Security settings, Protecting your device with a screen lock, Updating your device’s system software – HTC EVO 4G User Manual
Protecting Your Device with a Screen Lock
You can increase the security of your device by creating a screen unlock pattern. When enabled, you have to
draw the correct unlock pattern on the screen to unlock the device’s control keys and buttons
and touch screen.
To create and enable the screen unlock pattern:
Settings > Security > Set unlock pattern
Read the information on the screen and tap
Study the example pattern on the screen, and then tap
Draw the screen unlock pattern by connecting at least four dots in a vertical, horizontal or diagonal
direction. Lift your finger from the screen when finished.
The device records the pattern. Tap
When prompted, draw the screen unlock pattern again, and then tap
When you fail to draw the correct unlock pattern on the screen after five attempts, you will be prompted to
wait for 30 seconds before you can try again.
Updating Your Device’s System Software
From time to time, system software updates for your device may be available. Your device can automatically
check and then notify you if an update is available. You can then download and install the update to your
device. Depending on the type of update, the update may erase all your personal data and customized
settings, and also remove any programs you have installed. Make sure that you have backed up the
information and files you want to keep.
To check for phone system software updates manually
and then tap
Settings > System updates > HTC software update.
On the System software updates screen, tap
Note: You must slide your finger on the screen to create the pattern and not tap individual dots.
Use visible pattern
check box if you do not want the unlock pattern to display on the screen when you
If you want to disable the unlock screen pattern, clear the
check box. You will be prompted to
draw the unlock screen pattern.
Note: To change your unlock screen pattern, press
, and then tap
Settings > Security >
Change unlock pattern
Note: Checking and downloading system software updates may incur additional data transfer fees.