Question about Sony Ericsson Z550i Cellular Phone
First of all take another sim
and insert in mobile
if the same problem occurs
check the phone imei number
if there is an ??????? in imei number
this is a power ic problem
Posted on Feb 13, 2008
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Sep 12, 2012 | Sony Ericsson Z550i Cellular Phone
Mar 07, 2011 | Sony Ericsson Z550i Cellular Phone
If you are trying to use a SIM card in your phone and getting a message like "Enter Subsidy Code", "Incorrect SIM Card", "SIM not provisioned" or similar messages, then you need an unlock code for your mobile phone. You can get Samsung Gt-E1080T Unlock Code from the network provider, they will verify the account holder information. They can open up all networks for you where you want to use your phone. You can check Samsung Unlock Code site, they will provide you an accurate code fast for the lowest price with easy to follow instructions on how to unlock your phone. Once your phone is unlock, it will work with any networks worldwide without sticking to one network only.
Hope this is helpful.
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