Zidoo released a recovery image for their model Zidoo Z2600.
Zidoo
Zidoo Z2600 stable firmware v1.0.52(_G)
Former beta firmware v1.0.52(_G) for model Zidoo Z2600 has been released as stable on the download page.
Zidoo Z2000 Pro stable firmware v1.0.52(_G)
Former beta firmware v1.0.52(_G) for model Zidoo Z2000 Pro has been released as stable on the download page.
Zidoo Z20 Pro stable firmware v1.0.52(_G)
Former beta firmware v1.0.52(_G) for model Zidoo Z20 Pro has been released as stable on the download page.
Zidoo Z9X Pro stable firmware v1.0.52(_G)
Former beta firmware v1.0.52(_G) for model Zidoo Z9X Pro has been released as stable on the download page.
ZDMC APK v20.2
Zidoo updated their Kodi fork to version 20.2.
Successfully tested on the 
Testbed
supported by
RTD1619BPD based players are not Roon Ready yet
Currently Eversolo DMP-A6 is Roon certified but not for media players yet, sorry our marketing team mis-estimates the time of certification. The team noticed that some users are talking about the issue on some forums.
Message from Zidoo
Zidoo Roon certified models: https://roonlabs.com/partners/zidoo
EverSolo Roon certified models: https://roon.app/de/partners/187/eversoloaudio