How do I unlock a Motorola V188 phone (T-Mobile) so that I can use it with another SIM card?
I got the unlock code (subsidy password) from T-Mobile. The problem was that when I inserted the non-T-Mobile SIM card I got the "contact service provider" message instead of a prompt to enter the unlock code. I contacted T-Mobile again and they asked me to wait about 30 minutes for the "contact service provider" message to go away and the prompt to show up. (I also saw a lot of postings on the internet suggesting the same approach, with the wait period variously between 15 minutes and 24 hours.) I followed the suggestion and the correct prompt came up after about 1 hour. Then everything worked as expected. Thanks, anyway, for your offer of help.
George Rabindran
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