Welcome to iPadForums.net Guest - Click Here to Register

Unkown error problem

This is a discussion on Unkown error problem within the iPad Hacking forums, part of the Apple iPad Discussions category; Hi everyone, After trawling the net for two days and finding no answer to my jail breaking problem I have resorted to asking for help, ...

iPadForums.net is the original Apple iPad Forum! Registered Users do not see these ads. Please Register - It's Free!
+ Reply to Thread
Results 1 to 3 of 3
  1. #1
    iPF Noob
    Member #
    143436
    Join Date
    Dec 2011
    Location
    London
    Posts
    2

    Unkown error problem

    Hi everyone,

    After trawling the net for two days and finding no answer to my jail breaking problem I have resorted to asking for help, I hope a reader of this forum may have some ideas! I have a jailbroken ipad 1 running a tethered version of 4.3.1. I'm eager to install the untethered version of 5.0.1 which I recently downloaded but every time I try to shift+restore I get the message 'This ipad cannot be restored because of an unknown error [21]'. When I check the apple support pages it suggests it might be a security problem but other than windows firewall (which I've disabled) I don't have any security programs? When googling the problem a lot of pages suggest using iREB. I downloaded this and put it into the necessary state and then retry but get the same message with error 1603?? Does anyone have any ideas, it's so frustrating?

  2. Ads


  3. #2
    Banned
    Member #
    12904
    Liked
    35 times
    Join Date
    Aug 2010
    Location
    Raleigh, NC USA
    Posts
    3,655
    Have you ever used a program called TinyUmbrella? If so, it sounds like your hosts file is screwed up.
    backup your iPad first.
    If you use TinyUmbrella, open it up and go to the "advanced" tab. Then uncheck the box "set hosts to Cydia on exit". Close TU.
    Now, plug your iPad into iTunes and use DFU. Press and hold the power and home button for 10 seconds, then, release the power button but keep holding the home button until iTunes recognizes a device in recovery mode. Then just hit "restore". No shift select junk.
    Then once the iPad is restored, just run the latest redsnow to jailbreak.

  4. #3
    iPF Noob
    Member #
    143436
    Join Date
    Dec 2011
    Location
    London
    Posts
    2
    Thanks for your response graywolf )) I have tiny umbrella so I'll give it a shot now and let you know what happens. Thanks again for the help!


Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Similar Threads

  1. dfu error
    By Max7150 in forum iPad Hacking
    Replies: 8
    Last Post: 02-22-2012, 01:33 PM
  2. PDF error
    By alanjdoolan in forum iPad Help
    Replies: 1
    Last Post: 12-04-2011, 04:31 PM
  3. Unkown error after accepting new licence terms...
    By DrHouse in forum iPad General Discussions
    Replies: 2
    Last Post: 10-12-2011, 06:08 AM
  4. Garageband problem or ipad2 touchscreen problem?
    By Summy73 in forum iPad Apps
    Replies: 3
    Last Post: 06-02-2011, 05:35 PM
  5. Error 28
    By Flakin' Jamaican in forum iPad Help
    Replies: 7
    Last Post: 12-15-2010, 08:36 PM

Search tags for this page

error 1603
,
error 21
,
ipad 2 cannot restore unknown error 21
,

ipad cannot be restored error 21

,
ipad cannot be restored unknown error (28)
,
ipad restore error 21
,
ipad restore issues unknown error
,

ipad unknown error 21

,

unable to restore ipad unknown error 21

,

unknown error 21 ipad

Click on a term to search for related topics.