The second sim slot says invalid sim with every sim i insert into my sciphone
I think the phone use other provider than your sim card if you put orginal sim card from provider in it the sim card wil be acces
unlocking the phone you can acces all providers
you have contact old provider they wil give you unlock
codes after one year for free , you have to give them your imei number
you see it under battery or by pressing *#06# and also the old phone
number they wil also handel it with email
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