Sony Xperia - Enabling SIM PIN

SIM PIN
PIN is the security code for your SIM Card. It prevents third parties from unauthorized
use of handset. At time of purchase, "9999" is set.
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Enabling SIM PIN
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Changing SIM PIN
Enabling SIM PIN
Enable SIM PIN to show PIN entry window when handset power is on with SIM Card inserted.
In Home Screen, (Settings) Security
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