Check the following:
- The JHub Tablet may be off. Press and hold the JHub Tablet power button to see if it will turn on.
- Ensure the switch connected to the J35 Load Isolation input is not activated, as this will turn power to the tablet charger off.
- The JHub Tablet may be flat because the J35 is in Storage Mode.
In Storage Mode, the J35 will not provide the power to charge the JHub Tablet.
Plug the tablet into its charger, connect the J35 to a power source and begin battery charging. When the battery is sufficiently charged, the J35 will provide the power to charge the JHub Tablet.