1. vietkool's Avatar
    Hi,

    I have been waiting for awhile to make sure OS4 stable and will be unlocked for Tmobile used.
    I have 3Gs runing firmware 3.0 (I think is old modem). Can I use itune and upgrade to OS4 and can it be unlocked? or only can be jailbreak ? and all function such as MMS, SMS, internet, edge still work?
    Last edited by vietkool; 2010-08-04 at 09:28 PM.
    2010-08-04 09:25 PM
  2. Poseidon79's Avatar
    Since you have the old bootrom you can make a custom 4.0 firmware with Pwnage Tool (Mac) or sn0wbreeze (PC) then restore to that.
    2010-08-04 09:28 PM
  3. vietkool's Avatar
    all major functions work ok for OS4 ?
    2010-08-04 09:40 PM
  4. christoepurrr's Avatar
    wondering the same thing before I update
    2010-08-05 12:47 AM
  5. Five0nIt's Avatar
    Whats the old bootrom? I just got a 3GS today on firmware 3.1.2 (5.11.07)
    2010-08-05 06:32 AM
  6. vietkool's Avatar
    my firmware is 3.0, modem firmware 04.26.08
    2010-08-05 04:27 PM
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