Why this might help

Restarting your smartphone closes all applications, frees up all memory, and reinitializes wireless services (phone, Bluetooth® technology, Wi-Fi, and VPN). A fresh start.

TIP An occasional restart can be good for your smartphone just the way a restart can be good for your computer. Every once in a while, restart your smartphone.

Did this solve the problem?

•Yes: Stop.

•No: Continue.

T3. Triple-toggle to restart

1Press and hold power .

2While still holding down power , slide the ringer switch three times.

Wait a few seconds for the restart to begin.

Or try this method for restarting your smartphone: 3-key restart: Press

and hold Option + Sym + R, and then release the keys all at once. Give this method at least 10 seconds for the restart to begin.

Why this might help

Atriple-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 reinitialize 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.

Did this solve the problem?

•Yes: Stop.

•No: Continue.

T4. Top off the battery

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

2Plug the AC charger into a working electric outlet.

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.

Did this solve the problem?

•Yes: Stop.

•No: Continue.

Chapter 14 : Troubleshooting

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