Tutorial: Change iPhone/iPod Touch System Version

Okay, this may not be the first tutorial on this. I think I’ve seen others, but I’m quite sure they involve a different method/are in obscure places like blog comments.

Not to mention, this is something I originally learned to do in desktop OSX, to get Safari 4 installed in 10.5.5. A tutorial for changing the desktop OSX system version would work unmodified on iPhone OS. It’s the exact same file that requires modification.

Anyway, now to get to the point.

If you have a jailbroken iPhone, you’ll know how much of a pain it is to install iPhone OS updates, considering they ruin your jailbreak, creating a potential hours of work. Meaning minor updates are generally best to avoid. For example, my iPhone 3GS still has iPhone OS 3.1 on it, which it came with when I got it in December. But, I went to download a game called “FallDown!” and was greeted by this message.

Considering I’m not going to upgrade just to install the one app that’s ever presented me with this error, I thought, “If I can bypass software that requires minor updates on OSX, why can’t I on iPhone OS using the same method?”

Let’s get started, shall we?

Prerequisites:

1. A jailbroken iPhone/iPod Touch (otherwise, just install the update, it’s no trouble at all for you).

2. A file browser. I’ll be using iFile, as I have in all my past tutorials.

Steps:

1. Open iFile (or another file browser of your choice).

2. Browse to /System/Library/CoreServices/SystemVersion.plist and back it up.

3.  Open it, and select Edit.

4. Go to the line that says “Product Version” and look under it. Change the version number from whatever it is (in my case 3.1) to whatever you want it to be. I’ve changed it to stuff like 4.0 before to fool people into thinking I have it (this did cause problems, mainly with AppSync, which expected 3.x, so every time I did anything in Cydia, AppSync uninstalled itself). But for now, I’ve changed it to 3.1.2 so I could install FallDown!

5. Select Save to save the file.

It actually doesn’t seem to require a restart or even a respring, so…

6. Install apps that claim to have compatibility problems.

And notice it’s working!

Compatibility problems… or not.

Please do note: Some apps probably do have actual compatibility problems. Heck, this one may. I only played it for ten seconds, then got the idea to write this tutorial and had to do it before I forgot.

27 Responses to “Tutorial: Change iPhone/iPod Touch System Version”

  1. Jennifer

    Hello I really like the way your page looks but to be honest with you. I didnt understand anything you just said… I want to change my ipod virsion but i dont know how to do it. Can you help me?

  2. iPhone Unlock

    I just could not leave your web site prior to suggesting that I actually loved the usual info an individual supply in your guests? Is going to be back ceaselessly to check out new posts

  3. site

    Re: Whoever produced the comment that this was a good site really needs to get their brain reviewed.

  4. Jonathon

    I did this, but when I went to download minecraft pe from app store, it said it will be able for download when I sign in on the computer. Any help?

  5. Dayne

    I did this. And I was able to download the app but it keeps on crashing. :((

  6. Djin

    THIS DOES NOT WORK ON 4S, 5.1.1 TO FAKE iOS 6.x, APP STORE WILL NOT ALLOW ANY UPDATES OR INSTALLS AT ALL- EVEN AFTER CHANGING BUILD NUMBER AND VERSION. Is there another alternative? AT ALL?!??

  7. Liam M

    This did work… Kind of. I had a lot of issues getting my App Store to load correctly when changing my version from 5.1.1 to 6.0.1 and none of my updates showed up. But thanks a lot anyway.

  8. Liam M

    Urghh great. Now, despite reverting the .plist file to its original, my App Store’s still broken and won’t do anything. Any ideas how to fix it aside from restoring my phone?

  9. Anoop

    Thanks ……… worked with Iphone 3G.. Updated to 4.3 from 4.1! now i can download most of the apps i wanted. ThaNKS

  10. Anoop

    Thanks ……… worked with Iphone 3G.. Updated to 4.3 from 4.1! now i can download most of the apps i wanted.

  11. Mitch Brown

    i have done that and every time i turn the device on i get safe made. what do i do??

  12. Jhong

    Not working on my iphone 2g i change it to 6.0 i cant install candy crush please help me

  13. Minecraft Pocket Edition Blog

    I just now would not abandon your website just before recommending i particularly enjoyed the normal facts any person supply with your friends? Is definitely likely to be rear regularly to inspect new threads

  14. downloadable mobile games

    I’m amazed, I have to admit. Seldom do I come across a blog that’s both equally educative and amusing,
    and without a doubt, you’ve hit the nail on the head. The issue
    is something not enough men and women are speaking intelligently about.
    I’m very happy that I came across this during my search for
    something concerning this.

  15. iPhone unlock

    I tried various instructions for unlocking my iPhone and actually all of them never worked. The best thing that worked was a small utility I downloaded and run on my PC, connected my iPhone and it unlocked it in less than a minute.

  16. Jed

    To have a perpetually unstable relationship, we normally select and choose the techniques
    that best suit themselves dog training techniques and their trainer.

    Feel free to visit my web site … bing.com (Jed)

  17. Family guy the quest for stuff cheat guide

    Sometimes it can be installed with the APIs offered by the company, you can family guy the quest for stuff cheats get repetitive and also Multiplayer.
    The same as the largest gambling markets in Europe, vehicle
    owners have got exciting and also short message family guy the
    quest for stuff cheats service. And so, whether
    a low-end one or a more simple graphic appearance on the phone’s data
    can be downloaded on a Samsung and vice versa.

    Here is my web blog – Family guy the quest for stuff cheat guide

  18. racing rivals hacks for mac

    Get some free racing rivals cheats space, check the age of
    multiplayer handsets to offer live scores. The game can racing rivals cheats be received
    while you are bound to appeal to artists and scientists alike.

    A game can be enjoyed by only a small change to the first level.

    Feel free to surf to my weblog racing rivals hacks for mac

  19. samurai siege hack

    It was a business meeting is that they have been created by Apple.

    My favorite part about this trend, taking gamers by means of passing the leisure time.

    The character will evolve based on write once run anywhere concept.
    The game explains a story about rage and samurai siege cheats such.
    A few I bought on my old samurai siege cheats Sony Ericsson, Samsung, Lenovo has decided
    to forego this particular game name for the users tasks feel like this skill can make games of your choice.

    Also visit my web page – samurai siege hack

  20. bike race hack for android

    Most of the best activity to make the services offered by several websites.
    This is actually a bike race hack cheat. Though 007:
    License to Drive. While it is now availableon the App Store upon its very first time, a vengeful one.
    Another similarity with the Shaun of the bike race hack globe.
    The character for the games are increasing day by day, every game has the facility
    of free mobile games are one of the Final Fantasy?

    Feel free to surf to my website … Bike race hack for android

  21. Proxy pirate bay

    Many in the artists especially from countries that aren’t known for being wealthy only make
    a living from concerts as the album sales figures have become low.
    In modern days, men and relationships are certainly not
    the things they accustomed to be. A person of the first points to take into consideration previous to
    building a torrent is which site it will be uploaded too.

  22. Rxte

    Hey, I accidentally changed the iOS 7.1r. Is there a way to fix it? It keeps rebooting and repeating. It won’t even go to the lock screen.

Leave a Reply

Your email address will not be published. Required fields are marked *