Catalina update 10.15.4 without issues, make sure you update your kexts before hand and clover 5107
Catalina update 10.15.3 without issues, make sure you update your kexts before hand.
Catalina update 10.15.2 without issues, make sure you update your kexts before hand.
Catalina update 10.15.1 without issue although you may have to make sure clover boots from the right partition.
HP 840 G2/G3, working with OS X 10.15 Catalina, for this to work you will need the SSDT-ECUSBX.aml and place that EFI/CLOVER/ACPI/Patched.
Make sure you remove Remove all patches about renaming acpi of EC or H_EC, revert all ACPI renaming in ACPI DSDT.
My method to install OS X on the SSD from a working real Mac via SSD to USB converter. I then install Clover and add my kexts and set the config.plist
SD Card reader
Finger Print device
Video - screen looks better in OS X then it does in Windows 10
WiFi and BlueTooth working OOO using the below hack
Battery status with Rehabman's DSDT patch
Sounds - using VoodooHDA
* Microphone - cannot turn it off or mute
Keyboard backlight - controlled though BIOS anyways
touchpad - using VoodooPS2Controller
USB3 - this laptop has two on board only and I haven't test them using the docking station
Ethernet - using IntelMausiEthernet
Sleep - kind of, closing the lid doesn't go to sleep but goes to sleep over time.
Web Cam, works but I covered it up.