Protecting Your Sim Card With A Pin; Unblocking A Sim Card That Has Been Locked Out; Removing The Sim Card Properly - HTC Smart User Manual

Protecting your SIM card with a PIN

1. From the main Home screen, press MENU, and then tap
Settings > Security > PIN code.
. Enter the current SIM card PIN, and then tap OK.
Note Emergency calls can be placed at any time, without requiring a PIN.

Unblocking a SIM card that has been locked out

If you enter the wrong PIN more times than the maximum number
of attempts allowed, your SIM card will be locked. You need a PUK
code (PIN Unlocking Key) to restore access. This code may have been
provided when you received your SIM card. If the PUK code is not
provided or you lost it, contact your mobile operator.
1. Enter the PUK code, and then tap OK.
. Enter a new PIN, and then tap OK.
. Confirm your new PIN, and then tap OK.

Removing the SIM card properly

1. Turn off your phone, and then remove the back cover and
battery. If you're not sure how to remove them, see "Before
Turning On Your Phone" in Chapter 1.
. With your right thumb, press down the small tab located at the
right side of the SIM card slot.
. With your left thumb, slide the SIM card out from the slot.
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Chapter 9 Managing Your Phone 11