You can request the phone unlock directly to the operator from whom you bought the mobile phone, Vodafone, Orange, Telekom and the rest of the Telecom companies being obliged by law to respond to the request for phone decoding within 15 working days.
The phone unlock service is available for any Android phone, whether it is produced by Samsung, Huawei, Sony, Nokia or other less known smartphone brand, as long as the model is officially sold in Romania.For the phones ordered from the offer of shops outside the European Union, the procedure can be a little more twisted, but not impossible.
Unlock Phone Vodafone (case study)
At the client's request, Vodafone will respond to the request for unlocking phone under the following conditions:
Deşi Vodafone este folosit ca exemplu, obligaţia de a asigura decodare telefon (gratis sau contracost) revine tuturor operatorilor telecom din România, astfel că puteţi trimite solicitarea direct magazinului Orange, Digi sau Telekom de la care aţi achiziţionat telefonul.
How do you get and apply network unlock code
Luăm exemplul unui telefon Galaxy S10 achiziţionat de la Orange, dar în practică procedeul descris mai jos se aplică la orice operator de telefonie mobilă din România: 
You have to have a SIM from a network other than the one from which you requested decoding, which you can enter in the phone before typing the code for unlocking.More simply, you can request a phone decoding in an Orange Shop or the representation of another nearby telephone operator.
For certain models of phones, it is not possible to decode online by entering an unlock code.In this case you will have to call a specialized service center.
Unlock iPhone
For Apple users the iPhone decoding procedure is similar to the one described above:
It is possible that after decoding the message "SIM card entered in this iPhone device is not compatible" will appear.If you meet this message, first restore the iPhone device at factory settings.If the problem persists, contact the telephone operator to venture the request for unlock iPhone has really been applied to the network.After requesting for unlocking the phone has been completed, restores the iPhone device from an earlier backup.