You can find various versions of this firmware and EMMC dumps on community-driven repair sites:
Today, we are sharing the 100% tested for the CV638H-D50 mainboard used in Elekta and similar 4K UHD TV models. This is a multi-part RAR archive; ensure you download all parts (including Part 09 ) to extract the full .bin or .img file successfully. Technical Specifications Main Board Model: CV638H-D50 Brand: ELEKTA (and other Chinese UHD brands) Resolution: 3840 x 2160 (4K UHD) Memory Type: EMMC File Format: .RAR (Split into multiple parts) Download CV638H UHD ELEKTA EMMC Backup part09 rar
This is a , meaning it is typically flashed using a programmer (like the RT809H or UFPI) rather than a standard USB update. Download: Ensure you have all RAR parts in the same folder. You can find various versions of this firmware
[Download] CV638H-D50 UHD ELEKTA EMMC Backup Dump File (Tested) Download: Ensure you have all RAR parts in the same folder