Dell Venue 7 (3741, Late 2014) - Manual (Page 23)

Using Your Device | 23
Password
This security method requires you to enter a password that you need to enter every
time to unlock the device.
If incorrect unlock passwords are entered for five consecutive times, the device
forces a 30-second delay before you can try again.
Creating a password
1. Tap → Settings → Security → Screen lock → Password.
2. On the Choose your password page, type a password in the text box.
NOTE: Your password must be at least 4 characters long and must contain
an alphabet/letter.
3. Tap Continue to proceed.
4. Type the password again to confirm.
5. Tap OK.
Disabling or changing the password
1. Tap → Settings → Security → Screen lock → Password.
2. Type the password you have enabled.
3. Select None to disable the password or select Password to change password.
Protecting your SIM card with the SIM lock password
You can protect your SIM card against unauthorized use with a PIN. After a PIN is
enabled to lock your SIM, you will need to enter the PIN each time you turn on the
device in order to unlock your SIM.
CAUTION: The SIM card will be permanently locked if you enter the incorrect
PIN for three consecutive times. You must then enter the Personal Unblocking
Key (PUK) to unlock the SIM card. Contact your service provider to obtain
the PUK.