If your is stuck on the standby logo, experiencing a "boot loop," or showing a black screen despite the backlight being on, it is likely a firmware or EMMC data corruption issue.
Flashing EMMC firmware is a high-risk procedure. Incorrect files or power failure during the process can permanently damage your mainboard. Proceed only if you have the proper hardware and experience. Download CV638H UHD ELEKTA EMMC Backup part09 rar
Recovery from soft-brick, logo hang, or EMMC replacement. How to Use this Backup If your is stuck on the standby logo,
Often hosts Sanyo/Elekta CV638H firmware and EMMC sets. experiencing a "boot loop