Discuss [Firmware] Trying to downgrade from 2.0 to 1.1.4 or another, got error 20 at the iPhone "2G" (Rev. 1) - Hackint0sh.org; Originally Posted by cloud75
Tried that also using both ibrickr og iliberty to get me ...
DUDE where were you 2 nights ago.....i was going crazy with the 20 message......
Originally Posted by cloud75
thanks for the info
thats what drives everybody crazy dfu and restore 2 different things........ i did know the difference
check baseband. when i was downgrading from iphone 2.0 beta 4 i ran into a lot of errors. Try the patched version of ZiPhone to downgrade your baseband. Ziphone Patched
Do not use ierase
also try using an earlier version of itunes, such as 7.5
if not just try googling downgrade from 2.0
worked for me.
I heard a lot of people benefit from this
Last edited by tomblanchard08; 07-14-2008 at 12:03 PM.
Reason: more info was avaibible
:iphone: iPhone OOTB 1.1.2 - WinPwned 1.1.4
:hack: Dell Inspiron 531
HP Compaq 6715B Notebook
:finder: Attempting Kalyway 10.5.2 OSX86 AMD
Tried that......still get the Error (20)
Originally Posted by addario
iTunes 7.5 does say that "there is an iPhone connected in :Recovery Mode"
I then Hold the <Shift> key and click Restore, open the 1.1.4 firmware.
The file extracts and the next screen gives me .....Unexpected Error (20).
I have tried this close to 100 times in the last 2 days and I keep getting the Unexpected Error (20).
When I try restoring the 1,1_2.0 Firmware. It works fine. No errors at all and I get the iTunes to ask me to Activate the iPhone (using iTunes 7.7).
Then I placed the Phone n DFU Mode again, used iTunes 7.5 and tried loadin firmware 1.1.4 again and again to keep getting the Error (20).
Is there anyone that has been able to down grade to 1.1.4 when you were getting the Error (20)? Not error 10** or Error 16** or any other error. Error (20)
This is becoming very frustrating.
Yep... I did... I was getting error 20 until I remembered that the damn DFU mode and Recovery Mode are two very different things... on DFU mode you should have your iPhone with a black screen and nothing else, no "connect to iTunes" showing on the phone's screen, no graphics, no nothing... just a black screen. If you get that working it *WILL* restore back to 1.1.4 on iTunes 7.5... guaranteed.
unfortunately I am at the spot where I get error 5 when using bootneuter and I always get error 1015 when I am using itunes to restore a firmware. Plus NO CARRIER
Is downgrade baseband also equals erase baseband in Ziphone? Or which tools can I use for that?
Originally Posted by XERXES
I already used bootneuter to downgrade my bootloader to 3.9, but unlock is missing and cannot be performed, I get an error 5.
Last edited by cloud75; 07-14-2008 at 03:40 PM.
What do you mean ???
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