After 9 beta versions, the iOS 5 is finally released today!
I won’t need to go through the new features of iOS 5 as you can find them on the Apple website. What’s more important is that iPhone 4 and 3GS users who rely on an unlock should NOT update to the latest iOS 5 until a proper tool is out – sn0wbreeze for Windows, pwnage-tool for Mac or redsn0w.
MuscleNerd just announced that the latest redsn0w (to be released very soon) will have a baseband preservation mode as shown in the screenshot below:

For 3GS users, if you have the dreaded iPad baseband 6.15.00, you won’t be able to update to iOS 5 as well. Most likely you will be getting an iTunes Error 3004 and you will be stuck on recovery mode if you tried. To fix it, try either one of the solutions below:
- Download TinyUmbrella for Windows or Mac from here, run it and click Exit Recovery
- If you have the SHSH for iOS 4.3.3, download sn0wbreeze 2.7 (Windows) for iOS 4.3.3 or Pwnage tool for Mac, build a custom firmware and do a shift+restore (Windows) or Option+Restore (Mac)
- If you don’t have any SHSH, download sn0wbreeze 2.1 (Windows) for iOS 4.1 or Pwnage tool for Mac, build a custom firmware and do a shift+restore (Windows) or Option+Restore (Mac). Apple is still signing iOS 4.1 for 3GS (at least for now!)
Note: If you need to restore to iOS 4.x, you must install iTunes 10.4 or below.
If you are new to iPhone unlocking, all of these will be a bit too overwhelming. Relax and feel free to ask any questions below.
Excuse me, is there any confirmed and WORKING solution for upgrading to ios5 using gevey sim. Please
as mentioned above, you need to wait
I am looking to buy an iPhone 4 and I was wondering how I make sure that the iPhone can be unlocked (i.e. which ios and basebands can be unlocked so far)? Thanks!
only baseband 1.59.00 can be ultrasn0w unlock, the rest can be unlocked with Gevey, baseband 4.11.08 that comes with iOS 5 cannot be unlocked
A factory unlocked iPhone 4 is the best option as it will always be unlocked.
Hey
I have an iphone 3gs and a bb of 6.15.00
I have ios 5 however, i cannot bypass the activation screen
anyyyyyyyyy help?
just wait
hey i hav iphone 4 (gevy sim)
version 4.1(8b117)
modem firmware 02.10.04
which all updates can b unlocked!!!
kindly reply asap!!
thnks!!!
you can update up to 4.3.5, if you have the SHSH blobs from 4.1 to 4.3.5
I just upgraded my iphone4 to iOS 5 and didn’t know that would make my gevey sim stop working. I don’t know how to downgrade to a previous iOS now. HELP!
your baseband can't be downgraded, even if you can downgrade, you're stuck for now, sorry!
Same problem as you? I tried everything to downgrade but I didn't know of SHSH blobs until I already upgraded!
Does this mean the iPhone is bricked or still can be used but solely on AT&T?
3GS? Read this http://www.iphonejailbreak.me/jailbreak-and-unloc…
4? Read this http://www.beijingiphonerepair.com/fix/downgrade-…
I have a 3gs, with a old bootroom (week 23 I think if i understand how the serial numbers). I upgrded to i0s5.0 (9a334), and i have modem firmware 5.16.05. Its on Carrier AT&T 11.0 – I would like to unlock it so I can put in on Tmobile. Do I need to hold tight like everyone else, or is there something I can do to get it it jailbroken and unlocked (there is LOTS of conflicting infomration). All information is appreciated
As at Oct 14, 2011:
1. You can jailbreak it and it should be untethered if you have an old bootrom
2. You can't unlock it because ultrasn0w and mobilesubstrate are broken on iOS5
3. You have baseband 5.16.05 that can't be unlocked (you need to update it to iPad's 6.15 using redsn0w but that will break your GPS)
My main goal is getting it unlocked at this point, and it doesnt even have to be with ios5 – I can go back to 4.3.3. My quesiton then is how to do I get my baseband from 5.16.05 to 6.15, given I am already on ios5? Use something like snowbreeze and downgrade from ios5 to 4.3.3 (I have tried this and didnt have much success becuase I figured I couldnt downgrade, but if someone will confirm thats the path I need to take, I will try again). Not sure how I found this site, but the information is greatly appreciated!
Try this http://www.iphonejailbreak.me/untethered-jailbrea…
Step 1. per the link above, i downloaded the components listed above and started the process. I have two computers – one that has iTunes 10.2.2.14 (the link says any version of iTunes before 10.4 will work), and one that has 10.5
Step 2. When I put my i0s5 3gs on the computer with 10.2.2.14, it says I needed iTunes 10.5, and would not even recongize the device to let me get to the restore screen.
Step 3. Now, for fun (keep in mind this is an extra phone with no data on it yet), I hooked it up the second computer with itunes 10.5 and tried to restored to 4.1 (holding shift and selecting the file I downloaded) and right after it says it trying to contact apples servers but before it actually does anything to the phone it gave me an error 20 and was in recovery mode.
Step 4. I tried a lot of other stuff that basically resulted in me restoring to ios5, where I started, keeping in mind the goal is to get to an any Ios with a unlocked baseband.
I am not sure what the next step is based on the above directions.
read here http://www.iphonejailbreak.me/jailbreak-and-unloc…
Hello, im new to Iphones and I pruchased an unlocked iphone 3gs two days and it was unlocked cydia, installious was installed onto it, my sim was working perfectly and so.. Last night I installed itunes and i installed the iOS5 update..not knowing it would mess up like it did.. so I am stuck at the "No service" screen and when i plug it in to the computer(windows) it says "there it no sim in activated please insert sim"… I don't understand what's going on can someone help me??
i guess you'll need to read this http://www.iphonejailbreak.me/jailbreak-and-unloc…
I followed the steps you have mentioned. However, at the end during the final restore, my phone is stuck on apple symbol with an empty bar below, nothing is happening for last 30 minutes. Please advise.
try on another USB port, re-download firmware, or try on another computer
I was using turbo sim I upgraded form 4.3.4 to iOS 5 I lost my unlock now I have iTunes 10.4 as I re installed it so can I click restore and get 4.3.4 or shud I get 4.3.5 coz when I connect my Phone iTunes says u need a upper version of iTunes what shud I do pls help
Use iTunes 10.4 to restore to iOS 4.3.5
hello i have a 3gs at&t and i need to know which baseband can be unlocked on ios 5 r which kind of iphone 3gs can be unlocked ! thanxs for help .
this has your answer http://www.beijingiphonerepair.com/hack/jailbreak…
FOR IOS BYPAS USE UR AT&T SIM N RGSTR IT.//, THEN U CAN ABLE TO USE ANY SIM CARD WID GEVEY SIM IN IOS 5 BCZ WAS ALSO IN SAME PROB
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Hi, i have updated my iPhone 4 to ios5. My turbo sim no longer works. How can get it to work? What are my options to use my iPhone 4 with a non ATT sim card?
currently only baseband and NOR chips replacement