我正在用,感觉不错。关于解锁给你看官方解释。
For information on the SIM Unlock Code, refer to the following:
If you purchased a device from T-Mobile, it has been programmed with a SIM
lock which will prevent the phone from operating with other compatible
wireless telephone carrier’s services. If you wish to use the phone with
the service of another wireless telephone carrier, you must enter a numeric
SIM Unlock Code to unlock the phone.
If you have a Postpaid Plan, T-Mobile will provide the SIM Unlock Code upon
request to eligible customers, provided the requesting customer has a
minimum of 40 days of active service with T-Mobile and did not request a
Subsidy unlock code in the last 90 days.
For customers with a Prepaid Plan, T-Mobile will provide the SIM Unlock Code
upon request to eligible customers, provided the requesting customer has a
minimum of 60 days of active service with T-Mobile and either a Prepaid Plan
account balance of at least $10.00 or a prior refill within the last 30
days.
T-Mobile will provide the SIM Unlock Code upon request to eligible former
customers, provided that T-Mobile has such code or can obtain it from the
manufacturer.
If you paid full retail price for a device, you qualify to have the SIM
subsidy unlock code providedif you meet the following requirements:
The device must have been purchased at a T-Mobile retail store or authorized
T-Mobile retailer.
The device must be paid for completely. You must be able to fax the proof of
purchase to T-Mobile.