Click a colour to enter fullscreen. Click or press any key to cycle. ESC to exit.
Use headphones or earphones for accurate left/right channel testing.
Press every key on the physical keyboard. Keys turn green when registered. Untested keys after full press = hardware fault.
Opens system Bluetooth scanner to verify the hardware adapter is present and working. Requires Chrome on HTTPS.
1. Note the battery percentage above (charger unplugged).
2. Plug in the charger — the Charging field should switch to Yes.
3. Unplug — should return to No.
4. If the status does not change, inspect the charging port or try a different charger.
Draw on the canvas below. Each finger gets its own colour. Trackpad users: click and drag to test pointer tracking.