Light strip 1s preset mode color issue

Hello,
Is it possible to downgrade the firmware because current one 2.1.7_0020 broke most of the presets in the app? Currently all presets where red, yellow or pink included is broken and colors are too dark.
The firmware out of the box was perfect.
Unfortunately after the update preset in general are broken and all color are too dark and just ugly on low brightness.
Reset of light strip didn’t help as well.
Also yellow in the preset is just orange…
My ID 6330050708.
Downgrade is last step before returning light strip.
It was great before update.

Hi, anyone?

Hi, can someone reply? Is it it possible to downgrade the firmware back to version 2.0. 6.0009.
Thanks

If you need to downgrade the firmware back to version 2.0.6_0009, you need to connect the lightstrip to mainland server and then share to account268240019, I will try to help you