DOWNGRADE iOS 14.3 -> iOS 13.x with SHSH blobs

[Ueuezaza]

Hi guys,

can someone tell me if it is possible downgrading from iOS 14.3 to any iOS 13.x considering that I saved all the SHSH blobs? It seems like futurerestore should work for me, but not sure.

Thing is that I am an iPhone collector and I would like the iPhone to run its original iOS, but I would also like to buy the new Airpods Max. And they don’t seem to be working with iOS 13.5, which I am currently running (jailbroken).
best case scenario would be to keep iOS 13.5 and use AirPods Max. Maybe any Cydia Tweak?

 

[JemTheWire]

Nope. Not possible as Apple have stopped signing iOS 13.

 

[JemTheWire]

Click Me

 

[Ueuezaza]

Nope. Not possible as Apple have stopped signing iOS 13.

...That’s why I specified that I have SHSH blobs. I know that is not possible without

 

[mac23456]

If you have the blobs for an iPhone 6s please upload them.

 

[chrfr]

If you have the blobs for an iPhone 6s please upload them.

Blobs are not universal. You must have blobs for the actual phone you'd want to downgrade; there is no value in having blobs from another phone.

 

[itsmeaustend]

If you have the blobs for an iPhone 6s please upload them.

I'm almost positive they're unique for each device. You'd need your own.

 

[teeshot44]

Yep, unique to the ECID of each phone. Not transferable between phones.

 

[mac23456]

Does that mean SHSH blobs are unique like serial numbers are, or does it just have to the same model?

 

[chrfr]

I will try doing a tethered downgrade then. Thanks for your help.

Without blobs, there is no way you're going to be able to downgrade to an unsigned version of iOS, tethered or otherwise.

 

[teeshot44]

Does that mean SHSH blobs are unique like serial numbers are, or does it just have to the same model?

Exact same phone from which the blob was saved, with the same ECID.

 

[mac23456]

Thanks for your help.