In general, there is a possibility to recover the USB connection by unplugging the USB cable and plugging it again.
Please check the device manager of your PC/Mac/Chromebook if ELMO is shown in the list.
In case of L-12iD, L-12W, MA-1 and MO-2, before connecting by USB, please connect with a display system by HDMI or VGA, go to the setting menu and set “”USB Camera”” enable.
In case of L-12F, before connecting by USB, please connect with a display system by HDMI or VGA and select the region.
In case of P100HD, P30HD, P10HD, PX30E, PX30, PX10E, PX10 and L-12F, if you are a Mac user, your Mac may not be able to detect your ELMO, because of technical compatibility issue that is reported in the market. Please contact us for further information.