Baseband Downgrade

[LePigeonBleu]

Hey!

I'm not sure there is a way that has been figured out yet on how to downgrade baseband from 3.0 to the current stable firmware, but I'm curious as to know.

I know it was available before for prior firmwares, but not this.

Anyone know?

bleu

 

[Aaleck]

Nope, I haven't heard anything yet.

It doesn't seem it makes a difference. I haven't encountered any problems with the updated version...

Are you sure you downgraded back to 2.2.1 properly?

 

[LePigeonBleu]

Yep. I'm back at the 2.2.1 fw.

I've just noticed with 3.0, some apps don't work/properly.

bleu

 

[Airforcekid]

I cant imagine one being found until after the release in the summer!

 

[TheSpaz]

Is it possible to downgrade from 3.0 to 2.2.1 on an iPhone 3G on a Mac? I heard that you *need* the windows version of QuickPwn to get it out of recovery mode. Is this true?

 

[diemos]

It's possible, but i'm not sure how.

 

[LePigeonBleu]

Does anyone have a custom firmware that would downgrade the baseband?

bleu

 

[Cask]

I think that no one has found a way to downgrade the baseband is the iPhone 3G. That is why the Dev-Team stated that if you updated to 2.2.1 directly from iTunes, then you would lose the ability to use yellowsn0w. If there was a way to downgrade the 3G's firmware, they would've done it already.

 

[renewed]

Is it possible to downgrade from 3.0 to 2.2.1 on an iPhone 3G on a Mac? I heard that you *need* the windows version of QuickPwn to get it out of recovery mode. Is this true?

Yeah. Come on Spaz I know you know this.

Just do a search.

What it comes down to, in summary, is 10.5.6 blocked the iPhone going into DFU, so you have to put the 10.5.5 IOUS.

DFU the sucker and do pwnage/quick pwn.

Finish. Then reinstall the 10.5.6 IOUS.

You need a free ADC account to get the proper files.

 

[TheSpaz]

Yeah. Come on Spaz I know you know this.

Just do a search.

What it comes down to, in summary, is 10.5.6 blocked the iPhone going into DFU, so you have to put the 10.5.5 IOUS.

DFU the sucker and do pwnage/quick pwn.

Finish. Then reinstall the 10.5.6 IOUS.

You need a free ADC account to get the proper files.

Dude. I already did my searching. You didn't read what I said.

I know how to DFU... I've already installed the 10.5.5 USB drivers... I know how to downgrade. Here's the catch. From what *I read*, people have had to use the PC version of QuickPWN to get their iPhone OUT of recovery mode after iTunes errors out. From what I was reading, they said that the Mac version of QuickPWN wouldn't kick it out of recovery and they needed to boot into Windows to get it out. I know what I'm doing, but I don't know if I really want to take the risk... just in case I want to downgrade (knowing me, I would). You're cool and all, but don't just assume that I didn't search. I know more than most about iPhones. I need to get out more

 

[renewed]

Dude. I already did my searching. You didn't read what I said.

Um.. you asked if it was possible to downgrade. I said yes.

I know how to DFU... I've already installed the 10.5.5 USB drivers... I know how to downgrade.

Okay good. Then it should be easy sailing from there.

Here's the catch. From what *I read*, people have had to use the PC version of QuickPWN to get their iPhone OUT of recovery mode after iTunes errors out. From what I was reading, they said that the Mac version of QuickPWN wouldn't kick it out of recovery and they needed to boot into Windows to get it out. I know what I'm doing, but I don't know if I really want to take the risk... just in case I want to downgrade (knowing me, I would).

Well I don't what they are doing or why they are doing it. Downgrading is easy. I have done it a few times for people and even had to do it to my own iPhone once. I accidentally deleted the UDID from my own developer list (don't ask lol) and so when I updated to 3.0b, it made my iPhone unusable. I had to then downgrade back to 2.2.1 to get my UDID (Xcode wouldn't pick it up). Therefore I downgraded to 2.2.1, got the UDID, entered it and then updated back to 3.0

You're cool and all, but don't just assume that I didn't search. I know more than most about iPhones. I need to get out more

Thanks. I am part of the pro-TheSpaz club lol.. okay I will give you a rundown of what I did to downgrade, the baseband stays the same however.

If you are wanting to go from 3.0b or 3.0b2 to 2.2.1 original or custom then the following should help (this is like the 3rd time I have posted this):

1. Run pwnage. It will ask which phone/ipod. Select it.

2. It will then ask what firmware to customize. You may need to download 2.2.1 and have it on your desktop. Select 2.2.1.

3. pwnage now creates a custom firmware.

4. follow the onscreen instructions. enter the iPhone in DFU mode etc...
this will be easy if you have 10.5.5 IOUS installed for mac.

5. Restore back to the custom 2.2.1.

6. You are now 2.2.1 custom. If you want normal 2.2.1 then just restore again in iTunes from a normal 2.2.1 back up or set up as a new iPhone.

--

 

[TheSpaz]

Um.. you asked if it was possible to downgrade. I said yes.



Okay good. Then it should be easy sailing from there.



Well I don't what they are doing or why they are doing it. Downgrading is easy. I have done it a few times for people and even had to do it to my own iPhone once. I accidentally deleted the UDID from my own developer list (don't ask lol) and so when I updated to 3.0b, it made my iPhone unusable. I had to then downgrade back to 2.2.1 to get my UDID (Xcode wouldn't pick it up). Therefore I downgraded to 2.2.1, got the UDID, entered it and then updated back to 3.0



Thanks. I am part of the pro-TheSpaz club lol.. okay I will give you a rundown of what I did to downgrade, the baseband stays the same however.

If you are wanting to go from 3.0b or 3.0b2 to 2.2.1 original or custom then the following should help (this is like the 3rd time I have posted this):

1. Run pwnage. It will ask which phone/ipod. Select it.

2. It will then ask what firmware to customize. You may need to download 2.2.1 and have it on your desktop. Select 2.2.1.

3. pwnage now creates a custom firmware.

4. follow the onscreen instructions. enter the iPhone in DFU mode etc...
this will be easy if you have 10.5.5 IOUS installed for mac.

5. Restore back to the custom 2.2.1.

6. You are now 2.2.1 custom. If you want normal 2.2.1 then just restore again in iTunes from a normal 2.2.1 back up or set up as a new iPhone.

--

Awesome! And you're positive there are no issues using the newer baseband on 2.2.1?