Iphone 3GS 4.0
I have the above phone on the baseband05.13.04
I was wondering if I could downgrade and jailbreak Iphone or will I have to wait till there is a jailbreak for this
Any help much apreciated
P.S I have purchased this phone like this and it has never been jailbroken before
- 07-28-2010, 12:20 PM #2iPhone Intermediate
- 132 Posts
You need shsh blobs for past firmwares in order to downgrade. Since you haven't been jailbroken before you more than likely don't have the shsh blobs necessary to downgrade.
You don't need to be jailbroken to get them but most people are oblivious to them until they jailbreak. And you can only get them for a select period of time.
It's safe to say you can't downgrade and jailbreak.
P.s. The baseband only determines if the phone is unlockable. I'd rather know the bootrom than the baseband.
- 07-28-2010, 12:47 PM #3
Hey thanks for the responses so far
I want to downgrade so I can jailbreak and unlock this phone
How do I find my bootrom
I can find the old firmware online and download it but will the iphone restore to an older version I ask as I have done this with the ipod touch but I want to be able to unlock after jailbreak and seems you can only do this on 3.1.3 or earlier
- 07-29-2010, 01:26 AM #5
- 07-29-2010, 06:25 AM #6iPhone Intermediate
- 132 Posts
I'm not going to write a tutorial on finding your bootrom. Other people have written better ones than I could. Try google.
You can not downgrade unless you have your shsh blobs. They are specific to your phone. It won't matter if you can find the old firmware.
- 07-30-2010, 07:06 AM #8
- 07-31-2010, 11:25 AM #9iPhone Intermediate
- 103 Posts
Sorry for hijacking this thread but Im in the same situation as the OP and didn't want to start a different thread with the same question.
Ive been hearing a lot about Tinyumbrella to save ones shsh blobs. Would this work in downgrading the firmware of an iPhone e 3g that has never been jb before?
- 07-31-2010, 11:41 AM #10
- 07-31-2010, 01:19 PM #11