there is nowhere described that u need to export ur oeminfo. U need a oeminfo which is from the version u want end in... and a matching update.app... This means in short, if u want end in for example L31C432B130 u need:
1x oeminfo (L31C43...
"for KFFOWI/Ford, Fire 7in 2015 5th Gen Only
System version 5.1.3 & 22.214.171.124 can be downgraded to 5.1.2
System Version 5.1.X cannot be downgraded to 5.0.X"
Not entirely true. I just hard bricked my tab trying to downgrade f...