@sergeyvl12 Thank you for your work.
Light also works on the Kobo Forma.
The Kobo Forma still has problems with the sleep mode and the sleep cover. Kobo Forma is repeatedly put to sleep and immediately woken up, if you just close the cover. If you press the power button, it is the same, unless you press it very quickly.
When the lighting starts at 1% again, I think it's better.