You may check this link. I unlocked mine successfully and I found this easier than other methods.

1. Download iTunes 7.4.1.2

2. Dock your iPhone and connect it to windows, and press Power+Home button for 25 seconds until you see a yellow triangle.

Your iphone will boot up in restore mode. iTunes will ask if you want to upgrade to Firmware 1.02.

Follow the steps at itune and upgrade the firmware to 1.02. To check your firmware version. iPhone->Settings->General->About-> Version 1.02 (1C28)

3. Download Apptap

4. Confirm your iTune software is not running. Press Crt+Alt+Del Task Manager and end the process of itunes and itunes helper.

5. Dock your iPhone and run Apptap. It will jailbreak your iphone and install installer.app on your iphone.

6. Download Paycay

7. Run the "activate batch" file. It will fix your youtube problem. After it finishes, press the power button for a few seconds. Slide to power off the iphone.

------------------- Iphone is now activated with youtube fixed. Stop here if you are going to use with AT&T sim card.------------------------------

8. Download iBrickr

9. Extract the zip file and run ibrickr.exe. Click on Applications. Follow the instruction to install PXL. After PXL installed, you will be able to browse applications

10. Click Browse applications. Click on AnySim v.1.01 and it will install AnySim on your iPhone.

11. Set your unlock settings to Never (iPhone ->Settings-> General-> Autolock -> Never)

12. Click anySim on your iPhone and click unlock. Wait and you will get an error message "The flash operation succeeded but the unlock commands failed.

You might want to check the basband manully using minicom" Don't worry about it. Power off your iPhone and replace the sim card and your iPhone is unlocked.

8. Download iBrickr

9. Extract the zip file and run ibrickr.exe. Click on Applications. Follow the instruction to install PXL. After PXL installed, you will be able to browse applications

10. Click Browse applications. Click on AnySim v.1.01 and it will install AnySim on your iPhone.
QUOTE]

Thanks for the instruction, but got a question, what if I don't have internet connection during step 10? how do I get the anysim into the phone?
Thanks

Originally Posted by aaronliu

8. Download iBrickr

9. Extract the zip file and run ibrickr.exe. Click on Applications. Follow the instruction to install PXL. After PXL installed, you will be able to browse applications

10. Click Browse applications. Click on AnySim v.1.01 and it will install AnySim on your iPhone.
QUOTE]

Thanks for the instruction, but got a question, what if I don't have internet connection during step 10? how do I get the anysim into the phone?
Thanks

You can download the pxl file
http://iphone.exploit.org/pxl/anySIM-1.01.pxl

and click "Install from PXL file"

You dont have to install Apptap to jailbrake "free iPhone" just use iBrickr to free the iphone.

Originally Posted by geek.dll

You dont have to install Apptap to jailbrake "free iPhone" just use iBrickr to free the iphone.

Use Indepence. That way you have Youtube Working.

Huh? I tot ibrick doesn't work with itune 7.4?
Nate updated the ibrick?

i have one question, after i unlock it and let say i use a tmobile simcard but doesn't have the data plan, can i still be able to switch back to ATT simcard, and still able to use internet and virtual voicemail?

Does ibrickr v0.8 work with itunes 7.4.x ???
What about the att sim verification on itunes 7.4.1 that blocked iphone syncing on non-att sim cards? Is it for real or one can use a ´hacked´ iphone with the latest itunes without worries?? thx!!!