How to downgrade Lightstrip firmware (i'm facing problems after recent fw upgrade)

i just bought a new yeelight led strip plus.
it was working fine till i did a firmware upgrade suggested by Yeelight app.
Now everytime i turn it off it goes to RED and the manual switch changes the led colour instead of turning it off.

IS there a way to rollback to previous firmware ?
TY

Dame problem pleasy witcher list Id 6280183913

Mine is no longer working via Alexa app/routines. Only via the yeelight app. Has there been a change?