Downgrade & Jailbreak iPhone 4.2.1?

professional20

Senior Member

Oct 6, 2008

835

1,194

• Mar 3, 2011

• #1

Hey fellow Bhatters!

Anyone here know of an easy way to downgrade and jailbreak an iPhone 4.2.1? I searched Google and tried a few ways only to have to wait 25 minutes to restore my phone back to factory settings...any help will be appreciated.

Thanks in advance

 

MiLiTARYiV

Senior Member

Jan 9, 2008

963

605

• Mar 3, 2011

• #2

Takes 5 min.

http://greenpois0n.com/

easy easy download and run

I just did my iphone 4 last week

 

professional20

Senior Member

Oct 6, 2008

835

1,194

• Mar 3, 2011
• Thread Starter Thread Starter

• #3

MiLiTARYiV said:

Takes 5 min.

http://greenpois0n.com/

easy easy download and run

I just did my iphone 4 last week

Click to expand...

Will try this as soon as my iphone is restored.
Will let you know how it goes.

 

VasilLevski

Newbie

Apr 16, 2010

20

9

• Mar 3, 2011

• #4

Hey, I am pretty sure you cant downgrade a firmware once it is upgraded unless you saved shsh files from the previous to a 3rd party server (I forgot the name). However according to the greenpois0n readme it does firmware 4.2.1. Goodluck.

 

professional20

Senior Member

Oct 6, 2008

835

1,194

• Mar 3, 2011
• Thread Starter Thread Starter

• #5

It couldn't be any easier than that.
The link works. Thanks and +rep given. =)

Problem solved, thread closed.