Firmware problem 1.4.2_0075

Hello all,

I have seen that problems exist with the new firmware and V1 Yeelight LED Bulbs. I have a total of 12 bulbs and after firmware update the turning lamps on and off feels very sudden - without fade in or out effect and the overall light produced at preset levels seems much brighter than usual.

Can you perhaps give instructions on how to downgrade the firmware, or if there is a firmware fix that fixes this issue?

Thanks a lot,