Ok, I've read this thread Lantiq VRX200 modem firmware with VDSL2 vectoring support - #17 by Notupus and i better understand i should upgrade to 22.03, but again on the device page i see there is a boot loop issue, so i'm a little confused.
Also i can't understand how to load this xDSL firmware i never did nothing via SSH and usually i never do this.