My Amazon Fire TV stuck after showing the Amazon logo was going into sleep mode and just would’nt turn on. I checked if the power adaptor was good. It was. I checked if the TVs HDMI port was good. It was. I reset the Fire TV stick by unplugging it from the power source and plugging it in again after 03 minutes. Again the Amazon logo showed for a brief while and then it was the same black screen. I tried pressing the select button of the remote to wake it up. I tried Alexa and gave commands to restart the stick. Nothing worked. I even tried resetting my surge protector and changing the positions of the Amazon adaptor. Nothing worked. At my wits end, I decided it had to simple. Yes it was. The extender dongle which was provided, which was bridging the gap between the TVs HDMI port and the HDMI port of the Amazon Fire Stick TV was the culprit. As soon as I disengaged the dongle and plugged the Fire TV stick directly into the TVs HDMI port it started working. The picture was a lot sharper. Obviously, since the extender dongle had gone bad it was not able to transmit the signals. That’s the solution. Hope it helps you.