All K1 are on the same firmware:
CR4CU220812S11_ota_img_V2.3.5.34.img 2025-12-30
You released a Monochrome update a while ago:
CR4CU220812S11_ota_img_V1.3.5.22.img 2026-07-10
Will you port all the new fixes to the Multicolor firmware? The K1C has issues 