is there anyway to downgrade baseband 05.13.04 to 05.11.07

**eddietah** · 08-24-2010, 06:56 PM

My iPhone 3GS 3.1.3 crash recently so no choice I had to upgrade to 4.0.1 then I downgrade back to 3.1.3 but the baseband had been upgrade to 05.13.04 instead of the old baseband 05.11.07 that come with 3.1.3

Is there anyway that I can downgrade back the baseband to 05.11.07?

Appreciated and thanks for all your kindest helps

**Will13** · 08-24-2010, 07:03 PM

Well you don't need to, ultrasn0w will still unlock it

**eddietah** · 08-24-2010, 07:05 PM

Originally Posted by Will13

Well you don't need to, ultrasn0w will still unlock it

So sorry but I don't get what you mean

**neodude237** · 08-24-2010, 07:06 PM

What's the point of downgrading the baseband? All of them are unlockable.

**eddietah** · 08-24-2010, 07:08 PM

Originally Posted by neodude237

What's the point of downgrading the baseband? All of them are unlockable.

Yap my iPhone is already unlock but I would like to know is there anyway to downgrade

**neodude237** · 08-24-2010, 07:09 PM

No, there's no way to downgrade, and there's no REASON to downgrade, you can downgrade the firmware fine and use it with the newer baseband, why you have your heart set on doing that, I don't understand.

**eddietah** · 08-24-2010, 07:11 PM

Originally Posted by neodude237

No, there's no way to downgrade, and there's no REASON to downgrade, you can downgrade the firmware fine and use it with the newer baseband, why you have your heart set on doing that, I don't understand.

Cos my iPhone recently always show No Service or No Sim with this baseband

Previously was okay with the old baseband

**neodude237** · 08-24-2010, 07:13 PM

I don't think that's the fault of the baseband.... I'd trying another sim... or if all else fails restore and then re-unlock.

**eddietah** · 08-24-2010, 07:16 PM

Originally Posted by neodude237

I don't think that's the fault of the baseband.... I'd trying another sim... or if all else fails restore and then re-unlock.

OIC.. so what exactly do the baseband serve as?

Ormaybe it's because of my iProtect cos I have activated Sim Card Lock

**neodude237** · 08-24-2010, 07:17 PM

Originally Posted by eddietah

OIC.. so what exactly do the baseband serve as?

Ormaybe it's because of my iProtect cos I have activated Sim Card Lock

That would seem a little more likely. I'm probably talking out my butt now, but the baseband is what the phone uses to communicate to the cell phone towers more or less. Somebody else can give a better explanation of that, but I don't think having 5.13 over 5.11 is going to be causing those problems.

**eddietah** · 08-24-2010, 07:20 PM

Originally Posted by neodude237

That would seem a little more likely. I'm probably talking out my butt now, but the baseband is what the phone uses to communicate to the cell phone towers more or less. Somebody else can give a better explanation of that, but I don't think having 5.13 over 5.11 is going to be causing those problems.

So that means is okay to have 3.1.3 with 05.13.04

**neodude237** · 08-24-2010, 07:25 PM

To the best of my knowledge, yes, it should work just fine.

**eddietah** · 08-24-2010, 07:26 PM

Originally Posted by neodude237

To the best of my knowledge, yes, it should work just fine.

Okie thank you so much for your help

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