Blackberry 1S40555 Troubleshooting Manual - Page 7

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• Contact your network operator to obtain the PUK code (Personal Unblocking Key).

I am unable to download new files

• Make sure there's sufficient phone memory for your download files.

• Check your subscription status with your operator.

My callers are unable to leave messages on my voicemail

• Contact your network operator to check service availability.

I cannot access my voicemail

• Make sure your operator's voicemail number is entered in "Voicemail number" correctly.

• Try later if the network is busy.

How to make your battery last longer

• Make sure you follow the complete charge time (minimum 3 hours).

• After a partial charge, the battery level indicator may not be exact. Wait for at least 20 minutes

after removing the charger to obtain an exact indication.

• Adjust the brightness of screen to appropriate level.

• Extend the email auto-check interval for as long as possible.

• Update news and weather information on manual demand, or increase their auto-check interval.

• Exit background-running applications if they are not being used for a long time.

• Deactivate Bluetooth, Wi-Fi, or GPS when not in use.

The phone will become warm following prolonged calls, game playing, internet

surfing or running other complex applications.

• This heating is a normal consequence of the CPU handling excessive data. Ending above

actions will make your phone return to normal temperatures.