If you are an iPhone 3GS user who has accidentally upgraded to iPhone OS 3.1 as you weren’t aware of the warning given by the iPhone Dev Team to avoid upgrading to iPhone OS 3.1 then there is some more bad news.
Folks at BigBoss are reporting that iPhone 3GS users who had accidentally upgraded to iPhone OS 3.1 can’t downgrade to iPhone OS 3.0 or iPhone OS 3.0.1.
They are reporting that Apple has stopped signing iPhone OS 3.0 and iPhone 3.0.1 firmware files, which means that iPhone 3GS users cannot restore using any firmware files. They can only restore using iPhone OS 3.1 firmware file.
According to them:
“1) If you have an iPhone 3g or 2g, you are fine and should be able to restore.
2) If you have a 3gs, you can only restore 3.1 (and kiss your jailbreak good bye). If you did not get an IBSS/IBEC signature before now and you restore, you may never be able to jailbreak again.
3) If you have an iPhone 3GS and you used Cydia to save your TSS or did purplera1n or similar a while back and saved your IBEC, then you will be able to restore in the near future, but you must wait for someone smart to write a utility that will let you do it. Chances are good that such a utility will come out in a couple days. If you can be patient and wait, do so. No one wrote this utility prior to this because we were not sure if Apple would actually stop signing 3.0 - only that they *could*.”
There might be some glimmer of hope for iPhone 3GS users as they have also pointed out to a tweet by chronicdevteam, which claims that iPhone OS 3.1 GM is still vulnerable.
It looks like the cat and mouse game between Apple and iPhone Hacking community has got more interesting with Apple making it even more difficult with the introduction of iPhone 3GS and now by not signing previous iPhone OS firmware files.
We’ll keep you posted on this developing story so please stay tuned here at iPhone Hacks.
[via BigBoss]
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this is making me wish i didnt get an iphone 3gs the day it come out now… has so many plus points but not being able to jailbreak because i didnt get my bes files…. if i cant jailbreak, its getting sold.. and im sure im not the only one.
I'm not sure I follow all the technical details, but it really is too bad that Apple isn't more like TiVo. TiVo doesn't support hacking or hacked boxes, but they don't lock you out either. They pretty much look the other way and let us do what we want. The percentage of people who actually hack their TiVo's (or iPhones) is pretty low anyway – it's not going to hurt the companies, as TiVo has discovered, and might actually benefit good will in the long run. I hope my 3GS isn't in danger – I would NOT want to unjailbreak it.
OH and what exactly do they mean when 3.1 is still vulnerable?
Don't think that will work. According to the experts, any time you restore
your iPhone, it sends a signal to the Apple server to verify the firmware.
Apple is no longer verifying older firmware files so you will get an error.
It means that someone might figure out a way to jailbreak iPhone 3GS running
iPhone OS 3.1 without the need of IBSS files.
Hi,
unfortunately i have updated my 3G to 3.10 with the new itunes 9.after i while i managed to downgrade to 3.0 & jailbreak the phone and tried to unlock it with ultrasn0w. But it was not possible to get a signal of my provider because the baseband has changed to ICE2-05.11.07.
i also have 5.80 as bootloader
but the fuzzy tool does not work with this baseband. Do you have a solution for me to downgrade the baseband ?
thanks a lot and best regards
nightwalker
Ok thanks. That made the bad news be less bad lol
Once the baseband is upgraded it's almost impossable to downgrade it since baseband updates can't be reverted to an earlier state. The only chance you have is to wait for dev team to find another hole that will allow unlocking on that baseband version
I upgraded to 3.1 and than downgraded to 3.0 =. Here are the steps.
1: Option click restore and select Firmware 3.0
2: Restore will fail (1015 error or something like that.) <– It's good!
3: Will put the phone into "rescue" mode. Repeat Step 2.
4: Your phone will fail to restore again. (Same error I believe)
5: Open purplerain and "Make it rain".
