Help! Want to Downgrade iPhone 3G iOS 4.1 to 3.1.2 - GSM-Forum

bobbypab · 03-10-2011, 09:15

Want to Downgrade my iPhone 3G iOS 4.1 to 3.1.2 but how? Please give me ideal tutorial.

Phone: iPhone 3G with iOS 4.1
BB: 05:14:02 ; MC 5.9
Status: Never JB or Unlock
PC OS: Win 7 x64

Now I want to downgrade it and want to use 3.1.2 custom Firmware also unlock it.

Underdog · 03-10-2011, 09:31

As you're asking the question and have never jailbroken the phone, I presume you haven't backed up your SHSH blobs and without that you cannot downgrade.

So the answer is unfortunately, you cannot downgrade.

wolfgang1502 · 03-10-2011, 09:33

3G without Shsh

DFU Modus and manual 3.1.3/3.1.2

Downgrade Modemfirmware NO

bobbypab · 03-10-2011, 12:04

Quote:

Originally Posted by wolfgang1502

3G without Shsh

DFU Modus and manual 3.1.3/3.1.2

Downgrade Modemfirmware NO

Quote:

Originally Posted by Underdog

As you're asking the question and have never jailbroken the phone, I presume you haven't backed up your SHSH blobs and without that you cannot downgrade.

So the answer is unfortunately, you cannot downgrade.

Thanks for reply. If I update Custom iOS 4.1.2 made with sn0wbreeze with BB update. Then i still not able to Downgrade 3.1.2 ??

Mr.3. · 03-10-2011, 12:09

3G you dont need SHSH just update with 3.1.2 and if its stuck at recovery mode click kick out recovrey from tiny umberella

Underdog · 03-10-2011, 12:57

Well, I have to admit, if that works it's a new one on me.

eivelice · 03-11-2011, 05:13

your phone is not 3g its 3gs. look at your model, MC

MC = 3gs

03-10-2011, 09:15	#1 (permalink)
bobbypab Junior Member Join Date: Jan 2008 Posts: 8 Member: 677970 Status: Offline Thanks Meter: 1	Help! Want to Downgrade iPhone 3G iOS 4.1 to 3.1.2 Want to Downgrade my iPhone 3G iOS 4.1 to 3.1.2 but how? Please give me ideal tutorial. Phone: iPhone 3G with iOS 4.1 BB: 05:14:02 ; MC 5.9 Status: Never JB or Unlock PC OS: Win 7 x64 Now I want to downgrade it and want to use 3.1.2 custom Firmware also unlock it.

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03-10-2011, 09:31	#2 (permalink)
Underdog Freak Poster Join Date: Dec 2004 Location: UK Posts: 368 Member: 99686 Status: Offline Thanks Meter: 100	As you're asking the question and have never jailbroken the phone, I presume you haven't backed up your SHSH blobs and without that you cannot downgrade. So the answer is unfortunately, you cannot downgrade.

03-10-2011, 09:33	#3 (permalink)
wolfgang1502 No Life Poster Join Date: Jul 2007 Posts: 2,546 Member: 541042 Status: Offline Thanks Meter: 519	3G without Shsh DFU Modus and manual 3.1.3/3.1.2 Downgrade Modemfirmware NO

03-10-2011, 12:09	#5 (permalink)
Mr.3. No Life Poster Join Date: Feb 2009 Location: CMB/Ceylon Posts: 8,096 Member: 962029 Status: Offline Sonork: OEM Lock : ON Thanks Meter: 4,127	3G you dont need SHSH just update with 3.1.2 and if its stuck at recovery mode click kick out recovrey from tiny umberella

03-10-2011, 12:57	#6 (permalink)
Underdog Freak Poster Join Date: Dec 2004 Location: UK Posts: 368 Member: 99686 Status: Offline Thanks Meter: 100	Well, I have to admit, if that works it's a new one on me.

03-11-2011, 05:13	#7 (permalink)
eivelice No Life Poster Join Date: Nov 2006 Location: philippines Age: 42 Posts: 1,013 Member: 388962 Status: Offline Sonork: 100.1637202 Thanks Meter: 264	your phone is not 3g its 3gs. look at your model, MC MC = 3gs