HP Pre3 User Manual page 192

• If using the AC charger, make sure it is securely inserted into a working
outlet. Try a different outlet if one is available.
• If using a computer, try a different USB port on the computer if one is
available.
• Try a different compatible USB cable if one is available.
If you are trying to charge the battery using an HP Touchstone, try these
steps in sequence:
• Make sure your smartphone is correctly positioned on the Touchstone. If
the HP Pre is correctly positioned, a "Charging Battery" notification
3
appears, and a lightning bolt appears on the battery icon in the top
right-hand corner of the screen.
• Make sure the slanted face of the Touchstone and the silver dot on the
USB cable are facing up.
• Make sure you are using the USB cable that came with your
smartphone or with the Touchstone, or a compatible cable approved by
HP, to connect the Touchstone to the AC charger.
• Make sure that you are using the AC charger that came with your
smartphone or a compatible charger approved by HP.
• Make sure the USB cable is securely connected to the Touchstone and
the AC charger. You may need to rock the connector on the USB cable
gently to fully insert it into the Touchstone.
NOTE The Touchstone does not work when it is connected to a computer.
• Make sure the AC charger is securely inserted into a working outlet.
• If the outlet is connected to a light switch or power strip, make sure the
power is on.
192 Chapter 14 : Troubleshooting
• Try a different outlet if one is available.
• Try a different compatible USB cable if one is available.
• Restart your smartphone (see Restart your
I need to replace the battery
1 Shut down your smartphone if it is on (see
smartphone).
2 Slide out the keyboard.
3 Firmly hold the middle of the smartphone with one hand. With the
thumb of your other hand pressing on the HP logo at the back of the
smartphone, place a fingernail in the notch below the keyboard and
pull the cover away from the body of the smartphone.
smartphone).
Shut down your