Here Are Errors While Downgrading iOS 10 with Prometheus

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Grace Liu
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Here Are Errors While Downgrading iOS 10 with Prometheus

Postby Grace Liu » 06 Jan 2017 15:48

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Last week, a hacker master released a tool - Prometheus to downgrade on 64-bits iDevice. Apple has officially stop the signing of iOS 10.1 and iOS 10.1.1, but this tool could help users to downgrade (need to ave blobs).
However, after this tool released, many users meet some errors during the process. 3u Team has summarized the errors and give you some solutions.

b0115ae6372a5fb3a13ee24bf29f9a6e.jpg
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Server error

Most users said that the processor error existed while using Prometheus. Some people thought that’s because Apple’s TTS sever logged off. Although we have no idea what caused this error, server or the code of this tool, tihmstar has already fixed this error in the latest version.

Segmentation error

The second most common error is segmentation error, that’s because macOS is lack of the support of OpenSSL. But this error has been fixed in the new version of Prometheus.

Touch ID on iOS 10.1.1

It would not downgrade SEP + baseband while restoring futurerestore, and it will replace the present version. That means if you restore to iOS 10.1.1, you are using iOS 10.2 SEP + baseband. It is thought that the delivery time of these two version is near, so there may not be any error. Users found that, although futurerestore could help to downgrade to 10.1.1, Touch ID is disable.

It annoys users so much that Touch ID is disable. Some features connected to Touch ID are disable, too. (Apple Pay needs Touch ID)

Luca Todesco said there may be a solution to this error, but after that, he has not released any comment about that. Tihmstar claimed that he would not offer any solution of this error.

In conclusion, after Prometheus released, there are many errors, but users still find this tool useful after get the solutions to fix these errors. But there is still no solution to solve Touch ID issue at present, some users are not willing to downgrade with the sacrifice of Touch ID.

TSSChecker

TSSCheck, the other tool of Tihmstar, has two serious errors.

Not compatible with iPhone 7 / Plus

iPhone 7 and iPhone 7 Plus use the mode which is different from 64-bits while creating nonce builder. This issue does not have any effect on other iDevices, but this means that all blobs saved from these two iDevices are invalid.

kofta
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Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby kofta » 16 Nov 2017 09:26

From where can i get Prometheus tool ? I want to downgrade my iphone 6 from ios 11 to 9.3.5

Grace Liu
Posts: 398
Joined: 20 Oct 2016 09:33
like: 56

Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby Grace Liu » 16 Nov 2017 10:36

kofta wrote:From where can i get Prometheus tool ? I want to downgrade my iphone 6 from ios 11 to 9.3.5

But did you save SHSH2 of iOS 9.3.5 for your device?

kofta
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Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby kofta » 17 Nov 2017 14:03

Grace Liu wrote:
kofta wrote:From where can i get Prometheus tool ? I want to downgrade my iphone 6 from ios 11 to 9.3.5

But did you save SHSH2 of iOS 9.3.5 for your device?

no ... from where can i get the old SHSH2 or is it only one SHSH2 ?

Grace Liu
Posts: 398
Joined: 20 Oct 2016 09:33
like: 56

Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby Grace Liu » 17 Nov 2017 18:29

kofta wrote:
Grace Liu wrote:
kofta wrote:From where can i get Prometheus tool ? I want to downgrade my iphone 6 from ios 11 to 9.3.5

But did you save SHSH2 of iOS 9.3.5 for your device?

no ... from where can i get the old SHSH2 or is it only one SHSH2 ?

If you did not save shsh 2 of iOS 9.3.5 when you are on iOS 9.3.5, you can not downgrade.

kofta
Posts: 5
Joined: 16 Nov 2017 08:58
like: 0

Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby kofta » 18 Nov 2017 12:53

Grace Liu wrote:
kofta wrote:
Grace Liu wrote:But did you save SHSH2 of iOS 9.3.5 for your device?

no ... from where can i get the old SHSH2 or is it only one SHSH2 ?

If you did not save shsh 2 of iOS 9.3.5 when you are on iOS 9.3.5, you can not downgrade.

so every firmware has one SHSH2 with phone or what is SHSH2 doing ??

Grace Liu
Posts: 398
Joined: 20 Oct 2016 09:33
like: 56

Re: Here Are Errors While Downgrading iOS 10 with Prometheus

Postby Grace Liu » 20 Nov 2017 09:45

SHSH2 could help you downgrade to some iOS versions.
If you want to save shsh2 of iOS 9.3.5, you need to save it while the device is running on iOS 9.3.5.


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