HP Pre3 User Manual page 186

2 Throw the app off the top of the screen to close it.
3 Throw any other open applications off the top of the screen to close
them.
Why this might help
One or more of your open applications could be reserving so much
memory that there's not enough memory left to do real work. Closing
apps can free up enough memory so you can continue working.
T2. Turn your smartphone completely off and on
NOTE If the screen is off and you can't turn it on or if gestures don't work, skip
to T3. Triple-toggle to restart.
1 Press and hold the power
2 Tap Power and then tap Restart.
Why this might help
Restarting your smartphone closes all applications, frees up all memory,
and reinitialises wireless services (phone, Bluetooth
and VPN). A fresh start.
186 Chapter 14 : Troubleshooting
button.
technology, Wi-Fi
®
An occasional restart can be good for your smartphone just the way a
TIP
restart can be good for your computer. Every once in a while, restart your
smartphone.
T3. Triple-toggle to restart
1 Press and hold the power button.
2 While still holding down the
three times.
Wait a few seconds for the restart to begin.
Or try this method for restarting your smartphone: 3-key restart:
and hold Option + Sym +
Give this method at least 10 seconds for the restart to begin.
Why this might help
A triple-toggle or 3-key restart may be effective if the screen is off and you
can't turn it on, or if gestures don't work. These restarts also close all
applications, free memory and reinitialise wireless services (phone,
Bluetooth technology, Wi-Fi and VPN).
®
NOTE Because open applications are forced to close immediately during a
triple-toggle or 3-key restart, some unsaved data may be lost.
power button, slide the ringer switch
Press
R and then release the keys all at once.