•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 Pre3 is correctly positioned, a "Charging Battery" notification appears, and a lightning bolt appears on the battery icon in the top
•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.
•Try a different outlet if one is available.
•Try a different compatible USB cable if one is available.
•Restart your smartphone (see Restart your smartphone).
I need to replace the battery
1Shut down your smartphone if it is on (see Shut down your smartphone).
2Slide out the keyboard.
3Firmly 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.
192 Chapter 14 : Troubleshooting