I already own a regular fire stick which works flawlessly so I decided to buy another one. This time the new gen 4k. With the new gen 4K the images are foggy and dark and when I tried to adjusted from the tv settings goes even worst. The blacks goes to green. I thought something is wrong with my tv so I switched to my other tvs but same issue. For a fair comparison I used a 4K smart tv with the same streaming capabilities like the 4K fire stick. The images on the smart tv are crystal clear and bright but when switched to fire stick the image goes foggy and dark. Reinitialized the stick, redo all the updates, reboot, check the internet speed (150 mbps download) but no luck. Also to be sure nothing is wrong with my tv's hdmi inputs or cables I used an android box (minix neo) and also my other fire stick and the images are perfect. Obviously something is wrong with this new gen. The previous gen is much better even with no 4K capabilities. The only plus with this new gen is the remote which is compatible with most tvs. I will return this one for sure. Just not worth the money.