Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

Question

Does apple still signs iOS 4.1 for iPhone 3GS.?

I have iPhone 3GS , iOS 4.1 , bb 6.15, new bootrom.

I have only shsh blobs for iOS 6.1.3. So I can only upgrade to That iOS .

My questions are;

1.How to restore to iOS 6.1.3 using that blob?

2.Then I know the procedure to jailbreak(tethered) . After that can I unlock using ultrasn0w? (need to do anychanges in bb For unlock ?)

3.If apple signs iOS 4.1 still, then can I revert back to iOS 4.1 from 6.1.3 (if I don't like 6.1.3) if yes means then the procedure Plzz ...

Thanks in advance ...

Answer 1

4

yes 4.1 is still being signed for the 3gs. you should downgrade your baseband to a real iPhone baseband using redsn0w for Windows or Mac.

to downgrade your baseband with redsn0w 0.9.15b3 you will also need your 6.0 ipsw file, even if you're on 6.1.2 or 6.1.3. you wouldn't need it if you're on ios 4.1.

load redsn0w as admin
if on 6.x go to " extras > select ipsw > select your 6.0, no other.
go back and hit jailbreak
when you get to the options only select " downgrade baseband " do not leave cydia selected. just use one option at a time.
follow the steps " slide to power off " once the device goes off hit next and follow the DFU steps before it boots. ( if you don't get this it will fail ) just try again.
once complete boot the device and make sure you have 05.13.

the 3gs only goes to 6.1.3 so SHSH are not needed. you only use ifaith to make a custom ipsw to save your 05.13 baseband from upgrading and losing your unlock.

Make sure you have not installed iTunes 11.1 if you have you'll need to uninstall and re-install iTunes 11.0.

Uninstall Apple Application Support, Apple Mobile Support, iCloud and iTunes 11.1. Then install iTunes 11.0.0 from the link to downgrade or re-restore with an iFaith 6.x ipsw.

http://www.iphonefirmware.com/download-old-versions-of-itunes

link

This answer is marked "community wiki".

answered 01 Oct '13, 02:57

Mark Hack ♦
23.4k●1●45●13

wikified 01 Oct '13, 03:00

1

Thanks for ur reply.. Please confirm me whether I understand correctly from u..

FOR UPGRADING FROM iOS 4.1 to 6.1.3:

First I have to downgrade my bb to 5.13
I have to download ifaith and save 4.1&6.13 blobs.then I have to create custom ipsw for iOS 6.1.3 using saved blobs(i.e build ipsw).for preserving baseband we are doing this .
then I have to open iTunes 11.0 and put my device into DFU mode it will detect my phone in recovery mode and will ask me to restore it. shift+click restore iphone and i have to select that custom IPSW which I have build using i faith.
after that jb tethered and unlock by ultrasn0w.

FOR DOWNGRADING FROM IOS 6.1.3 to 4.1

I have to download ifaith and save 4.1&6.13 blobs.then I have to create custom ipsw for iOS 4.1 using blobs that we saved(i.e build ipsw).for preserving baseband we are doing this .
then I have to open iTunes 11.0 and put my device into DFU mode it will detect my phone in recovery mode and will ask me to restore it. shift+click restore iphone and i have to select that custom IPSW which I have build using i faith.
after that jb untethered and unlock by ultrasn0w.

Thanks in advance .

(01 Oct '13, 07:34) mani3gs

1

You don't need blobs for the 4.1 custom, Apple is still signing 4.1. Also you use PWNED DFU, not regular. iFaith will walk you through this. Otherwise, yes, you've got it right.

(01 Oct '13, 10:08) spockers ♦

1

also don't need blobs for 6.1.3 for the 3gs. " you only use ifaith to make a custom ipsw to save your 05.13 baseband from upgrading and losing your unlock. "

(01 Oct '13, 13:11) Mark Hack ♦

1

Thanks for ur replies.. Since I am new to this , I don't want to start this things with half knowledge and get stuck in middle.. ..so thanks for ur kind answers..

I can't get what u r saying here " Also you use PWNED DFU, not regular. iFaith will walk you through this." ..... it means ? I think I am confused in creating custom firmware for iOS 6.1.3 and restoring in ifaith...

could u tell me the step by step Plzz..

How to create and how to restore?? Plz

(01 Oct '13, 14:42) mani3gs

1

Pwned DFU is just like normal DFU Mode. Pwned DFU Mode allows you to restore custom firmwares. all it does is patches iTunes to allow them. to enter Pwned DFU use iReb in ifaith and follow the steps before you load itunes and shift + restore your custom ipsw.

(01 Oct '13, 14:48) Mark Hack ♦

Thanks for ur answers :-) now I will try myself :)

(02 Oct '13, 02:03) mani3gs

Good luck

(02 Oct '13, 02:23) King Shoot

Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

The question has been closed for being "Solved" by Tilerone, 18 Jun, 12:06

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