Composed of 4 figures, the PIN code is the access code for your SIM card, and therefore to the Orange network.
You must enter this code every time you turn on your mobile.
As your PIN code is secret, it is displayed on the screen in the form of small stars or other symbols.
The PUK code (PIN Unlock Key) is composed of 8 figures and is used to unblock your SIM card if you have entered an incorrect PIN 3 times in a row.
You will find the PIN and PUK codes written on the card to which your SIM card was attached.