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[Q] Verizon Galaxy s3 connection problem or invalid MMI code

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By awkd2013, Junior Member on 5th September 2014, 11:17 AM
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I am a newby and i had a verizon galaxy s3 and i sent it to my sister which leaves in the Dominican Republic, verizon told me that the phone was unlocked so when she putted it the sim card messages and calls works fine but when she tries to check her balance or tries use any of the UUSD codes that the provider use over there she gets this message CONNECTION PROBLEM INVALID MMI CODE any help would be appreciated it

running stock android 4.3 jelly bean
Last edited by awkd2013; 12th September 2014 at 02:14 AM.
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