This might help some folks, but I had similar "brick"situation on the c400 model, MJSXJ 11CM. It was out of position with the orange light permanently on. No first reason why this happened. Pressing the reset button did not do anything, plugging in and out of the socket ,it started the same, unresponsive.
Then I plugged it into a different power source, there USB of laptop. I cause the device to wake up, allow me to reset. Finally I could update via app the firmware and the SD card, which had been marked as corrupted by the app. This sometimes worked in the past on phones too; changing power source. Give it a try.
Then I plugged it into a different power source, there USB of laptop. I cause the device to wake up, allow me to reset. Finally I could update via app the firmware and the SD card, which had been marked as corrupted by the app. This sometimes worked in the past on phones too; changing power source. Give it a try.