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Do you want to use any GSM network sim card in Sony Ericsson WT13I Phone?You need to unlock from T-mobile network lock.Get the unlock code from the site Simpleunlocking.com and unlock it from service provider lock.Then use any GSM network sim card in it.
SAMSUNG E2222 locked to network..You need to Unlock it...Visit the site Onlinegsmunlock.com get the Unlock code and unlock it from service provider lock...Then use any GSM Network sim card in the Phone.
It sounds like the phone is locked to AT&T and you're trying to use another SIM. You'll need to unlock the device to use it with another carrier. You can buy an unlock code here: http://gsmunlocklabs.com/samsung-unlock-code/
You mean you need to unlock the Phone from the Network lock?to use any GSM Sim card, You can get the Unlock code from here Superunlockcodes and get the Free Unlocking instructions for other Model Phones from here Mobileunlockguide and Unlock it...If you need security unlock code means get from service provider..
If the Phone says invalid Sim card means it locked to some network,You need to Unlock it.....You can Unlock the Phone,using the Unlock code from here Superunlockcodes and Unlock it.Check code for Your network lock and Country and Unlock it.....Then after unlock it you can use any GSM Network Sim card in the Phone,.
Let me give you a little background and then some solutions. This is generic because I don't know your carrier. I'm useing ATT as an example.
Phones are naturally unlocked, but a service provider might lock them
When originally manufactured, all GSM cell phones are unlocked. That is, they can be used with any SIM from any cellphone service provider - always assuming, of course, that the cellphone service provider has compatible GSM service on the same frequency bands that the phone can operate on.
Most cell phone service providers electronically 'lock' the phone so that it can only be used with their service. There are obvious reasons why they choose to do this - in particular, to force you to pay what are usually very high roaming charges when you take your phone out of their network and use it elsewhere in the world.
Fortunately, this locking is reversible. With some phones, it is possible to simply enter an unlocking password code into the phone and it is immediately then unlocked. Other phones need to be connected up to a special unlocking data terminal.
Your phone has to be unlocked by the carrier. LG, Motorala, Sony Ericsson, Nokia and most of their ilk, will not give consumers the unlock codes but don't despair.
A PUK (PIN Unlock Key) code is required to unlock SIM cards that have become locked following three successive incorrect PIN entries. If your SIM card becomes locked, you will need to get a PUK code from your carrier. For example, if you have AT&T to unlock your SIM card, you can obtain your phone's PUK code from AT&T by:
? logging in to your myWireless Account online ? using their Technical Support Chat ? calling Customer Care at 1-800-331-0500
To get your phone's PUK code online from ATT:
? Log in to your myWireless Account. ? Select My Services under My Account. ? From the My Services screen, select My Phone/Device. ? Select Unblock SIM Card. ? The Unblock SIM screen will display your PUK code.
Once you receive your PUK code, you will need to enter it into your phone to set a new PIN code.
Note: If you enter the wrong ATT PUK code 10 times in a row, your SIM card will be invalidated, and you will need to purchase a new SIM Card. The phone will display the following error: "PUK blocked call operator."
There are three other ways to unlock a phone:
? The carrier will unlock the phone for you at one of its retail outlets; ? You can do it yourself by clicking on this link Free Unlock Codes , ? Pay $3.89 at the following website: www.theunlockshack.com/.
I trust that this is helpful and solves your problem. All the best
There can be many ways to Unlock your phone. As far as i know unlocking by codes is the simple and safe way. I will suggest the website Unlock-Zone.com which is doing good service and they were recommended highly in the cell phone forums. I used them to unlock my cell phone. contacted them and within 30 mins i had my unlock code and my phone was unlocked. Hope this helps.