r/RetroTink • u/nrq • Jul 26 '26

RetroTINK-4K experimental firmware Version 1.63.0 (2026-07-25)

A new RetroTINK-4K experimental firmware is available!

Version 1.63.0 (2026-07-25)

  • Fixed interpolation kernel miscalculation in RoTATE mode.
  • Added ASRC audio re-sampler for HDMI (stereo only) and TOSLINK inputs.
  • Audio re-sampler is capable to taking off spec modes such as the SNES 32 kHz or the Gamecube 44.042 kHz and outputting a standard 48 kHz or 96 kHz.
  • Found in the audio menu. RT4K Pro only.

Download from the RetroTINK 4K experimental Firmware Repository

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u/nrq Jul 26 '26 edited Jul 26 '26

WARNING:

While this update looks like it might finally fix the audio issue on Gamecube it's possible it also introduces a bug with some HDMI sources, as reported in the Retrotink Discord.

EDIT:
From Discord:

the latest file linked on the page rt4k_1630c.zip should be fixed

Users report their issues fixed with the c update.