Question about Samsung SGH-E870 Cellular Phone
I have a Samsung E870 I want to unlock from T-Mobile. The instructions from T-Mobile tell me to insert a sim card from another network, then at the message "network locked, enter password" I should enter the unlocking code supplied. However I get the message "Invalid sim card".
Can anybody explain why I get this message and what I need to do to unlock the phone. Neither T-Mobile or Samsung know the answer.
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Posted on Jan 02, 2017
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