[Q] How to force update

Hey, I was on 5.1.1 (LDZ22D) with the WiFi mod and intersect's kernel. I got the update notice but I knew I couldn't update, so I flashed stock /system and /boot from stock images on intersect's thread a couple days ago, but now everytime I go to check for updates it says it's updated...

Any way to force it to update? or are there any update images I can flash?


Thanks!