Need CPS and/or firmware for DM-860

Just got a new DM-860 (marked baofeng and looks like a copy of the 1801) from AliExpress. I can’t find CPS software anywhere; or any firmware updates.
I found an 1801 CPS on a web site, but using it corrupted my displays and button functionality and I had to do a factory reset (Fn1+“1”).

Any takers?