How to Fix new SHSH error in iPhone iOS Upgrade

[TuT]Easy How to Upgrade & Downgrade Unsigned iOS 13.5.1 To 13.5 with SHSH blobs! Future Restore - iPhone Wired

SHSH, an abbreviation of signed hash, refers to the signature (currently RSA) on boot images or APTickets that the device bootloader will verify before allowing execution of an image. SHSH often also refers to backup files with this signature ("SHSH

有著全裝置漏洞的 iOS 13.5 SHSH2 到今天還有效（我猜下週二關ㄅ） 如果有空又想備份但暫時又不想越獄的人服用這篇備份一下吧！

Before beginning, this is a reminder that this is not a method of downgrading without shsh2 blobs. If you missed the signing of the 13.5 and never saved blobs, then you're out of luck. This method also does not work on devices not vulnerable to the ch

大家好，我是 Gary，是個 iOS / 越獄 Tweak 開發者。 對於新奇的 3C 和技術很有興趣熱忱，這次趁 iOS 13.5 還開放的這幾天整理一下 SHSH2 該怎麼備份～ 本文詳細好讀版也會發表於個人網站 原文程式碼好讀圖多詳細版： https://garynil.tw/2020/06/10183/a12-shsh2-backup/