6: BAM! Restored to 3.0
Enjoy!
As Mo (thanks Mo) has mentioned, unfortunately at this point of time there
is no solution available to downgrade the baseband firmware.
hey i have a iphone 3G 16gb/jailbroken and unlocked. i stupidly upgraded to 3.1. do you think your purplera1n trick is gonna work for me?
Can anyone verify that this works and jailbreak+unlock works afterwards? My iphone is stuck in a frozen black screen loop on startup and don't want to risk updating to 3.1 yet…
I was able to unlock my 2G , which had 3.1 firmware, Last night and make it work on my local carrier.
mine s an iphone 3gs unlocked by default…. so if i upgrade to os 3.1 , wud i be able to just jailbreak it…????
I have a Iphone 3g and i upgraded to the OS 3.1, the author said that 3G phones can be downgraded. how do i downgrade to OS 3.0?
Might the solution be to take the focus off the phone and put it onto hacking iTunes to allow it to update phones with unsigned firmwares?
Thanks for the info, even i don´t really like what you wrote..
this means i should sell it to someone with a AT&T SIM card so he can keep on using it ?
for me its useless right now …
how did you do that ?
have you also had the new modem firmware after your update to 3.10 ?
mine is the 5.11.07 now and ther is no way to downgrad to the old one…
I agree with TG, i have tried to disconect from the interent as the restore starts to keep from verifiying the signature, but it fails with a 3004, i also tried to copy nd rename a 3.0 ipsw, but Itunes is smart enough to see that and force another download.
somhow getting around that Signature check would help all the 3GS users!
Buenas, no hay forma entonces de bajar el firmware 05.11.07 y abrir las bandas??
para venezuela
how did u do it i upgraded my iphone 2g and i couldnt pass the activation screen so it didnt activate it just said slide to unlock can you plese help mee i dont have an AT&t contract i have a prepaid att sim card which i thought it should activate since its att but it didnt
With apple not digitally signing the older firmware files, I don't think 3G users can revert back to 3.0 or 3.0.1 either. I have a 3G that I inadvertently upgraded to 3.1 and I can't get it back to 3.0.1
I have a new 3GS that I just got. It is still on 3.0.1 and is not jailbroken. I can still jailbreak it and get the IBSS files?
Dan
Is your phone a 3GS? Does it have the black screen with White apple logo?
Have you just installed something from cydia and been asked to "restart springboard"?
If so don't worry, mine does this.
Here's how I fix it.
Press and hold power
Hold home
As soon as the screen goes blank let go of both buttons, if you don't the phone will end up in DFU mode forcing the 3.1 update.
Turn your phone back on, you may need to do this 2 or 3 times, leave it for about 5 mins each time.
The reason is, you prob have a lot of stuff installed, and it can take a while to complete.
There have been no changes to the 2G Modem firmware in almost 2 years, hence no impact on 2G phones, they can be jailbroken and unlocked.
I believe the answer to that is "no". Capturing the IBSS files requires you to restore your phone. As of now Apple has stopped signing the 3.0 and 3.01 firmware for 3GS, it will force you to upgrade to 3.1.
My suggestion just wait for a few days. I read on the bigboss.org site that a hole may have been found to jailbreak 3.1, although too eary to say.
Besides you are on 3g phone so you can restore back to 3.0 software, this problem only affects users that are on 3GS software as apple has stopped digitally signing 3.0 or 3.01 firmware for 3GS only. Hope this helps.
Sorry one more comment. Since you upgraded to 3.1, even if you downgrade your baseband will not get downgraded, so unless a hole is found to patch the modem firmware your unlock will not work anymore.
so does this mean that anyone that buys a 3gs frm now on that has preloaded 3.1 will not be able to jailbreak?
I have a 3GS on 3.0 and am considering restoring for fixing some issues: can I still do this?
I have the files, I've backed up the TSS with cydia, and I've never upgraded to 3.1 f/w.
this is the first time i updated my iphone 2g…can i jailbreak my iphone 2g?
what does "But iPhone OS 3.1 Still Vulnerable" mean?
