Trying to get Jarvis 16.1 back!!!!

Hi all

New to all this so I am not exactly tech savvy with kodi/ android.

Installed krypton 17.3 to my android sumvision x4 box (version 4.4.2) and it ran really slow- looks like I need android 5 or above?

The question is can I get Jarvis 16.1 back?

I’ve tried directly downloading from kodi website under older versions but only 17 is there. Also tried other sites but receiving an OBB error!

Need some help please?!?!?