Yamaha CK61/CK88 Firmware Update – The Hidden [SETTING] + [▼] Trick
🎹 Yamaha CK61/CK88 Firmware Update 1.10 – Finally Explained Clearly! If your Yamaha CK88 or CK61 won’t recognize the USB stick, gets stuck on the "Connecting" screen, or just refuses to start the update, this video shows the real solution, step by step. I tried countless USB sticks, FAT32 formats