A new firmware (v1.1) was just released for the Koryuu Transcoder: A device that converts Composite and S-Video to YPbPr Component video. Unfortunately, a programmer is required to perform the update, but it’s cheap and a standard JTAG cable should work. More details on the firmware and a review of the Koryuu are available below the links:
Purchase a Koryuu: https://retrorgb.link/koryuu
Programmer: https://amzn.to/39nus1s
Firmware file & Instructions: http://junkerhq.net/xrgb/index.php?title=Koryuu#Firmware_Upgrade
More Info: https://videogameperfection.com/2021/03/15/koryuu-firmware-update/
Here’s the full list of changes:
- Settings can now be saved and are automatically restored on power-up (To save current settings, press the INPUT_CHANGE and OPT buttons simultaneously)
- Instances of the OSSC getting confused by Koryuu’s output should no longer happen, as long as the OSSC firmware version is up-to-date
- Fixed field reversal in NTSC interlaced mode
- Optional “no test pattern” version for people with automatic component video switches
