i thought i read somewhere you could put different firmware on it to change it to scrypt instead
of sha 256 , maybe im wrong
anyone recommened any easy to install easy to download , plug in play firmware
for anything on an S9i
Nope, that's not possible. You will never be able to convert an SHA256d ASIC to a Scrypt ASIC. The chips are not the same.
About your question on the firmware, why not using Bitmain's official firmware ? Otherwise, as you mentioned it, BraiinOS is plug and play. If you have an issue with BraiinOS, you can go on their official topic and ask for some help.
Oh what am i going to do with this unit now !
It depends. If you have cheap electricity, why not joining a pool and mine BTC ?
If you have almost-free electricity, you can use it as a lottery ticket and solo mine BTC on ckpool / kano pool.
If you aren't profitable, if your electricity is expensive, you should maybe turn it off.