Checking SHSH on Cydia

Run TU and make sure your iPhone is plugged in.
Then click save shsh.
It will retrieve and display all available blobs for your phone.

erichkooi said:

Hi Applejuiced,
Yes, I did that.

I can see mine iPhone 3Gs listed from iOS 3.1.3 to 4.2.1 in the TU.
After that I tested mine new iPhone 4 which never been jailbreak before, it also show iOS 4.0.1 and 4.2.1. Is TU connected to Cydia to retrieve these information or it just retrieve from the phone itself?

Click to expand...

No theyre all pulled from Cydia and apples servers.
Shsh are not located on the phone.
Whatever is displayed on TU is all you have available to restore to.

erichkooi said:

I didn't backup SHSH on mine iPhone 4, it also able to pull it?

Base on what u said, that mean I able to restore previous version from TU?

BTW, thanks for replied promptly.

Click to expand...

No, if you never did it before the only shsh you will get now is 4.2.1 and higher.
So you will not be able to downgrade it.

plug your phone into your computer and fire up tiny umbrella.
hit the "save SHSH" button and see what blobs it saves for you.
if all you see if 4.2.1, then you're stuck on that firmware.
if you see anything lower, then you are able to downgrade.
simple.

a much easier way is the following:

download TU
plug iPhone into your computer and fire up TU
once connected, click "Save SHSH" and TU will save ALL blobs cydia has saved in the past
click on "Enter Recovery"
click on "Start TSS Server"
load itunes
download previous firmware from http://www.felixbruns.de/iPod/firmware/
shift + restore

you can only downgrade to a firmware listed in the "saved SHSH" section of tiny umbrella.

i've never bothered with bootroms as i'm from australia and we can buy factory unlocked phones.
read up on bootroms yourself and downgrade if applicable.

erichkooi said:

Hi barneyevo,
That mean i should download the firmware base on the SHSH listed?

If I able to make download to 4.1 and with new bootrom, can I restore back the stock firmware in future incase I change mind?

Click to expand...

Yes and yes.

Correct.
You can always go back to factory spec firmware just by restoring.
Good luck bro.

This forum is AWESOME!!!! AJ you saved my life.
i followed your advice and used my husbands computer at home since my primary computer is my laptop. fired up TU and whaddya know i have 4.1


i have the new itunes on my laptop and i'm on 4.2 but i'm on my husbands computer with TU and he is still on 4.1 is there any special steps to do for ME to downgrade since he's still jailbroken and on 4.1?

Thanks Guys...

tammie614 said:

This forum is AWESOME!!!! AJ you saved my life.
i followed your advice and used my husbands computer at home since my primary computer is my laptop. fired up TU and whaddya know i have 4.1


i have the new itunes on my laptop and i'm on 4.2 but i'm on my husbands computer with TU and he is still on 4.1 is there any special steps to do for ME to downgrade since he's still jailbroken and on 4.1?

Thanks Guys...

Click to expand...

Good job tammie.
Glad it worked out.

Downgrade not working

I accidentally upgraded my iPhone 3GS to 4.2.1 without holding the option key and thus my baseband was upgraded to 05.15.04. I have SHSH 4.1 (8B117) according to Tiny Umbrella, but when I try to follow the aforementioned instructions nothing happens. iTunes displays the following error message "The iPhone could not be restored. An unknown error occurred (1015)" I click 'ok' and then 'Exit Recovery' on Tiny Umbrella, but to no avail. It's still locked and there is no jailbreak software (greenpois0n, redsn0w, limera1n) that will unlocked it. They all fail midway through.

Is there anything I can do?

You can't downgrade bb. Your only option is to use the iPad bb. Hope you don't need your GPS or need to take it into apple.
Ultrasnow is the only software that unlocks.

drewfisk said:

I accidentally upgraded my iPhone 3GS to 4.2.1 without holding the option key and thus my baseband was upgraded to 05.15.04. I have SHSH 4.1 (8B117) according to Tiny Umbrella, but when I try to follow the aforementioned instructions nothing happens. iTunes displays the following error message "The iPhone could not be restored. An unknown error occurred (1015)" I click 'ok' and then 'Exit Recovery' on Tiny Umbrella, but to no avail. It's still locked and there is no jailbreak software (greenpois0n, redsn0w, limera1n) that will unlocked it. They all fail midway through.

Is there anything I can do?

Click to expand...