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Unlocking a mobile phone

Hey how easy is it to unlock a mobile phone? i would like to use my AT&T phone with my T-Mobile sim card. Is it possible? How would I go about doing it?

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Re: unlocking a mobile phone

Contact AT&T, ask if your phone could be unlocked to other networks. If you're paying by contract, you will have to wait until your contract has expired, then you may ask for it to be unlocked to other networks.

Posted on Jan 08, 2008

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Showing invalid sim

The most common thing for any mobile/cell phone.
Easy fix simply take an eraser & rub over the contact of the sim card then making sure not to touch the sim cards chip re-insert in to the phone & it should be problem solved. If the problem still exists insert in to another phone if possible to test the integrity of the sim card if the sim card works in another phone it could be the phone you are attempting to use it maybe faulty or the sim card is incompatible or the phone is not unlocked entirely, if it doesn't work in another phone the sim card has failed & a new sim card is required.

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Unlock my mobile phones without sim cards

Hi. To unlock a mobile phone it is not a must that you should have the respective network's SIM card. You just need a non accepted SIM card. Once when you switch on a mobile phone with non accepted SIM card, It will automatically ask for an unlock code.
You can get the unlock code for a mobile phone either from the respective network provider or from any trusted vendor online like
TheUnlockArena.Com This site provides accurate unlock codes at affordable cost with easy unlocking guide. Good luck.

Apr 21, 2014 | Cell Phones

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Is it possible to unlock my phone without original carrier sim

Hi, It is not necessary that you should have the original SIM to unlock a mobile phone. You need an invalid SIM to unlock a mobile phone. Unlocking a mobile phone is easier using unlock code. You can get the unblock code for a mobile phone either from the respective network provider or from any trusted vendor online like This site provides accurate unlock codes for over thousands of mobile models with easy unlocking guide too. Good luck.

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1 Answer

Sim card not valid

There are two possibilities available.
1.There may be a problem in your Sim card so try another your mobile,wait few seconds and switch on.
2.Your mobile is locked to particular network provider.
If your problem persists after trying new sim card means definitely your mobile phone is restricted by some network so try to unlock your mobile phone.You can unlock your mobile phone using network unlock code.It's the best way to unlock your phone.If you need an unlock code for your Nokia 5800 XpressMusic phone visit I hope it will be very useful to you.

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How do you unlock a SIM card

Hey you can unlock your SIM card using the codes. This is the safe and easy way of unlocking.I found an free unlocking service at . It provides the free service for Nokia, LG ,Samsung, Sony etc. mobiles.If your mobile model is listed here, you can unlock your mobile easily.

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Hey iam trying to unlock my nokia 2220

There are many methods for unlocking mobile phones, that is through software, codes,calculator,some tools , hardware and all ,but in that codes are best one,because it is easy to understand the instructions and enter into your mobile ,just give your IMEI number, country & network lock ,then you can get the unlock code..........
For the good place to get the unlock code for your mobile phone, Just visit this site , It provides the step by step instructions and simple methods for unlocking mobile phones at a safe way...........
After you unlock your phone, you can use it with any other network's sim card.

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