4000T can’t display a photo file loaded from my PC which exceeds 3300 by 2500 pixels (8.25 Mega Pixel). Most of my (and probably most peoples) photos exceed this.
Resize them using a PC. If you have Windows 10. Windows Paint (In Windows accessories) has a resize option. There is no point in attempting to display such a high resolution image on a 1920 x 1080 display. More advanced graphics editing software will have automated resizing which saves a lot of effort.