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1. Tap Home Key > > Settings > Location & security > Set
up SIM/RUIM card lock.
2. Tap Change SIM/RUIM PIN.
3. Enter the PIN and tap OK.
4. Enter a new PIN and tap OK.
5. Reenter the new PIN and tap OK.
Setting Up Credential Storage
You can select to allow applications to access secure certificates
and other credentials.
Enable secure credentials
1. Tap Home Key >
> Settings > Location & security .
2. Tap Set password to create a password.
Tips:
You can also install encrypted certificates from microSD card by
tapping Install from SD card.
3. Select the Use secure credentials check box.
Delete credentials
1. Tap
> Settings > Location & security.
2. Tap Clear storage to clear credentials.