Hardware Nintendo Switch Lite backlight not functioning

[RooftopMadness]

Hi, i attempted a case swap a few weeks ago for my nintendo switch lite.
However, while putting it back together, i decided to check if everything worked. The screen did not turn on, but i could move the joycons and hear it scrolling trough the menu. After holding the switch close to a bright lite, i could see a ghost of the menu. I assumed the backlight was broken so i bought a new display from aliexpress. I put it in and i had the exact same problem.

I measured voltages with both screens and measured a voltage of 4 volts on the middle pin and 0 on all the other ones.

I also checked contiuety/resistance between all the pins, nothing beeped (tried all combinations including different polarities). i find this very odd as this means the connectors aren't connected internaly, not even through an LED. I highly doubt this. while taking off the old screen i cracked it so i decided to open it up to see how it is connected on the inside and im pretty sure i should've read continuety between atleast one pin and the one i read 4V on

Did i just get unlucky and recieve a broken screen as my replacement or is there a deeper issue going on with my switch?

 

[RooftopMadness]

Okey, so after some looking up some info and discussing with my dad.

Its normal im not reading continuety because the LED have a minimum voltage before they pass a current (i dont know how i forgot about that).

apperently that voltage has to be around 13-14 volts(for a normal switch, couldnt find any info on the lite but im asuming its gonna be close). Seeing as the battery is 3.8 volts my dad thinks the boost converter is broken. More experimenting will follow, any tips would be great.