The Ultimate Mini Split Smart App Confusion...

Howdy folks...

Boy, do I have one for you...

My landlord installed a mini split about a year ago, and it's been awesome. My 1st ever proper AC unit! My landlord showed me the remote and the app for my phone. At the time, I assumed the whole setup was this GREE+ company because that was the APP that was installed, and everything worked. He unfortunately didn't give me a manual tho...

Well, the app updated, and suddenly nothing works with the app. Come to find out, I have like 3 or 4 different brands and model numbers, which has been a very interesting day sorting them out.

So the AC on the wall is a Wabban BB12HQ3D6DI, which seems to be this Wabban YUKON SERIES, but my unit also doesn't have the branding.

The GREE+ APP tho listed my AC as an AC473a and used to be able to be found via the auto search in the app, but not anymore.

When I try the manual add for the GREE+ app, only a c67c473a shows up, but once I try to connect, it fails at 49%.

The remote tho is YAG1FB2F, which I just assume is a generic remote for more than one model.

Finally, I troubleshooted all day with Wi-Fi resetting and so on, with zero luck. So my question is, if a mini split is "Wifi Ready" and the company doesn't offer an app (Wabban doesn't), what do I do for an app?

I currently have it set up via my Switchbot HUB via IR, but under a GREE+ model called KFR-50LW(50551)FNBc-A2, which also adds more confusion, and half the buttons work.

Any help would be awesome.