T4. Top up the battery

1Connect the USB cable to the AC charger and to your smartphone.

2Plug the AC charger into a working electrical socket.

3Let the battery charge completely.

Why this might help

Fully charging the battery ensures your smartphone is not conserving power due to a low battery.

NOTE If you use an HP Touchstone, make sure you complete T4 using the USB cable and the AC charger, not the Touchstone. Connecting directly to an outlet is more effective in waking a smartphone.

T5. Take out the battery

1Try shutting down the smartphone: Press and hold the power button. Tap Power > Shut Down/Swap Battery > Shut Down.

2Whether step 1 succeeded or not, take out the battery, wait 10 seconds and then reinsert it (see I need to replace the battery). This causes your smartphone to restart.

Why this might help

Reinserting the battery performs a restart and also triggers an automatic clean-up of files that weren't closed properly.

NOTE Because open applications are forced to close immediately during this kind of restart, some unsaved data may be lost.

T6. Tether your smartphone to your computer and reinstall webOS

IMPORTANT Don't try this method until you've already tried the five Ts before this.

1On your computer's web browser, go to hpwebos.com/account, sign in and write down your smartphone's serial number.

2Go to hpwebos.com/rom and click the link to get webOS Doctor.

3Enter your serial number and follow the instructions.

Why this might help

Installing the latest version of webOS wipes and refreshes all memory. Your preferences and installed software are not affected.

Want help while you use webOS Doctor? Go to hpwebos.com/support. Select your smartphone and wireless service provider and click Support Services. Select one of the support options.

Chapter 14 : Troubleshooting 187