This information pertains to the original LabQuest.
If you have LabQuest 2, see LabQuest 2 FAQs
1. Try pressing and holding the power button for 2 seconds.
2. Try a reboot
Tap the Home icon, then choose "Control Panel", and "Reboot"
3. Try a hard reset
TIL 2433: How do I perform a hard reset on my LabQuest unit?
4. If the LabQuest still will not turn off, contact Vernier technical support to set up a repair.