Samsung GT-B5722: Troubleshooting

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Troubleshooting

If you are having trouble with your mobile phone, try these troubleshooting procedures before contacting a service professional.

When you turn on your phone or while you are using the phone, it prompts you to enter one of the following codes:

Code	Try this to solve the problem:
Password	When the phone lock feature is enabled, you must enter the password you set for the phone.
PIN	When using the phone for the first time or when the PIN requirement is enabled, you must enter the PIN supplied with the SIM cards. You can disable this feature by using the PIN lock menu.
PUK	Your SIM cards are blocked, usually as a result of entering your PIN incorrectly several times. You must enter the PUK supplied by your service provider.
PIN2	When you access a menu requiring the PIN2, you must enter the PIN2 supplied with the SIM cards. For details, contact your service provider.

The phone prompts you to insert the SIM card.

Ensure that the SIM card is installed correctly.

Your phone displays “No networks found” or “Network error.”

• When you are in areas with weak signals or poor reception, you may lose reception. Move to another area and try again.
• You cannot access some options without a subscription. Contact your service provider for more details.

You enter a number, but the call is not dialled.

• Ensure that you have pressed the Dial key: []
.

• Ensure that you have accessed the right cellular network.
• Ensure that you have not set call barring for the phone number.

Another caller cannot reach you.

• Ensure that your phone is turned on.
• Ensure that you have accessed the right cellular network.
• Ensure that you have not set call barring for the phone number.

Another caller cannot hear you speaking.

• Ensure that you are not covering the built-in microphone.
• Ensure that the microphone is close to your mouth.
• If using a headset, ensure that it is properly connected.

The phone beeps and the battery icon flashes.

Your battery is low. Recharge or replace the battery to continue using the phone.

The audio quality of the call is poor.

• Ensure that you are not blocking the phone’s internal antenna.
• When you are in areas with weak signals or poor reception, you may lose reception. Move to another area and try again.

You select a contact to call, but the call is not dialled.

• Ensure that the correct number is stored in the contact list.
• Re-enter and save the number, if necessary.

The battery does not charge properly or sometimes the phone turns itself off.

• The battery terminals may be dirty. Wipe both gold-coloured contacts with a clean, soft cloth and try charging the battery again.
• If the battery will no longer charge completely, dispose of the old battery properly and replace with a new battery.

Your phone is hot to the touch.

When you use applications that require more power, your phone may heat up.
This is normal and should not affect your phone’s lifespan or performance.