[REQUEST] Custom logo problem for Aptio BIOS

[Youhou]

Good day.
Please, help me to solve the problem.
Board: X555LB (Notebook)
CPU: I5-5200U
BIOS: Aptio
https://dlsvr04.asus.com/pub/ASUS/nb/X55...BAS605.zip

I have tried to use ChangeLogo_v5 and UEFITool, both can change successfully and flash successfully.

Question is logo display in half screen, I moddify origional splash logo file and add a box on logo, and I use pencil draw a line on my screen to ensure where the picture show. And it seems start from same position. I try different resolution finally ensure the largest resolution it can display is 1024x461, more than this resolution will display a black screen.

I guess BIOS support maxium 1024x768 splash screen, but for some reasons it starts to display logo from half. I don't know how to move forward the picture about 307 pixels to get a full screen logo show.

Maybe someone know how to fix it?

I have a ch341a so it's OK to try dangerous bios.

Thanks.