1. Yo Vendo Fruta's Avatar
    Ok so a friend of mine wants to unjailbreak his phone cause he wants to be able to update to IOS5. I tried to jailbreak my phone earlier, but I think the problem with what I did was that I restored and updated. Thus after everything was done, it came up with a screen that said plug into iTunes and once I did iTunes told me it couldn't read my SIM card for some reason which is wrong because I have a legit SIM from AT&t. So I had to go to the apple store and thankfully they just straight up gave me a new iphone 4 which was just awesome. So can anyone help us unjailbreak his phone that is running 4.2.1, without updating to 4.3.3. He just wants his phone back to normal! Please help!
    06-07-2011 10:49 PM
  2. BLiNK's Avatar
    he can only restore back to 4.2.1 if he has blobs saved. use TU

    also, why not just go to 4.3.3? it's not that bad..
    06-08-2011 01:46 AM
  3. Massie's Avatar
    Yeah, if he wants to update to iOS5, what's the big deal about updating to 4.3.3 first?
    06-08-2011 01:48 AM
  4. Yo Vendo Fruta's Avatar
    Its fine if it updates but what im scared of doing is updating and restoring at the same time while its jailbroken will mess up his phone cause thats what happened to mine! So what im wondering is there any way to restore then after its restored and not jailbroken, then update it to 4.3.3
    06-08-2011 09:30 PM
  5. Massie's Avatar
    As said above, he could do it only with saved SHSH for 4.2.1. But you shouldn't have any trouble restoring to the 4.3.3 FW. That's exactly what I did after being jailbroken on 4.1. Just download the 4.3.3 ipsw, do a Shift+Restore in iTunes and let it do its thing.

    The only time it would mess up is if you're using the wrong firmware or have used Tiny Umbrella in the past to direct your computer to verify updates with Cydia instead of Apple, both of which are easy to check and correct.
    06-08-2011 11:00 PM
  6. Yo Vendo Fruta's Avatar
    im gona sound like a complete noob but does ipsw just mean the update?
    06-10-2011 12:41 AM
  7. Massie's Avatar
    Yeah, the ipsw is the software file. If you just click Update you don't need to worry about it but if you want to download it first and then do a Shift+Restore, you can find them all here:
    iClarified - iPhone - Where To Download iPhone Firmware Files From
    06-10-2011 12:50 AM
  8. Ipheuria's Avatar
    ipsw is the firmware software or iOS software. Instead of saying 4.3.3 software you would say 4.3.3 ipsw it's the file iTunes downloads and extracts. These guys are right I've been JBing for 4 years now and I'v gone back to stock a few times on my iPhones and iPad. It has always been a simple procedure just hook in to iTunes and hit restore or in your friends case since he's on 4.2.1 just hit upgrade which will remove the JB and will not reload the phone. However like Massie said if you've used Tiny Umbrella your hosts file is edited and will cause problems with the process so search on here for my username and threads I'v created look for the one "What if you can't upgrade through iTunes..." read through the first page and make sure the hosts file is good to go.

    You can also instead of connecting to iTunes and hitting upgrade just reload the OS manually. Go to iClarified - Apple News and Tutorials go to Tutorials, iPhone, Basics and Where can I get iPhone Firmware. Then download 4.3.3 and you'll need to know how to put the phone into DFU mode and then once it's in DFU mode open iTunes and hold down the Shift(Windows) or Options(Mac) key and hit restore. Then browse to the firmware(ipsw) you downloaded and let iTunes restore the phone. This way is more complicated though I'd say just connect and hit upgrade.
    06-10-2011 12:56 AM
  9. Yo Vendo Fruta's Avatar
    yeah he didn't use tiny umbrella he used green pois0n, so he should only have to plug it in and click "update" not "restore"?
    06-10-2011 12:17 PM
  10. Ipheuria's Avatar
    yep let us know how it goes, if you're worried then make sure he does a backup and sync right before.
    06-10-2011 05:41 PM
  11. Yo Vendo Fruta's Avatar
    okay thank you!
    06-12-2011 10:52 PM