Page 2 of 2 FirstFirst 12
Results 11 to 17 of 17
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 ...
  1. #11
    Newbie Array

    Join Date
    Feb 2008
    Posts
    3
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    Quote Originally Posted by cloud75 View Post
    Tried that also using both ibrickr og iliberty to get me into DFU still error 20.

    I also tried Mac now and same result
    DUDE where were you 2 nights ago.....i was going crazy with the 20 message......
    thanks for the info
    thats what drives everybody crazy dfu and restore 2 different things........ i did know the difference
    thanks again


  2. #12
    Newbie Array tomblanchard08's Avatar

    Join Date
    May 2008
    Posts
    7
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Post

    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.

    Edit
    Try http://www.iclarified.com/entry/index.php?enid=1504
    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
    Tom Blanchard
    ------------------------------------------------------------------------
    :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

  3. #13
    Newbie Array

    Join Date
    Jul 2008
    Posts
    3
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    Quote Originally Posted by addario View Post
    Hi there...

    I've got the same until I realise that many people, including me, mistake "Restore Mode" for "DFU Mode".

    If you are getting error 20 (Version you are trying to load is older than the one you already have) check if you are really on DFU.

    A lot of people seem to think that DFU mod and Recovery mode on the iPhone are the same. Apart from the blank screen in DFU mode and the iTunes/Dock Cable logo this is another, greater difference.

    When you put your phone in Recovery mode the iPhone still loads up a mac "OS" if you will. Whereas in DFU mode the iPhone does not load up the OS. This means that communication between the iPhone and iTunes in DFU mode is minimal - therefore iTunes will not randomly decide to interrupt you while downgrading firmware etc.

    To put your phone in recovery mode simply:

    1. Switch off the iPhone.
    2. Hold the home button as you connect your iPhone to your PC/Mac.
    3. Continue to hold the home button untill you see the iTunes/Dock Cable logo.


    To put your iPhone in to DFU mode:

    1. Turn on iPhone
    2. Connect to PC/Mac
    3. Open iTunes
    4. Hold down power and home buttons
    5. Wait untill red slider appears to shut down iPhone - keep holding the buttons.
    6.Wait untill the iPhone shuts down
    7. Release power button, keep home button pressed (if the Apple logo appeared you didn't release the power button quick enough - try again!)
    8. Wait about 7 seconds - iTunes should say there is an iPhone connected in "restore mode"
    Tried that......still get the Error (20)

    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.

  4. #14
    Newbie Array

    Join Date
    Jul 2008
    Posts
    8
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    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.

  5. #15
    Professional Array

    Join Date
    Dec 2007
    Posts
    50
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    9

    Default

    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


  6. #16
    Professional Array

    Join Date
    Dec 2007
    Posts
    50
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    9

    Default

    Quote Originally Posted by XERXES View Post

    If you get 1015 Error - all OK. downgrade baseband and restore 114 again - after unlock with any software.
    Is downgrade baseband also equals erase baseband in Ziphone? Or which tools can I use for that?

    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.

  7. #17
    Professional Array

    Join Date
    Dec 2007
    Posts
    50
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    9

    Default

    Quote Originally Posted by kirk1gr View Post
    DUDE where were you 2 nights ago.....i was going crazy with the 20 message......
    thanks for the info
    thats what drives everybody crazy dfu and restore 2 different things........ i did know the difference
    thanks again
    What do you mean ???

 

 
Page 2 of 2 FirstFirst 12

Similar Threads

  1. [1.1.2] iTunes reports error when trying to upgrade / downgrade (Error 6)
    By leepriestenator in forum iPhone "2G" (Rev. 1)
    Replies: 5
    Last Post: 02-20-2008, 07:40 PM
  2. downgrade 1.1.3 error
    By stalloneds in forum iPhone "2G" (Rev. 1)
    Replies: 3
    Last Post: 02-10-2008, 07:56 PM
  3. [1.1.2 OTB] Error during 1.1.1 downgrade
    By IamIronMan in forum iPhone "2G" (Rev. 1)
    Replies: 2
    Last Post: 01-11-2008, 09:56 PM
  4. Downgrade from 1.1.1 got error msg
    By HeartMan in forum iPhone "2G" (Rev. 1)
    Replies: 3
    Last Post: 10-01-2007, 01:57 PM
  5. Downgrade to firmware 1.0
    By nutdhanai in forum General
    Replies: 12
    Last Post: 08-17-2007, 12:16 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin®
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Friendly URLs by vBSEO
(c) 2006-2012 Hackint0sh.org
All times are GMT +2. The time now is 06:50 PM.
twitter, follow us!