SIM card protection
You can lock and unlock each SIM card that you use in your device with a PIN.
When a SIM card is locked, the subscription linked to the card is protected against
misuse, meaning that you have to enter a PIN every time you start your device.
If you enter the PIN incorrectly too many times, your SIM card will get blocked. You
then need to enter your PUK (Personal Unblocking Key) and a new PIN. Your PIN
and PUK are supplied by your network operator.
To set up a SIM card lock
1
Find and tap Settings > Lock screen & security > SIM card lock.
2
Dual SIM users, select a SIM card.
3
Tap the Lock SIM card switch to enable.
4
Enter the SIM card PIN and tap OK. The SIM card lock is now active and you will be
prompted to enter your PIN every time you restart your device.
To change the SIM card PIN
1
Find and tap Settings > Lock screen & security > SIM card lock.
2
Dual SIM users, select a SIM card.
3
Tap Change SIM PIN.
4
Enter the old SIM card PIN and tap OK.
5
Enter the new SIM card PIN and tap OK.
6
Re-type the new SIM card PIN and tap OK.
To unlock a blocked SIM card using the PUK code
1
Enter the PUK code and tap (Done icon).
2
Enter a new PIN code and tap (Done icon).
3
Re-enter the new PIN code and tap (Done icon).
Note
If you enter an incorrect PUK code too many times, you need to contact your network
operator to get a new SIM card.
Using Dual SIM devices
If you are using a Dual SIM device, it works with either one or two SIM cards
inserted. You can get incoming communication to both SIM cards and select which
number to place outgoing communication from. Before using multiple SIM cards,
you need to enable them and select a SIM card which will handle data traffic.
You can forward calls that come in on SIM 1 to SIM 2 when SIM 1 is unreachable,
and vice versa. This function is called Dual SIM reachability. You must enable it
manually. See
To enable or disable the use of two SIM cards
1
Find and tap Settings > Network & Internet > Advanced > Dual SIM.
2
Tap the SIM1 and SIM2 switches to enable or disable the SIM cards.
To rename a SIM card
1
Find and tap Settings > Network & Internet > Advanced > Dual SIM.
2
Select a SIM card and enter a new name for it.
3
Tap OK.
To select which SIM card handles data traffic
1
Find and tap Settings > Network & Internet > Advanced > Dual SIM > Mobile
data.
2
Select the SIM card you want to use for data traffic.
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