1. ckalli's Avatar
    found a way to downgrade from 4.3.5 to 4.3.3 without using SHSH blobs

    here's how:

    First you will need:

    Restore Files
    iOS 4.3.3 For your device
    iTunes 10.4.1

    Step 1: Go to C:\Windows\System32\drivers\etc , and replace "HOST" file with the one in "Restore Files" folder
    Step 2: Open redsn0w and jailbreak your device, Here is a video tutorial, but point to iOS 4.3.3 instead of 4.3.4.
    Step 3: Then the iPhone will stop on the recovery mode.
    Step 4: Open Tinyumbrella (can be found in "Restore Files" folder above), then click on your iPhone name at the left then press on Start Tss Server.
    Step 5: Open iTunes and restore your iPhone with iOS 4.3.3 firmware (Shift + Restore) then close it.
    Step 6: You will find error 1013, at this time you have to use Fixrecovery (can be found in "Restore Files" folder above).
    Step 7: Open iFaith (can be found in "Restore Files" folder above) and Save shsh file.
    Step 8: Open sn0wbreeze (can be found in "Restore Files" folder above) to create custom iOS 4.3.3 firmware and restore with it. Done.

    for people who run into problems. someone sorted it out as follows:


    I got it to work. I used a variation of those steps and it took several retries. Here's what I did:
    1. Upgraded iTunes
    2. Replaced with HOSTS file the provided HOSTS file above.
    3. Downloaded 4.3.3 IPSW
    4. Used redsn0w and selected the 4.3.3 IPSW. I left the default boxes selected.
    5. After this ran, it apparently just jailbroke my phone with version 4.3.5.
    6. Ran redsn0w again the exact same way and it ended up putting the phone into DFU rather than showing 4.3.5 again.
    7. Loaded sn0wbreeze and made a custom 4.3.3 IPSW.
    8. Loaded Tinyumbrella and turned on the TSS server.
    9. Loaded iTunes and did a restore (phone still in DFU) with the new custom IPSW.
    10. iTunes did not have a 1xxx error. However the phone went into recovery mode.
    11. Put phone back into DFU mode and restored again with custom IPSW again and it worked!

    I never needed to save the SHSH blob files.

    from the geohot.us website.
    08-25-2011 09:02 AM
  2. Massie's Avatar
    None of your links show up when you just copy and paste. Here are the original instructions (with file download links) if anyone is going to try this: Downgrade iOS 4.3.5 To 4.3.3, No SHSH Blobs Needed
    08-25-2011 12:19 PM
  3. umarimtiaz33's Avatar
    it seems the files have been deleted from the website because of copyright
    Last edited by umarimtiaz33; 09-22-2011 at 09:46 AM.
    08-26-2011 05:53 AM
  4. Siro's Avatar
    Does this process even work most of the user comments seem to suggest it fails most of the time!
    08-26-2011 09:56 AM
  5. ckalli's Avatar
    if u have the SHSH blobs use it..! if not.. try the above.
    08-26-2011 12:09 PM
  6. jivarro's Avatar
    Many thanks, I have nothing but problems out of 4.3.5
    08-29-2011 08:23 PM
  7. umarimtiaz33's Avatar
    Anyone checked that tutorial workin??
    08-30-2011 04:26 AM
  8. umarimtiaz33's Avatar
    i have gone through this tutorial but all in vain,i didnt get my iPhone downgrade from 4.3.5 to 4.3.3
    Last edited by umarimtiaz33; 09-22-2011 at 09:42 AM.
    08-30-2011 04:33 AM
  9. Lynx's Avatar
    Will this work from downgrading 4.2.10 to 4.2.8?
    08-30-2011 01:47 PM
  10. tonyle43's Avatar
    the link don't show up
    09-15-2013 07:09 PM