Write the backup to your EMMC chip and verify the data. Download Links

Often hosts Sanyo/Elekta CV638H firmware and EMMC sets.

Connect your EMMC programmer to the ISP pins on the CV638H board or desolder the EMMC chip. You can find the CV638H-D50 EMMC Pinouts on specialized repair forums like Remont-Main .

Recovery from soft-brick, logo hang, or EMMC replacement. How to Use this Backup