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Unlock Key (PUK) to restore the SIM card.
Changing Your SIM PIN
You can change the PIN you’ve been given to one easier for
you to remember and harder for others to guess.
1. Press
Home key >
>Settings > Security > Set up SIM
card lock
.
2. Make sure you already tick the
Lock SIM card
check box.
3. Tap
Change SIM PIN.
Setting up Credential Storage
This lets you select applications to access secure certificates
and other credentials.
Deleting Secure Credentials
1. Press
Home Key >
> Settings > Security
.
2. Tap
Clear credentials
to clear credentials.
Managing Your Device Memory
Press
Home Key >
> Settings > Storage.
DEFAULT WRITE DISK
:
The default option is to phone
storage, the phone files are automatically saved in the phone
storage, or manually select the SD card so that the files are
saved in SD card.
You can view the space information of the SD card as well as
the phone storage.