | English | German |
| comp., MS | PIN unlock key | PIN-Entsperrcode (An 8-digit code used to unlock the SIM card. A Personal Unlocking Key is a type of personal identification number (PIN)) |
| gen. | unlock key | Korrekturtaste |
| gen. | unlock key | Entsperrtaste |
| tech. | unlocking key | Entriegelungstaste |