Phones Key » Sony Ericsson Phones » to unlock sony ericsson w580i with the unlock code

  #1 (permalink)
: I'm visiting china for two months so i call at&t for the unlock code which they gave me right away. But then when i put the china mobile sim card into the phone, it just said incorrect sim doesnt even give me the option to put in the unlock code...please help. Thanks.
addition: the phone easily roamed to China Mobile with the at&t sim card in.

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  #2 (permalink)
: probably you might be following the wrong instructions of unlocking, since you've said that u've got your Unlock codes, try following these instructions

1 - Switch ON your Sony Ericsson W580i without any SIM Card,
2 - Press the left arrow key/button once,
3 - Press the button * twice,
4 - Press the left arrow key/button once,
5 - The message "Personalize with MNC2" will appear, (or you will have displayed an unlock menu, select the lock you want to unlock)
6 - Enter the Unlock Code.

If your Sony Ericsson W580i does not have a left arrow button/key(e.g. Sony Ericsson W950i) and on a few phones(not all) that have a "JOGDIAL" you must press the "down arrow" key/button instead of the "left arrow" key/button for step 2 & 4. We mean by "Down Arrow" to direct the Jogdial down! In the Sony Ericsson W950i and some other models, the down arrow button/key would be located on the side of the phone.
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  #3 (permalink)
: Maybe the phone doesn't support the china network's frequency. Confirm this with the network customer support. I unlocked mine using the permanent unlock service from and was able to swap to other GSM networks in my country without any problem.
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