Need to unlock samsung t609 to work with my at&t sim card is this possible

Its possible by codes.Get the unlocking code for your mobile from http://www.simpleunlocking.com/ .It helps to unlock your mobile easily.

You can get the unlocking service here http://www.theunlockspot.com/samsung-sgh-t609/rs10wp9/ at cheap price.

Dear friends,
I need to remove the SIM Lock from a Samsung SGH-T609.
Please, help me, I'm a cuban with small possibilities in the network.
Thanks in advance,
Roche

I bought a new samsung t239,anytime I insert a sim card it reads wrong sim card.

yes you can, you just need to call T-Mobile to get the unlock code for you to use a different Sim card or service for your phone.

If you mean unlocking as in using it with other service providers (such as tmobile), then just call att and say that you need to unlock the phone to use a foreign sim card. They should give you a code to put into your phone that unlocks it to all service providers.  it worked for my dad when he left the country and had to use another sim card.
hope this helped!

take it to a shop so tech can restore your cellphone to open line

goodluck

I assume you are asking about unlocking your phone. If you are a tmobile user than any tmobile sim will work in your phone even if your phone is locked. When a foreign or different compatible sim is inserted your phone will ask for the unlock code if your phone is locked. When you have an unlocked phone it automatically accepts the sim and does not ask for the unlock code since your phone is unlocked.

To get your IMEI no your mobile you need to use the following code *#06# This will display the IMEI number of your mobile
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How to Unlock Samsung T619:
What you need to start is your Samsung T619 and a NON TMobile sim card. You can borrow a friend’s if you need one.

1 - Power the phone off
2. Remove the TMobile sim card
3. Insert the NON-TMobile sim card and replace the battery.
4- Turn on the phone, “wrong sim” should appear on the screen.
5-Dial *2767*3855# and wait. It could take the phone a few seconds to reboot. The phone will reboot,and the non T-Mobile SIM card in the phone will work,but this is only a TEMPORARY unlock step
6-Dial <span>*7465625*638*00000000*00000000# phone will say it is personalized.
7-Dial #7465625*638*00000000# The phone is now unlocked permanently.
8-Dial *#7465625# to check the lock status.

How do i unlock my sam sung tmobile phone to work in GUYANA wen it is say wrong sim.