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why do not you use search button b4 posting?
its ok
u can jailbreak wth redsn0w and unlock your device
Step 1. If you have not already, download the original firmware 3.1.2 and 3.1.3 on the desktop of your computer. In case of unlocking an iPhone EDGE, be sure you also have the two files Bootloader: "bl39.bin" and "bl46.bin"
Step 2. Connect the iPhone to PC or Mac and update your iPhone 2G to firmware 3.1.3
Step 3. Launch the application(redsn0w) and click on Browse. Select the original firmware 3.1.2 [select 3.1.2 not the 3.1.3] from the desktop of your computer and then click on Next
Step 4. It will start an automatic process (and very fast) which will be downloaded and patched the kernel.
use search button to download all you need in forum
gd luck
if my post helps you use thx button