Libra 2 Lines on a still-responsive screen after FW update

[Ansl]

Hi,

Reaching out in hopes that someone knows the situation is fixable and has a solution for me. I factory reset, updated, and re-patched my device last night in an effort to resolve an issue with my Kobo Plus subscription. At some point in the process, I noticed a line of stuck pixels at the bottom of my screen that have since remained, even though I did another factory reset and tried downgrading my firmware back to what it was before all this began. The lines are able to change color (the vertical one occasionally disappears, and the bottom one has alternated between several shades but stays uniform and is always visible against a dark background). The screen is still fully responsive on all sides of the lines, which is why I'm still hoping it's not broken. Does anyone have any tips for me, or is my device on its way out? Thanks!

Attached are a couple of photos of the situation.