Users of the Amazon Firestick may find a common problem with their devices where it keeps restarting itself over and over again when you plug it in. Here are some steps that worked for me in this situation.
When the Fire TV Stick keeps restarting, it is often caused by a lack of power being supplied to the device.
Fix 1 – Use Proper Power Brick
Ensure the Fire TV Stick is getting enough power. If you have the USB wire connected to the TV or other device, it may not be getting enough power to fully start up.
Use a power brick that will supply an ample amount of power and plug it into a wall outlet. You’ll want one that operates at 100 to 240V AC input voltage, 50/60Hz 0.5Amps; Output: DC 5V 2A (2000mA) 10 Watt like this one.
Fix 2 – Replace Power Cable
I have seen many instances where the power cord being used with the Fire TV Stick is not the proper cable. I have also seen many that have been damaged by being scraped up against sharp tables or electronic equipment. If a different power source doesn’t work for you, try replacing the cable.
If these steps don’t get your Firestick to start up properly, you may have a problem with the Fire TV Stick hardware.