Zidoo has released differential packages via OTA for their 8K series players.
Zidoo Z9X 8K Firmware Download – Z9X-8K v1.1.38(_G) to v1.1.42(_G)
Zidoo Z30 Pro Firmware Download – Z30-PRO v1.1.38(_G) to v1.1.42(_G)
Zidoo Z3000 Pro Firmware Download – Z3000-PRO v1.1.38(_G) to v1.1.42(_G)
Zidoo UHD8000 Firmware Download – UHD8000 v1.1.38(_G) to v1.1.42(_G)