Nokia 5233 - Troubleshooting

background image

Troubleshooting

© 2010 Nokia. All rights reserved.

121

background image

your access point provider, for example, a commercial internet service provider (ISP)

or network service provider.

Q: How do I close an application that is not responding?

A: Press and hold the menu key. Select and hold the application icon, and select

Exit.

Q: Why do images look smudgy?

A: Ensure that the camera lens protection windows are clean.

Q: Why do missing, discoloured, or bright dots appear on the screen

every time I switch on my device?

A: This is a characteristic of this type of display. Some displays may contain pixels

or dots that remain on or off. This is normal, not a fault.

Q: Why can’t I find my friend’s device while using Bluetooth

connectivity?

A: Check that both devices are compatible, have activated Bluetooth connectivity,

and are not in hidden mode. Check also that the distance between the two devices

is not over 10 metres (33 feet) and that there are no walls or other obstructions

between the devices.

Q: Why can’t I end a Bluetooth connection?

A: If another device is connected to your device, you can end the connection from

the other device or deactivate Bluetooth connectivity in your device. Select Menu >

Settings and Connectivity > Bluetooth > Bluetooth > Off.

Q: What do I do if the memory is full?

A: Delete items from the memory. If Not enough memory to perform operation.

Delete some data first. or Memory low. Delete some data from phone

memory. is displayed when you are deleting several items at the same time, delete

items one by one, beginning with the smallest items.

Troubleshooting

© 2010 Nokia. All rights reserved.

122

background image

Q: Why can’t I select a contact for my message?

A: The contact card does not have a phone number, address, or e-mail address. Select

Menu > Contacts and the relevant contact, and edit the contact card.

Q: How can I end the data connection when the device starts a data

connection again and again?

A: The device may be trying to retrieve a multimedia message from the multimedia

message centre. To stop the device from making a data connection, select Menu >

Messaging and Options > Settings > Multimedia message > Multimedia

retrieval. Select Manual to have the multimedia messaging centre save messages

to be retrieved later, or Off to ignore all incoming multimedia messages. If you

select Manual, you receive a notification when you have a new message in the

multimedia message centre. If you select Off, the device does not make any network

connections related to multimedia messaging. To set the device to use a packet

data connection only if you start an application or action that needs it, select

Menu > Settings and Connectivity > Admin. settings > Packet data > Packet

data connection > When needed. If this does not help, switch the device off and

then on again.

Q: Can I use my Nokia device as a fax modem with a compatible PC?

A: You cannot use your device as a fax modem. However, with call diverting (network

service), you can divert incoming fax calls to a fax number.

Q: How do I calibrate the screen?

A: The screen is calibrated at the factory. If it is necessary to recalibrate the screen,

select Menu > Settings and Phone > Touch input > Touch screen

calibration. Follow the instructions.

Q: Why do I get the error message Expired certificate or Certificate

not valid yet when I am installing a downloaded application?

A: If Expired certificate or Certificate not valid yet is displayed, even if the

certificate should be valid, check that the current date and time in your device are

correct. You may have skipped the setting of date and time when starting the device

for the first time, or the mobile network may have failed to update these settings

Troubleshooting

© 2010 Nokia. All rights reserved.

123

background image

to your device. To resolve this, select Menu > Settings and Phone > Phone

mgmt. > Factory settings. Restore the factory settings, and when the device

restarts, set the correct date and time.

20. Green tips

Here are tips on how you can contribute to protecting the environment.

Save energy

When you have fully charged the battery and disconnected the charger from the

device, unplug the charger from the wall outlet.
You do not need to charge your battery so often if you do the following:
● Close and disable applications, services, and connections when not in use.
● Decrease the brightness of the screen.
● Set the device to enter the power saver mode after the minimum period of

inactivity, if available in your device.

● Disable unnecessary sounds, such as keypad and ringing tones.

Recycle

Most of the materials in a Nokia phone are recyclable. Check how to recycle your

Nokia products at www.nokia.com/werecycle, or with a mobile device,

www.nokia.mobi/werecycle.
Recycle packaging and user guides at your local recycling scheme.