Finding The Identification Number Of Your Device - Sony D6643 User Manual

To Set up a SIM Card Lock
1
From the Homescreen, tap
2 Find and tap Settings > Security > Set up SIM card lock.
3 Drag the slider beside Lock SIM card to the On position.
4 Enter the SIM card PIN and tap OK. The SIM card lock is now active and you will
be prompted to enter this lock every time you restart the device.
To Remove a SIM Card Lock
1
From the Homescreen, tap
2 Find and tap Settings > Security > Set up SIM card lock.
3 Drag the slider beside Lock SIM card to the Off position.
4 Enter the SIM card PIN and tap OK.
To change the SIM card PIN
1
From the Homescreen, tap
2 Find and tap Settings > Security > Set up SIM card lock.
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 Retype 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
2
Enter a new PIN code and tap
3
Re-enter the new PIN code and tap
If you enter an incorrect PUK code too many times, you need to contact your network operator
to get a new SIM card.

Finding the identification number of your device

Your device has a unique ID (identification) number. On your device, this number is
referred to as the IMEI (International Mobile Equipment Identity). You should keep a copy
of this number. You may require it, for example, when you access the Xperia™ Care
support service and need to register your device. Also, if your device is stolen, some
network providers can use this number to stop the device from accessing the network in
your country.
To view your IMEI number
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