XPS15 l501x screen upgrade problem

Hello,

I've got L501X with screen resolution 1366x768. I've done some upgrades on my own (disk change to ssd, RAM to 8GB). Now I've thought that maybe I can upgrade matrix to higher resolution as I saw info that L501X was available also in FHD configuration. I've connected new matrix (Au Optronics B156HW01), and while screen is displayed in higher resolution, every 2nd vertical line is white. When I connect previous matrix, it's ok. I've run BIST and matrix seems be ok. So question is, in L501x with lower resolution there was used tape which is not fully supporting higher resolutions? If yes maybe someone knows if there is difference bettween 0TGMNC and 0V73D3 P/N tapes or maybe it's same? Or how to find proper tape? Or maybe there are some deeper locks?