As a follow up to my previous MacOS video, today I show you how to save your SHSH2 blobs on Windows using TSSCHECKER. In this video I will also show you how to fix the "parsing firmware.json failed" error on CMD. The error has been brought to my attention on the comments section of the video I made 2 days ago about saving your SHSH2 blobs on OS X.
Although @tihmstar posted a fix for the issue by changing the certificate, it appears not to work, so I decided to find my own fix and I came up with this, hopefully you will find this fix useful.
Note: It was tested on the latest version of tsschecker for Windows.
Saving your SHSH2 blobs is important because it will allow you to downgrade in the future, Luca Todesco, the man behind the iOS 10.1.1 Jailbreak recommended everybody to save their iOS 10.2 blobs and stay away from iOS 10.2.1.