Test System Hardware
The system administrator may ask you to access a diagnostics menu on the system to test its hardware.
You can test the system’s microphones, speaker, handset, third-party headset (if present), keypad
mappings, touchscreen, and LEDs. See your system administrator for instructions on how to perform these
tests.
1. Navigate to Settings > Status > Diagnostics > Test Hardware.
2. Select one of the following options and follow the prompts:
Audio Diagnostics
Display Diagnostics
Touch Screen Diagnostics
Clean the Touchscreen
The touchscreen on the systems requires minor maintenance, but you may periodically need to clean the
touchscreen. Use a clean, dry, microfiber cloth—the kind you would use to clean glass surfaces—to wipe
the touchscreen.
Before cleaning the screen, disable it so you don’t activate system functions while you wipe the
touchscreen.
1. Navigate to Settings > Basic > Screen Clean.
2. Wipe the screen with a clean and dry microfiber cloth.
3. Tap the screen to enable the touchscreen again.
Note: If the screen is still dirty after cleaning, dampen a soft, lint-free cloth with an isopropyl
alcohol and water solution of 50:50, and then wipe the screen with the cloth. Always use the
dampened cloth to apply the solution; never apply the solution directly, which could seep
inside the screen and cause staining.
Never use chemicals or cleaning solutions to clean
the touchscreen.
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