In a word No.
Even though the TSS has been stored there is no "proof" that this is what you will need to unlock 3.1. Best thing to do is just wait for iPhone dev team to work their magic and release a hack.
Shame really coz I need to restore my 3GS before it goes for a new screen fitted.
Yannos.
It means that the iPhone Hacking community might figure out a way to
jailbreak iPhone OS 3.1, which is currently not possible.
Hi all,
Just a quick question… I have just got a replacement 3GS from Apple on 3.01. Can I jailbreak with 3.01 without going through the restore process? Or does it need to be 3.0?
Apple bastards, can't believe it! I originally bought my iphone 2 weeks ago, found this site and my iphone was jailbroken in 10 min. Now with my replacement the guidelines don't work. I'm outraged.
Please help, Thanks!
Hi!
To all
I have a 3gs os 3.0 on my iphone and jailbroken, and cydia has installed an ECID SHSH on file on my 3gs iphone.
and would like to upgrade to os 3.01,through pwnage. with iPhone2,1_3.0.1_7A400_Restore.ipsw downloaded from Iclarified.
Is it possible to upgrade my 3gs 3.00 to 3.01 without any problem?
please somebody reply!
Question. I updated my Iphone 3G to OS 3.1 on the 9th without knowing there was no Jailbreak utility available. I followed the steps and was able to successfully downgrade the OS back to 3.0.1 but my phone would not activate and I could not get a signal from AT&T (my provider). I dont care about unlocking, just jailbreaking but I need a signal obviously to communicate. Is there any way to fix this?
Not possible now,
Apple have stopped signing 3.0 and 3.0.1 so if you point iTunes to one of these IPSW's then you will force the 3.1 update.
I have my ECID on cydia, and also grabbed my IBEC & IBSS ( which cannot be done now ) but will not upgrade until the iPhone dev team release something.
Yannos.
If i purchase a new iphone 3gs, is there anyway i can get it jailbreaked? if so, what files do i need to get. i have a jailbroken ipod touch 2g, so i know what im doing for the most part.
do you have iphone 3gs or 3g
Not at the moment,
even if the new 3GS had 3.0 or 3.0.1 and you used redsn0w you would have to point iTunes at one of those, the problem is apple have stopped signing those fw's so it will force you to take 3.1
Yannos
I didn't have a problem jailbreaking and unlocking an iPhone bought on the 3rd of Sept. I just unlocked it yesterday. It had 3.0.1.
The 3rd would have been fine, when did you jailbreak the phone?
3.1 did not come out until, Wed 9th or Thur 10th. It was after this when Apple stopped signing 3.0 and 3.0.1 because people were restoring to these fw's instead of 3.1.
It doesn't matter when you unlocked the phone as you prob did it in Cydia with a repo of repo666.ultrasn0w.com.
There was no restore when unlocking just when jailbreaking.
Yannos.
Why not try a restore in itunes pointing it to 3.0.1?
However DO NOT be mad with me when you end up on 3.1 coz Apple wont digitally sign 3.0.1.
I unlocked/jailbroke the phone yesterday, Sept. 13th. Worked fine for me.
I restored using redsn0w, using the 3.0 FW. That's all I did. Then I went about using cydia to unlock. I didn't use iTunes at any point in the process. I was running OS 3.0.1.
Yes I am sorry, mis read it myself.
To jailbreak for the first time it's fine as the phone is already at the correct fw.
However to restore the phone due to a problem then jailbreak again will not work as iTunes will not restore to anything another than 3.1
sorry
yannos
FML
there was no reason to buy a 3Gshit. voice dialing? come on…
a compass? seriously? MEN can figure out which direction is north faster than the iphone can load the compass app.
and video recording? unless you have children or are gay/emo and want to youtube yourself crying about people making fun of britney spears or other shit no one cares about, you dont really need video recording.