Question about Sony Ericsson Z520a Cellular Phone

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Unlocked may not be??

I bought a unlocked sony ericsson z520a and slipped my t-mobile sim card in. It's telling to insert correct smart chip. I assume a smart chip is the same as a sim card? Could it be that it's not unlocked and since the phone is Cingular and my sim is tmobile thats the issue?

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Re: unlocked may not be??

You need the sim card that's the same as the cell phones provider in order for it to work

Posted on Feb 16, 2008

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There are three possibilities to get this type of issue.
1.There may be a problem in your Sim card so try another one.
2.Your mobile is locked to particular network provider.
If your problem persists,After replacing new Sim card means definitely Your mobile phone is restricted by some network so try to unlock your mobile phone.For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like Here you can unlock your phone at low cost.

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Nck code sony ericsson w580i free

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Need unlock code for sony ericsson z550a for a tmobile SIM

Hi, If you get error message as PIN blocked. Unlock?" You have entered the wrong PIN code too many times. You need to unlock your phone using the PUK (PIN Unlocking Key) code. Your PUK code is provided by your network operator. If you get error message as Insert correct SIM" You have inserted a SIM card that is not supported. Insert correct SIM card, or contact your Service Provider for a SIM unlock code. If you get error message as Phone locked" or "Enter PIN" Your phone is locked and you need to unlock it with your personal PIN. The default PIN is '0000', but you or your network operator may have changed it. I Hope it helped you. Thank you for using ' Fixya ' and have a nice day!!

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I have an at&t sony ericsson w580i i got from a friend i have a prepaid sim card and when i insert the card it says insert correct smart chip i think it needs to be unlocked but everything i look up...

Hi this model cannot be unlocked for free, it IS currently locked on a network provider, you can go to your local phone shop to get it unlocked.

Hope this helps


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you can get the unlock code here ..It provides unlock code and instructios...By using this u can unlock ur mobile easily...

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go to a company store that your phone works with and tell them you would like an unlock code so you can use the phone abroad they should help you without a problem

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How to use india SIM in US mobile

this erroe happens because the phone may be locked 
r else the gsm may not be supporting 
indian gsm and us gsm varies a lot check the gsm

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Insert correct smart chip

your phone is locked tell me operator of the phone and i will genrate unlock code but not free if interested contact me on

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