This site is not affiliated with Amazon Fire TV; this is an independent explanation.
A firestick not working is nearly always a case of power, the HDMI link, the Wi-Fi or full storage. The Amazon Fire TV Stick is a tiny computer, so it also hangs now and then and needs a restart.
This page covers a stick that shows nothing, sticks on the logo, freezes, buffers or crashes apps. If only the handset is at fault, read Fire TV remote not working. For the connection side, WiFi not working helps, and for the TV itself see TV not working.
Common causes
1Weak power from the TV USB port
How to tellStick restarts by itself, freezes, or shows a low power message
What fixes itPlug the power cable into the supplied wall adapter, not the TV port
2Wrong TV input or loose HDMI
How to tellTV says no signal while the stick has a power light
What fixes itSelect the right HDMI source and reseat the stick, or use the extender
3Stick is overheating or hung
How to tellFeels hot, picture freezes after some time
What fixes itUnplug for several minutes and give it air space behind the TV
4Wi-Fi is weak or the router is stuck
How to tellApps buffer, the stick says it cannot connect
What fixes itRestart the router and move it closer or use a better band
5Storage is almost full
How to tellApps crash, menus lag, updates fail
What fixes itUninstall apps you do not use and clear app cache
6App or system software bug
How to tellIssue starts after an update or only in one app
What fixes itClear the app data, update, and install the latest system update
7Faulty stick or cable
How to tellStill no start with a good adapter, another TV and a new cable
What fixes itContact Amazon support for service under warranty
How to fix it, step by step
Use the wall adapter
Connect the micro or USB power cable that came in the box to its own wall adapter. TV USB ports often give too little power. Unplugging it for a minute also restarts the stick.
Pick the right input on the TV
Press Input or Source on the TV and choose the HDMI port where the stick sits. If you changed ports, the TV may still look at the old one.
Reseat the stick or use the extender
Pull the stick out of the HDMI port and push it back in. If it is crowded by the wall or a soundbar, fit the small HDMI extender from the box. It also helps Wi-Fi and remote range.
Restart from the menu if you can
If you reach the home screen, open Settings, then My Fire TV, and choose Restart. A planned restart is gentler than pulling the plug.
Check the Wi-Fi
Open Settings, then Network, and join your Wi-Fi again. If the stick sees the network but the apps buffer, restart the router and test the speed on a phone. If that fails too, see internet not working.
Free up some storage
In Settings, open Applications, then Manage Installed Applications. Remove apps you rarely open and clear cache or data for heavy apps. A stick with little free space acts slow and unstable.
Install pending updates
Go to Settings, My Fire TV, About, and check for system updates. Keep power on during the update. Also update the apps that crash.
Try another TV or HDMI port
If the stick works on another TV, the first TV port or its settings were the problem. If it fails everywhere, move on to a reset or to Amazon support.
Reset to factory settings
Use this last. In Settings, My Fire TV, choose Reset to Factory Defaults. If the screen is stuck, use the remote and hold Back + Right for about ten seconds. Your apps and sign in will be removed, so you will need to set the stick up again.
Firestick not working: black screen versus stuck logo
A black screen with a no signal message points to the TV input, the HDMI port or the power. A stick that sits on its logo for many minutes is usually short of power, overheated or hit by a bad update. In that case, use the wall adapter, wait ten minutes, and try the reset keys. A stick that reaches the home screen but shows a message about network is a Wi-Fi matter instead.
The TV shows the animated logo, then goes black, then shows the logo again. This loop is a classic sign of weak power. Switch the cable to the wall adapter and let the stick start on its own.
Apps freezing, buffering or not opening
If one app fails while the rest work, clear its data, update it and sign in again. If every app buffers, the cause is the network. Check whether other devices at home stream without trouble, and move the router out of cupboards. The stick can use the 5 GHz Wi-Fi band on many models, which is faster close to the router. Streaming also needs a working account, so make sure that the service you pay for is active. For a general app problem, the apps and websites guide has more.
Symptom guide
| Behaviour | Likely reason | Fix first |
|---|---|---|
| No signal on TV | Wrong input or no power | Check source, use wall adapter |
| Logo loops | Low power | Change the power source |
| Freezes after an hour | Heat | Let it cool, use the extender |
| Cannot connect to Wi-Fi | Router or wrong password | Restart router, rejoin |
| Apps crash | Low storage or old app | Free space, update |
| Keys do nothing | Remote issue | See the remote guide |
When the stick needs replacing
If the stick fails on a different TV with the original adapter and cable, and a factory reset does not help, the hardware may be faulty. Check the warranty period on your purchase and contact Amazon support. Repairing it yourself is not practical and opening the casing is not advised. A replacement stick costs less than most TV repairs, so replacement is usually the sensible route.
Only use the official adapter or one with the same rating. Unknown chargers can underpower or damage the stick. Do not install unofficial app packages, as they may be unsafe.
Frequently asked questions
Why is my amazon fire tv stick not working suddenly?
Sudden faults come from power, a changed TV input, a hung system or the Wi-Fi. Use the wall adapter, restart the stick and check the source on the TV.
Why does my Fire TV Stick keep restarting?
The most common reason is low power from a TV USB port. Switch to the wall adapter. Heat and a full storage can also cause it.
How do I reset a Fire TV Stick that will not start?
With a paired remote, hold Back and Right together for about ten seconds and follow the screen. This restores factory settings, so you must sign in again.
Why does my firestick say no signal?
The TV is on the wrong HDMI source, or the stick has no power. Check the source and the power light, and reseat the stick.
Why is the firestick buffering so much?
A weak Wi-Fi link or a slow connection is the usual cause. Restart the router, move it closer and clear unused apps from the stick.
Does the Fire TV Stick need a remote to work?
It needs one to navigate, but the phone app can replace the remote on the same Wi-Fi.