My Thinklabs One is not turning on or the battery is not charging.
To turn the Thinklabs One on, just push and hold any key.
Also make sure that the battery is charged. See the battery charging instructions for further information.
If you have attempted to charge the battery, try connecting the charger to a different power source to determine whether the power source is the issue.
If you're confident the charger is connected to a functioning power source, it is possible that either the charger, the charger cable, or the stethoscope are faulty. Contact Us for further assistance, but it is likely you will need to send the stethoscope to us for repair.