Question about Cell Phones
Either you aren't connected to the correct network or the sim is not registered with the service provider
Posted on May 16, 2014
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Posted on Jan 02, 2017
Please use one of the below Samsung secret codes to format your phone:
There are actually two codes that you can actually use to
reset the password. Below are these codes. Please dial them
up and have the problem solved.
Through this mean the security code will be reset to 0000.
This will allow you to format the phone easily.
Posted on Sep 04, 2010
SOURCE: My samsung Duos gt-b5722 not
Try other sim cards in the phone to be sure the problem is not from the sim. When you are sure the problem is not from the sim, try to reset the phones's factory settings. If it still does not work, then flash the phone.
If the fault was detected to be a sim fault, then get another line of the same network, and call your mobile service operators.
Hope this was helpful?
Posted on Mar 21, 2011
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