Why trade-in checks matter
Even small visible flaws can affect buyback pricing when the device is graded. A quick panel test helps you decide whether the offer is fair.
It also gives you time to document the screen condition before handing the device over.
Best patterns before trade-in
Use black for retention, white for tint and dust, gray for banding, and primary colors for dead pixels or stuck subpixels.
Take note of anything obvious in the center of the screen because that tends to matter most for grading.
How to document screen condition
Use consistent lighting and take a few clear photos if a defect is visible. This can be helpful if a later grading result seems inconsistent.
A short written checklist of which colors reveal the defect also keeps your documentation more useful.
FAQ
Can a small display flaw reduce trade-in value?
Yes. Visible burn-in, dead pixels, and obvious tint can all influence grading and price.
Should I photograph defects before trade-in?
Yes. Clear photos and notes can help if you need to compare against later inspection results.
What is the most important screen to test first?
Black is usually the best first check for burn-in, followed by white and gray for tint and banding.
Run the test now
Use the OLED Test homepage to open fullscreen colors, inspect uniformity, and compare panel behavior in real time. The browser-based workflow is fast, free, and works well for quick repeat checks.