Results 1 to 4 of 4
  1. #1

    Member Since
    Sep 21, 2011
    Can't downgrade iPhone 4 ios 4.0
    I have the first gen iphone 4 with ios 5.9.1. The ios 5.0 is slow & buggy. I want to downgrade to ios 4.0. But it just won't install on my iphone.

  2. #2

    mrplow's Avatar
    Member Since
    Oct 01, 2007
    Mac Mini i5 (2014 High Sierra), iPhone X, Apple Watch, iPad Pro 12.9, AppleTV (4)
    No, it won't you're correct.

    v4 is no longer signed by Apple.

    In order to downgrade you need SHSH blobs from the version you want to downgrade to, the IPSW file for that version and you need to be prepared to play around with your hosts file to stop iTunes dialing home for the downgrade.

    I've not heard of, or experienced (I have 2 iPads, 2 iPhone 4 and an iPhone 4s all on iOS 5.1.1 in the household) any significant iOS5 bugs. Certainly not enough to warrant ditching the features of 5 to go back to 4.

    What issues are you having in particular?

    Have you tried a hard reset - backup - sync - restore - sync ?

    Please use the reputation system if you think you've been helped - bottom left of this post

  3. #3

    Raz0rEdge's Avatar
    Member Since
    Jul 17, 2009
    27" i7 iMac, 15" Macbook Pro TB, 13" Macbook Air, iPhone 6S, iPod Nano 7th Gen
    iOS 5 is very stable on my iPhone 4, as mrplow suggested, you might want to try a restore first before trying to downgrade to iOS 4..
    Mac-Forums is shutting down in the near future. Read this thread to learn more.


  4. #4
    No idea what you mean by "iOS 5 is slow and buggy." That's not the experience of the millions who have bought the iPhone of late (and the millions more who've upgraded).

    I'd say that problem is likely on your end, but you may also want to do a reset and reinstall and check with a tech if it continues being a poor experience for you.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. I want to downgrade back to iOS 5
    By Amguitarman in forum iOS and Apps
    Replies: 6
    Last Post: 09-22-2012, 06:47 PM
  2. IOS 5 downgrade without shsh blobs possible (maybe)
    By Vampirekid.13 in forum iOS and Apps
    Replies: 0
    Last Post: 11-30-2011, 10:39 AM
  3. Is it possible to downgrade iphone 4s 4.0.2
    By csm84 in forum iOS and Apps
    Replies: 1
    Last Post: 09-03-2010, 11:17 AM
  4. Unable to Downgrade (Restore) iPhone 3GS from iOS 4.1 to iOS 4.0
    By iCoffee in forum iPhone Hardware and Accessories
    Replies: 9
    Last Post: 08-05-2010, 09:34 AM
  5. downgrade iphone????
    By ahnelo123 in forum iPhone Hardware and Accessories
    Replies: 4
    Last Post: 01-22-2008, 08:14 PM

Posting Permissions

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