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
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Menu structure is: Menu/Settings/Profiles/Normal Profile/Options/Incoming Call/Voice Call Ringtone see details below Sound Settings You can customize various sound settings. 1. When the Idle screen displays, press the Menu soft key. 2. Select Settings and press the Select soft key or the Cingular icon key. 3. Select Profiles and press the Select soft key or the Cingular icon key. Use the Down Navigation key to scroll through the following list of available options: Normal Profile To access the available options for this calling profile, press the Options soft key. Highlight Edit and press the Select soft key or the Cingular icon key. Use the Left and Right Navigation keys to move between the various tabs. This menu allows you to alter the audio settings for the following categories: • Incoming Call: allows you to edit the properties for audio alert used for incoming phone calls. -_ Voice Call Ringtone: allows you to select a ringtone from your My Stuff (Phone) folder which contains not only the default phone ringtones, but also any new ringtones which have been downloaded from the Internet.
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
1) Insert non Tmobile SIM (Such as a Cingular SIM) 2) Phone on. It will display wrong SIM 3) Enter *7465625*638*00000000*00000000# (The zeros will be dashes) (Press End and the screen will clear) 4) Enter #7465625*638*00000000# 5) Reboot phone. Now you can use the Cingular SIM card.
Try connecting and external display screen to your laptop's external display port. If the external display is working, then try to access your laptop display connector (usually can access by removing the top power button access cover and/or the keyboard assembly) to the motherboard and disconnect and reconnect to motherboard. Power laptop back on, if still doesn't work, then could be the display invertor pcb or the actual display. If you have to order a display, make sure the display invertor board comes with it. Hope this helps, Ed.
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!