unlock iOS4 on iPhone 3GS (3.1)

[immortalz]

Hello Friends,

I own an iPhone 3GS (JB+unlocked) with the 3.1 firmware. I wish to update my device to iOS4 and unlock. I would appreciate if you could give me some directions.

iPhone 3GS

Version: 3.1 (7C144)
Modem Firmware: 5.11.07
Model: MC134B

Thanks!!!

[iYeow]

Hello Friends,

I own an iPhone 3GS (JB+unlocked) with the 3.1 firmware. I wish to update my device to iOS4 and unlock. I would appreciate if you could give me some directions.

iPhone 3GS

Version: 3.1 (7C144)
Modem Firmware: 5.11.07
Model: MC134B

Thanks!!!

It all depends what you have : Old bootrom or New bootrom

Old bootrom : Not jailbroken by Spirit, restore to cfw iOS 4.0
New bootrom : No jailbreak at iOS 4.0 available yet.

[immortalz]

Hey,

Thanks for the reply. My device is the new bootrom. Also checked redsn0w dot com. No jailbreak available yet. Will wait!!

Thanks again.