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Spontaneous Unregistered SIM
June 3, 2013
6:51 pm
NorthUser
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June 3, 2013
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My phone (Samsung Gio) has been working fine for a couple of years. Today it has a message that it has an unregistered SIM and when I restarted it it asked for a "network lock control key". I have a balance on my prepaid account that doesn't expire for six months so it shouldn't be a problem with my account expiring. Anybody have any ideas?

June 3, 2013
7:39 pm
RGM
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I think you may find the answer in this link from the KOODO forum:

http://community.koodomobile.c.....im_message

August 3, 2013
12:39 pm
accordian
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August 3, 2013
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Had this happen to me on my Samsung Galaxy S2. Turned out it was an incompatible radio. Flashed it to a telus radio (from T-Mobile) and phone worked fine again. Had used this radio since December so must have been a change on the network side that triggered the issue.