[iPhone3,1] powdersn0w not working below iOS 4.3 (not included)

[alex-ui]

I've used the kit to downgrade from 7.1.2, and it worked flawlessly with 4.3. However, I initially tried with 4.0, and later with 4.1, etc. and it didn't work.

The result with these versions is simply a stuck recovery screen and an error saying something between the lines "could not connect to device in restore mode". Unlike a successful downgrade, it gets stuck in the recovery screen during this final process.

After that error, it still says that the downgrade was done and the iOS version output says the correct downgraded version, but the boot logo and recovery screen designs are from 7, so I'm sure it didn't work (can't boot anyways), so the step that modifies the IPhone's info.plist is done at least.

I read that there were issues with 4.2.1 (I skipped that one), making it unbootable, and that these old versions could be unstable, but I didn't expect them to act like 4.2.1.

Is this fixable?

[LukeZGD]

is your device a white iphone 4 by any chance? since those cannot downgrade below 4.3

[alex-ui]

is your device a white iphone 4 by any chance? since those cannot downgrade below 4.3

No, it's a black iPhone 4.

[alex-ui]

Okay, now I managed to downgrade to 4.1, anything below it says "DONE!" as in successful, but the phone has a white screen for some reason.

[LukeZGD]

i forgot this discussion until just now, oops

unfortunately this just means that your device is too new for lower ios 4 versions, i think some devices are manufactured with newer incompatible nands, including your device

this also applies to other devices like some 3gs'es unable to restore to ios 3/4, 8gb 4's unable to restore to all of ios 4, some 4s'es unable to restore to ios 6, etc.

[alex-ui]

I thought 3GS could restore to some 4 version since it was signed for some issue with PowerPCs.

Anyways, I should note that this iPhone is not the same one. The first one simply returns an error below 4.3 (black GSM), the "could not connect to the iPhone while on restore" thing, while this one just goes white on 4.0.x.