Sim Card Protection - Sony G3423 User Manual

The pattern, PIN, or password screen lock you set up serves as a backup unlock
method if you enable the Fingerprint unlock option. Selecting other screen lock
types will clear all fingerprint settings.
To Unlock the Device Using Your Fingerprint
• With the lockscreen active, place your finger on the power key so that the
device can scan your fingerprint and unlock the screen. Be sure to use a
finger that you have registered in Fingerprint Manager.
If you fail to unlock the screen using your fingerprint after five attempts, you can use your
backup pattern, PIN, or password instead.
To register a fingerprint for the first time
1 Find and tap Settings > Lock screen & security > Fingerprint Manager.
2 Tap NEXT. If prompted confirm your pattern, PIN, or password.
3 Tap NEXT and follow the on-screen instructions to complete fingerprint
registration.
When registering a fingerprint for the first time, you are also prompted to set up a pattern,
PIN, or password as a security backup if you have not already done so.
The fingerprint sensor is on the power key and not on the screen of your device. Before
using the fingerprint sensor, be sure the sensor is clean and without any visible moisture.
To register additional fingerprints
1 Find and tap Settings > Lock screen & security > Fingerprint Manager.
2 Confirm your pattern, PIN, or password.
3 Tap Add fingerprint, then follow the on-screen instructions.
To delete a registered fingerprint
1 Find and tap Settings > Lock screen & security > Fingerprint Manager.
2 Confirm your pattern, PIN, or password.
3 Tap the registered fingerprint, then tap DELETE > DELETE.
To rename a registered fingerprint
1 Find and tap Settings > Lock screen & security > Fingerprint Manager.
2 Select a registered fingerprint in the list, then enter a name and tap OK.

SIM card protection

You can lock and unlock each SIM card 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 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 service provider.
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 slider beside Lock SIM card 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.
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