Managing Your Device Memory; Privacy: Reset To Factory Settings - Zte T221 User Manual

your SIM card as soon as you can.
1. Press Home key > tap
Security > Set up SIM card lock.
2. Select SIM card 1 or SIM card 2.
Tick the Lock SIM card check box.
3.
Enter the PIN you've been given and tap OK.
4.
TIPS: If you enter the wrong SIM PIN more times than
allowed, your SIM card will be locked and you cannot
access the mobile phone network. Contact your operator
for a PIN 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 > tap
Security > Set up SIM card lock.
2. Make sure you already tick the Lock SIM card check
box.
3. Tap Change SIM PIN.

Managing Your Device Memory

Press Home Key > tap
You can view the space information of the SD card and
the phone storage.
Unmount SD card: You can unmount the SD card to safely
remove it.
Erase SD card: Erase all data on the SD card.

Privacy: Reset to Factory Settings

Press Home key > tap
& reset > Factory data reset > Reset phone > Erase
everything.
WARNING: All your personal information and downloaded
> Settings >Personal>
> Settings >Personal>
> Settings > More>Storage.
> Settings > Personal>Backup