12 Responses to Download iPhone 4.0 Custom Firmware (.iPSW) for iPhone 3G/3GS 4.0

  • themadhata says:

    ahhhh? mate where are the links for 4.0 gm custom ipsw for the 3gs?

  • justin says:

    dude where are the links! ppl realyl want this since many ppl dont hav macs and the modified pwnagetool is still mac only and i like many hav a 3gs n want to jailbreak (the unlock is already available)

  • asif says:

    where is the links?

  • DJACID says:


    iphone 3gs custom firmware,
    this one is for 02 only as it need to be activated

  • tom says:

    3gs 4.0 came out one june 21. still anxiously waiting

  • Paul says:

    If this custom IPSW was created with pwnage tool 4.0 there is an ibooks error, you will need to use one created with the newly released pwnage tool 4.0.1

  • Florian says:

    hi all,
    I have a 3gs running on a jailbreaked 3.1.2 (7D11) with baseband 05.11.07 an a serial starting with MC….
    Can I use the above mentioned custom ipsw for unlockers to upgrade to ios 4.0? Will the phone still be jailbroken and can I still use an unofficial carrier?

  • asif says:

    does that firm ware work if u are alredy on the 4.0

  • inum says:

    I have a jailbroke iphone 3g 3.1.2 and would like to upgrade to os 4 please tell me the steps to take to get this done. thanks so much.

  • Ytfirewall790 says:


  • Thepiousboy says:

    Hi all,

    I am seeking anyone’s help
    i have iphone 8gb 3g & i had updated to os4.1 unfortunately & now it is showing to connect to itunes & is stuck in recovery mode.
    Please help me in this regards

  • Ant_3omry says:

    hi thank men uare hala