Microsoft Lumia 950 - Access codes

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Access codes

Learn what the different codes on your phone are for.

SIM PIN code
(4-8 digits)

This protects your SIM card against

unauthorised use or is required to access

some features.
You can set your phone to ask for the SIM

PIN code when you switch it on.
If you forget the code or it isn't supplied with

your card, contact your network service

provider.
If you type in the code incorrectly 3 times in

a row, you need to unblock the code with the

PUK code.

PUK

This is required to unblock a SIM PIN code.
If the code is not supplied with your SIM card,

contact your network service provider.

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Security code (sign-in PIN, lock screen PIN)
(min. 4 digits)

This helps you protect your phone against

unauthorised use and verify your identity.
You can set your phone to ask for a PIN when

you, for example, unlock your phone, change

security settings, or buy an app in Store. You

can define this PIN yourself.
Keep the PIN secret and in a safe place,

separate from your phone.
If you forget the sign-in PIN and cannot

recover or reset it in any way, your phone will

require service. Additional charges may

apply, and all the personal data on your

phone may be deleted.
For more info, contact the nearest care point

for your phone, or your phone dealer.

IMEI

This is used to identify phones in the

network. You may also need to give the

number to your care point services or phone

dealer.
To view your IMEI number, dial *#06#.