Error code can appear if the needle cartridge is not connected properly or due to a glitch on the program.
Please separate the needle cartridge and the battery from the device. Then connect the battery to the device and turn it on.
If you still get the error code without a needle cartridge connected, please fill out the device service request form.
If the error code does not appear without a needle cartridge connected, turn the device off and connect the same needle cartridge that was connected to the device when the error code first appeared. Turn the device on and if you still get the error code, please turn the device off and connect a brand new needle cartridge. If the issue persists with a brand new needle cartridge, please fill out the device service request form.