Question about Samsung SGH-D820 Cellular Phone

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SGH-D820 screen displaying "Cingular Extend", when normally it would display "Cingular".

I am on the AT&T(Cingular origionally) Network. One day I awoke to find my Samsung SGH-D820 screen displaying "Cingular Extend", when normally it would display "Cingular". This could normally be corrected by going to the "Network Selection" feature, and after a short search, it would give me a choice of "Cingular Extend" or "Cingular" for my Network. However when I try to use the Network Selection feature, the choices that I am given are "Cingular Extend" or "T-Mobile" . "Cingular Extend" induces roaming charges and "T-Mobile" ,when seleced, reads "Not Allowed". How can I get the phone to give me an operational network?

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  • Master
  • 425 Answers

Try resetting your phone to its factory settings..

Posted on Oct 17, 2007

  • Johnny Miranda
    Johnny Miranda Oct 17, 2007

    try to call your operator's customer service bec usually it is set by your operator settings. try calling them thier very happy to help you...

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1 Answer

On the SAMSUNG SGH-ZV40 how can i change the ring tones. can i get a step by step guide as my screen has broken


Hi Lilfranza,

Menu structure is: Menu/Settings/Profiles/Normal Profile/Options/Incoming Call/Voice Call Ringtone see details below
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You can customize various sound settings.
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To access the available options for this calling profile, press the Options soft key.
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3 Answers

No service only emergency


HI,

Go into your phone settings from the start menu and go to Wireless Manager, then click on Menu. Choose 3 Phone Settings from the popup and then choose More from the option, which takes you to Networks. If your "Current Network" is none, click Menu and search for networks. Cingular should be found

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Phone lock code


PERMANENT UNLOCK CODE SAMSUNG SGH A117, T429, T729

Insert ANY unaccepted SIM card in the phone and then turn the phone on, follow the steps in 1 to 4 below to enter all the codes. The phone will states "Wrong card" at the end of step 2 and "network lock deactivated" at the end of step 4 if you do everything right so pls take your time to enter the code or follow the instruction correctly at each step. When entering some of the zeros at steps 3 and 4 your phone may display the zero as hyphen or minus (-), dont worry, just count when entering the zero to ensure you enter just the right numbers of zeros. Now let's begin... 1/ Put any unaccepted SIM card in your SAMSUNG SGH Phone, turn the phone on, it will display "WRONG CARD"

2/ At the wrong card screen, type *7465625*638*00000000*00000000#

3/ Now remove the battery with the SIM card, Put the battery back and turn the phone on again without the SIM card, it will display "Insert SIM card" 4/ At the insert SIM card screen/end of step 3 above type #7465625*638*00000000#

At the end of step 4 phone will show "network lock deactivated" 5/ Now Reinsert your unaccepted card or any other unaccepted SIM card in the phone and enjoy your unlocked phone!

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