Display & Touch Diagnostics
Also known as: Screen Diagnostic, Panel Test, Touchscreen Verification
Systematic testing of a smartphone display panel to verify touch responsiveness, digitizer accuracy, multi-touch tracking, panel color uniformity, and the absence of dead pixels or screen burn-in.
How TrueVolt Applies This Standard
Display & Touch is the primary subsystem evaluated in the TrueVolt Pro Diagnostic protocol, verifying that refurbished screens respond smoothly without ghost touches or dead zones.
Technical Overview & Context
Screen testing ensures the digitizer registers touch across the entire glass surface. Diagnostic checks also evaluate white, black, red, green, and blue test screens to detect backlight bleeding, stuck pixels, OLED burn-in, or glass delamination.
Related Guides & Checklists
How to Check a Refurbished Phone: In-Store Inspection Checklist
Step-by-step checklist for inspecting a refurbished smartphone in-store. Learn how to verify cosmetic condition, screen response, battery, IMEI, and hardware functions.
Understanding Device Diagnostic Reports: What Gets Tested
Learn what the optional 32-point TrueVolt Pro Diagnostic report covers across display, sensors, buttons, audio, and connectivity. Understand how reports are generated.