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#.