dead pixels :(

[Ambrog]

Hi everyone,i finally had time to test the display hub75e, but I ran into an issue.

There are some dead pixels on the right side of the panel, they stay off when is red, even after trying various test patterns and libraries. Rotating the display via software dont help lol

I have checked the capacitors, including the small ones near the chips, and everything looks fine no obvious signs of bad solder joints

Im a bit sad honestly. After spending days figuring out how everything works :(
Is there anything else I can try?

Thanks in advance!

[Ambrog]

I will try to give it a little hot breath to see if something happen or i give up with the red and use it not for gif. At least i can use less pixels as 64x45 but is meh :/

what chip control that line? just for bridge and fire the leds manually

[board707]

It's looks like the panel is partly broken.
Did you try to test these pixels with green or blue?

[Ambrog]

Hi @board707 and thanks for the reply! Yeah, green and blue work normally :(

im trying to use the 64x45 rgb as show gifs and above the remain 19 a date and clock just to use the panel...before use the heat gun for reflow xD

[Ambrog]

if i short the red pin its light on, but dont follow any data :/

[Ambrog]

unlucky, reflow not helped :(