Hardware diagnosticsAbout hardware diagnosticsIf you suspect that the unit’s hardware is not operating correctly, you can use the [Hardware Diagnostic]app to check if there are problems with the hardware. If there is a hardware problem, contact your technicalsupport representative. This app cannot check for software problems.Diagnosable hardwareAutomatic TestWi-Fi, Bluetooth, Wireless WAN (WWAN) (certain models only), GPS, microSD card (external SD),USB storage, EthernetManual TestTouchscreen (Multi-touch, Single-touch), LCD, Sound, Battery Health (certain models only)Running hardware diagnosticsA result icon is displayed on the left of the diagnosed device.: Pass: FailDiagnosing with the automatic test1. Swipe up the home screen, and then in the app list, tap [Hardware Diagnostic].2. Turn on the checkbox by tapping the device name ([1. Wi-Fi], [2. Bluetooth], [3. WWAN] (certainmodels only), [4. GPS], [5. External SD], [6. USB storage], [7. Ethernet]) that you want to diagnose.• To diagnose a microSD card or USB storage device, insert the microSD card or USB storage deviceinto the unit. Back up any important data in the microSD card or USB storage device beforediagnosis.3. Tap [RUN] to start diagnosis.4. When a message indicating that diagnosis is finished is displayed, tap [FINISH].Diagnosing the touchscreen (multi-touch)1. Swipe up the home screen, and then in the app list, tap [Hardware Diagnostic] ® [8. Touchscreen(Multi-touch:5points)].2. Touch the screen with five fingers.3. When you remove your fingers from the screen and a message indicating that diagnosis is finished isdisplayed, tap [PASS], [FAIL], or [RETRY].Diagnosing the touchscreen (single-touch)1. Swipe up the home screen, and then in the app list, tap [Hardware Diagnostic] ® [9. Touchscreen(Single-touch)].2. Touch A with your finger and trace the screen in order to E.3. When a message indicating that diagnosis is finished is displayed, tap [PASS], [FAIL], or [RETRY].Operating Instructions - Reference Manual 39Hardware diagnostics