How to unlock LG TU915 cell phone? - LG GD510 Cell Phone

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you may have a network problem you need to know if the phone is tri or quad band.

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This is RTK, try this software

XS++, with his world(GENERIC_WORLD_1_blob_fs_SEUS) copy the titles and search in google, you will get the link to download.

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you have to call them and ask for the "subsidy lock code" tell them that you were trying to use it in Mexico and it locked up, then you took it to a local store and they told you to call and get the subsidy lock code form AT&t once you have the 16 digit code dial 2945#*810# then enter the lock code and ta da!! the only issue is as far as i have seen so far you can't send mutli media messages

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if u bought it from at&t call them and u give them the imei number at the back of the phone and they will give u the code free.

SOURCE: LG TU915

HI If you are asking for pin contact your service provider , he will give you a default pin . If you try pin more than few predefined no of times your phone will ask PUK code which can also be given only by your service provider which is specific for each and every mobile number . Donot try PUK code many times or else your sim will be blocked and you will need a new sim.
Contact your sim customer care department over phone. Its free of cost to get the pin or puk no.
Go to the nearest service outlet of your service provider they can also help you.
There is no other go than the above procedure only your service provider can give it nobody else in this world nor any software.