Q&A from the article:

Fix networking problem in Korean version of S3

Edited by Eng, VisiHow, senior Citizen

Questions and Answers

USSD code running, and then shows a message Undefined additional service. Contact customer center?

USSD not active, and then shows a message Undefined additional service. Contact customer center.

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Before you contact your carrier for assistance, try the tricks below.

  1. 1
    Press the home button.
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  2. 2
    Tap on "Apps".
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  3. 3
    Tap on "Settings"
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  4. 4
    Tap on "Location and Security".
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  5. 5
    Disable "Mobile tracker".
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  6. 6
    In "Settings" > "Application manager", uninstall or disable Blacklist Call or similar applications (Calls Blacklist, Call Blocker).
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  7. 7
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  8. 8
    If nothing helps, then contact your carrier as advised in the error message.
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See more questions like this: After running a USSD code an error message " undefined additional service. contact customer centre" apperars?

Ussd code running and showing undefined error?

Its Samsung Galaxy S4 and Android version 5.0.1

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Ussd code running problem in Sumsun Note4?

Whenever I deal *150*00# I am getting the message which read Undefined additional services. I am using Samsung Note4

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I have a problem with the balance inquiry code?

I have a problem with the balance inquiry code

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Fix networking problem in Korean version of S3

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Categories : Samsung Galaxy

Recent edits by: VisiHow, Eng

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