I have a friend with a 2G iPhone still on 1.1.4 firmware, and he wants me to upgrade it for him without losing his jailbreak and unlock.

I dont know what method it was used before to be jailbroken or if it matters, but it has an app on it called "installer"

I'm mainly wondering if its possible to upgrade it to 3.0 now that 3.1 is out or if iTunes forces the newest update.

I have used redsn0w to jailbreak my own iPhone which has 3.0, so if I can get his iphone to that point then I think i'll be fine but I wasn't sure if it was possible to do.

I do not have a mac so I cant use the newest PwnageTool, but he does need to keep his unlock which as far as I know wont be a problem if its just upgraded to 3.0.

Any help would be appreciated.

- you can download a custom 3.x ipsw createt with pwnagetool an restore
- or you wait for sn0wbreeze

If I DL the iPhone1,1_3.0_7A341_Restore file and shift click in iTunes can I update it to 3.0 and then just use redsn0w or would that not work now that 3.1.2 is out?

The redsn0w method will work on an update to 3.0. If you want to update to 3.1.2, you will have to do an alternate method.

1.1.4 to 3.0 on iphone 2g is entirely possible and it will be OK.

- update your iphone 2g running 1.1.4 directly to firmware 3.0 downloaded from apple.
- use redsnow to jailbreak + unlock it (set phone autolock=never before you do this) and follow instruction. During the unlock process, do not interrupt it just let it run and finish.
- Once done, you will have a jailbroken & unlocked iphone2g

If you want to go to 3.1/3.1.2, you must create custom firmware using pwnagetool 3.1.4. Once you have the custom firmware, simply shift-click restore and select custom firmware to update. No need to DFU or recovery mode for this step.

Regarding snowbreeze mentioned in post#2 . It is vapor ware. DO NOT TRUST any other programs that is not released by the DEV TEAM or Geohot or Chronic-Dev

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