Touchscreen Digitizer Test
Also known as: Digitizer Grid Test, Touch Grid Test
An interactive diagnostic test where a user or instrument traces fingers across a full-screen grid to verify that capacitive sensors detect touch across 100% of the display area.
How TrueVolt Applies This Standard
Recommended during in-store device inspection before purchasing any refurbished phone on TrueVolt to ensure no invisible dead bands exist across the screen.
Technical Overview & Context
A digitizer test detects unresponsive areas that commonly occur when replacement screens are poorly bonded or damaged by prior drops. If any grid block fails to turn green during the drag test, touch functionality in that zone is impaired.
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