Exclamation [Q] Kernel commpile problem

Please help Faced with the complexity, there is a fully working kernel, everything's cool, but there is one thing, the project is going to calmly and normally, everything works except the backlight, which works only when there is some event (sms, Skype, clicking off) I is simply boils brain.

My device is UMI X1S MTK 6589. Sourches Vanzo