I purchased a Roku Ultra from the Roku store thinking I would get a reliable device but ended up with a defective Roku Ultra 4640 that does not display 1080 and above video reliably. Even for 720p, I get snowy picture.
I have tried connecting the Roku Ultra in the following two configurations with different high grade cables. In both configurations if I set the video to Auto detect, I get a snowy picture with flickering for 1080 and above. The problem can be seen consistently on both the configurations.
Roku Ultra 4640
Serial # YP00EC507535
OS 9.00 build 4084
Configuration 1
Roku Ultra
SONY Bravia 46EX400 (1080p)
- HDMI 1.4, HDMI with ARC
HDMI high speed & HDMI High speed with Ethernet cable
- Ultra connected on Wired and Wireless
Symptoms - Ultra boots up and starts correctly but screen flickers on both autodetect or any configuration above 1080. If forced to 720p, the picture is snowy but barely viewable.
Configuration 2
Roku Ultra
SONY Bravia XBR55AF8 (4K HDR)
- HDMI 2.0
HDMI high speed & HDMI highspeed with Ethernet cable
Ultra connected on Wired and Wireless
Symptoms - Ultra boots up and starts correctly but screen flickers on both autodetect or any configuration
I am surprised that Roku sold me a defective unit, which was confirmed when I got a 4K TV
My problem is similar to the one listed in https://forums.roku.com/viewtopic.php?f=28&t=116238&p=594156&hilit=snowy+picture#p594156 but its more consistent on my unit.
"shivba" wrote:
Thanks - will return it.
I have Roku 3s that work just fine in both the configurations but was hoping the Ultra's 4K support will look much better. Hopefully the return experience is painless with Roku.
"shivba" wrote:
Thanks - will return it.
I have Roku 3s that work just fine in both the configurations but was hoping the Ultra's 4K support will look much better. Hopefully the return experience is painless with Roku.
"shivba" wrote:
Thanks - will return it.
I have Roku 3s that work just fine in both the configurations but was hoping the Ultra's 4K support will look much better. Hopefully the return experience is painless with Roku.
"Miami Son" wrote:"shivba" wrote:
Thanks - will return it.
I have Roku 3s that work just fine in both the configurations but was hoping the Ultra's 4K support will look much better. Hopefully the return experience is painless with Roku.
Understand that the 4K support only works if you have a TV that supports 4K and the content you are watching is in 4K. Having a Roku that supports 4K does nothing to improve the quality of 1080P content. The Roku will not upconvert it like some DVD players do, and it won't matter if your TV only does 1080P.
"DBDukes" wrote:"shivba" wrote:
Thanks - will return it.
I have Roku 3s that work just fine in both the configurations but was hoping the Ultra's 4K support will look much better. Hopefully the return experience is painless with Roku.
My return of a bad Ultra was painless. I provided the receipt showing it was within warranty period (1 year), and I got an RMA. I got my replacement within a week of sending the bad one back.
You might not be so lucky. You say your Roku is a 4640 you bought directly from Roku. If you’re in the U.S., that would be an interesting situation, as the 4640 was replaced by the 4660 in October 2017.