Weird DSI Screen Issue

[u/HgpSkyward]

So, I managed to buy a used DSi XL 25 Year Editon in really good condition. But, there is one issue a noticed and I am wondering if anyone could help me.

Sometimes, when I turn the system on, the backlight on both screens flickers with some lines for a few (15?) seconds and then goes back to normal.

It almost never happens when I turn it on for the first time. But almost always happens if I reboot the thing (or turn it off and imediatelly back on).

Also, the very edge of the screens feel a little bit less bright, not like the "CRT", shadowy, or stained ones i've seen posted around, just a very slightly darker.

Those issues don't bother me too much, but I am wondering if they will get worse over time, or if there is something I can do to fix it. Also, would you guys recommend getting a screen replacement part while it is possible to find them? It would be just to keep it as insurance in case the problem gets worse. (They are getting quite hard to come by where I live)