Unlocking an Iphone 4 IOS 5???

aleksiabug · Oct 16, 2011

I recently purchased an Iphone 4 and it was running on 4.3.3. and this weekend i took it to get unlocked. It turns out that the place where I took it ended up updating to ios 5 without me knowing and told me they couldnt fix it because "the Sim card wasnt fitting." When I took it to someone else they told me that they couldnt unlock it because its running on IOS 5. Can my phone be unlocked or can it "downgrade" the update?

Gregoris · Oct 18, 2011

even if it was on ios 4.3.3 you would not be able to unlock it since it was on stock ios 4.3.3.. there is no way to use software unlocks atm for you. You would need to look into gevey sim or another sim solution for now until we see a new ultrasn0w that might support newer basebands

Jmills87 · Oct 18, 2011

Once you have upgraded to the iOS5 baseband there is no way to downgrade it back to an unlockable baseband. At this time there is no way to unlock an iPhone which has been updated to stock iOS5 firmware, not by software or hardware.

Liam_m88 · Oct 19, 2011

Unless you try downgrading to 4.3.5 while apple are still signing it.

I upgraded mine to ios5 on sunday night. Then downgraded on monday luckily.

I dont know if apple are still signing 4.3.5 or not.

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I am here: http://maps.google.com/maps?ll=56.344221,-2.952542

Jmills87 · Oct 19, 2011

4.3.5 is no longer being signed, there is no way to downgrade baseband.

fidlisskbarned · Oct 20, 2011

I upgraded two days ago to iOS 5 and it only took me a couple hours to completely regret it. I managed to downgrade yesterday to 4.3.3. Using my iMac and redsnow/ pwnage I can't tell which one worked cuz it took 5 hours of trying the same thing over and over. Redmondpie has a great little walkthrough on downgrading. Really happy it worked. iOS 5 isn't that good compared to the freedom that JBing gives you.

Jmills87 · Oct 20, 2011

The only way to downgrade firmware is to create a custom firmware file and you must have the SHSH key saved for the firmware you are downgrading to. Also, downgrading firmware will not downgrade baseband.

Gregoris · Oct 20, 2011

But downgrading firmware to unlock wont work because you will still be on the newer baseband even if you downgrade

fidlisskbarned · Oct 20, 2011

Seems like unlockers are boned.(for now)

Jmills87 · Oct 21, 2011

Not really, I've already unlocked several devices on iOS5 for my friends. Just have to preserve baseband when you update and you'll be fine.

TSGTBARCLAY · Oct 23, 2011

Jmills87 said:
Not really, I've already unlocked several devices on iOS5 for my friends. Just have to preserve baseband when you update and you'll be fine.

If you do the upgrade and preserve the baseband does it matter when you turn off the phone?

Gregoris · Oct 23, 2011

TSGTBARCLAY said:
If you do the upgrade and preserve the baseband does it matter when you turn off the phone?

Yes because currently the only ios 5 jailbreak is tethered. so when you reboot you would need to re jailbreak the device every time, you are better waiting for an un tethered jailbreak.