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Possible to downgrade 3.1 to 3.0?
- Thread starter champnt
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Yeah I tried carrier ipcc for both 4.2 and 5.0 still wont work. Just ever since I upgraded to 3.1 just loss complete access. Any help on downgrading would be great.
Sorry can't help on the downgrade but just because you installed the ipcc doesn't mean they had the correct carrier setting in them..
Firmware 3.1 works, just can't get my mms to work. I am on a developers account.
MMS is not supported if you are on AT&T yet. just wait. I don't get why everyone wants to try to hack tethering and MMS. It's not like AT&T can't see that sort of thing. Why risk it?
1. Put the phone in DFU mode
2. Restore 3.0 firmware
3. Get error 1500 when finished
5. Hold BOTH the Power and the Home button for 15 seconds
6. Let go of both buttons
7. Press and hold the power button again for 2 seconds
This may need a few attempts (5-7) but then it should work.
BUT you will need to do steps 5-7 even if you restore the same firmware again.
2. Restore 3.0 firmware
3. Get error 1500 when finished
5. Hold BOTH the Power and the Home button for 15 seconds
6. Let go of both buttons
7. Press and hold the power button again for 2 seconds
This may need a few attempts (5-7) but then it should work.
BUT you will need to do steps 5-7 even if you restore the same firmware again.
Thanks for your reply.
1) I put it in DFU mode.
2) When I tried to restore 3.0 it said "The iPhone could not be restored because the firmware file is not compatible."
You didn't put a beta release on your main phones did you? That would just be a horrible idea IMO.
Seems like I would see about having a phone to test with.
Seems like I would see about having a phone to test with.
Did you download 3.0 firmware manually or from itunes?
firmware 2,1 is 3GS
firmware 1,2 is 3G
AFAIK
Hey, can you guys clarify how you downgraded? I have a 2G that accidentally got upgraded to FW 3.1. I've put it into DFU mode and I get the same message ---"he iPhone could not be restored because the firmware file is not compatible."
I don't get error 1500, I get 1015 or something like that, I know that's like baseband error or something. But I held both home and power button 15 seconds, then let go and held on till it turned out, but it's in restore mode or something, it doesn't seem to work. Am I missing a step, should I unplug the device from the itunes after it restores with an error. Am I suppose to restore straight out of apple and not hold down "ALT"? Thanks
how do you accidently upgrade your phone to a firmware thats not released to the general public?
