Iphone 5s Downgrade ?

[Wayne]

I am on a iphone 5s gsm on ios 12.4.5 can i downgrade to ios 12.4 i have the shsh2 blobs if i can how do i do this?

Also apple no longer has the ios 12.4 ipsw on their servers and everywhere i look they all link to apple so i can't get it from anywhere.

[pscullum]

In theory you can downgrade by setting the nonce and assuming the Baseband and sep is compatible....if it’s not it shouldn’t matter since you can jailbreak with checkra1n if it failes. The ipsw issue is an apple one. I’m angry I can get the ipsw for other firmwares on my 6s.