Help/Support Downgrade support 10.2.1 to 10.2 prometeus

[Max-Q 51.6k iPhone 15 Pro 17.0.2 Donor]

Im on 10.2.1 and tring to downgrade to 10.2 for further jailbreak , emulated os sierra on win 10 and tried downgrade with prometeus but i have he error:tss server returned:status=94&message: this device isnt eligible for the requested build

sending tss req attempt 1 :error, sep firmware isnt signed, failed with errorcode=3

Now  i read that can be downgraded UNSIGNED ipsw but need shsh2! i got  it, some say that sep file i chosed is not the right one instead i checked many times , is the right one! all other files requested for downgrade are all from 10.2.1 ipsw and the right ones! my device is iphone 6 !  any help is welcome ty

Updated April 24, 2017 by Lorenzo26

[Sneezh 1.1k iPhone 14 Pro Max 16.4.1]

I recommend following this tutorial step by step, it worked perfectly for me:

http://www.idownloadblog.com/2017/02/22/prometheus-2-use-futurerestore/

 

NOTE:

Downgrading to firmwares no longer signed by apple will only work if you have shsh blobs!

[Cycas 4.2k iPad Air 13.5]

Just update and wait for jailbreak mate...

1% chance to restore 

[Max-Q 51.6k iPhone 15 Pro 17.0.2 Donor]

4 hours ago, Sneezh said:

I recommend following this tutorial step by step, it worked perfectly for me:

http://www.idownloadblog.com/2017/02/22/prometheus-2-use-futurerestore/

 

NOTE:

Downgrading to firmwares no longer signed by apple will only work if you have shsh blobs!

I have 6 shsh2 saved for my device ! ill try this complicated guide, but i want to know the command to insert moore shsh2 in the downgrade main command! Thanks

[Sneezh 1.1k iPhone 14 Pro Max 16.4.1]

1 hour ago, Lorenzo26 said:

I have 6 shsh2 saved for my device ! ill try this complicated guide, but i want to know the command to insert moore shsh2 in the downgrade main command! Thanks

You only need 1 shsh from/for 10.2...

[Max-Q 51.6k iPhone 15 Pro 17.0.2 Donor]

i  read on web moore shsh2 moore chances to find the nonce for device  to have acces to downgrade

[K1R1T0 388 iPhone 5s 10.3.3]

You can check whether you can downgrade your iOS or not from this site https://ipsw.me/

[Sneezh 1.1k iPhone 14 Pro Max 16.4.1]

6 hours ago, Lorenzo26 said:

i  read on web moore shsh2 moore chances to find the nonce for device  to have acces to downgrade

It doesn't matter, you are already on ios 10, and you only need one of those shsh blobs, follow the tutorial and you should be fine.

[Max-Q 51.6k iPhone 15 Pro 17.0.2 Donor]

3 hours ago, Sneezh said:

It doesn't matter, you are already on ios 10, and you only need one of those shsh blobs, follow the tutorial and you should be fine.

thank you i will try! still not have time , meanwhile i installed hombrew and other stuff!i just hope works, im using virtual machine mac osx and if iphone restarts, the machine does not recognize imediatly , i must do it manually! i hope that will not be a problem

Updated April 24, 2017 by Lorenzo26

[Max-Q 51.6k iPhone 15 Pro 17.0.2 Donor]

Tried every single step! at the end, gaved me exactly same error! what to do lol?? anyone help