iPhone 3GS iPhone 3GS. Unlock possible?

Discussion in 'iPhone' started by thegamerocks06, Jul 1, 2010.

  1. thegamerocks06

    thegamerocks06 New Member

    Joined:
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    Device:
    2G iPod touch
    I got a friends iPhone 3GS. It was already in recovery mode. I restored it to a 4.0 firmware.

    Now I can't use it, as it says the "Sim is Not Supported". Obviously I need an unlock. Any way I can downgrade to 3.1.3 firmware and unlock it?

    Also how can I figure out my bootroom if I can't even turn on the phone?
  2. Aestysu

    Aestysu Member

    Joined:
    Jan 1, 2009
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    Device:
    iPhone 3GS (Black)
    You need SHSH blobs saved on cydia/your computer to downgrade.

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