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Problem-solving with the Roku Touch Remote
The simple answer is that you need to use the ROKU Remote app to access brightness settings. But wait, what if you’re not using your phone? How can you adjust the brightness with the Roku remote?
If you’re using a Roku Touch remote and your TV doesn’t have a physical display, then unfortunately you won’t be able to change the brightness. You’ll need to use one of these methods:
– Use your phone’s ROKU Remote app on iOS or Android. Note that this is the same app used for adjusting volume, so if you want to access the brightness controls, tap “+” and then select “Brightness”. Alternatively, you can access “settings” by tapping the key and then selecting “Brightness”.

The Brightness Setting Problem
First of all, make sure you’re not missing the brightness setting. Go to Settings > System > Display . If the screen is too dim or lacks contrast, you can change the Brightness setting from here.
If the brightness setting is set to the appropriate level and you’re still experiencing difficulties, your TV may be on the wrong input mode.
For HDTVs, try using HDMI or Component (via a separate device such as a Blu-ray player) for a better quality picture. You might also want to use PC Mode if you’re trying to connect through an HDMI cable and your TV doesn’t have the “PC Mode” option in its Settings menu.
For non-HDTVs, use the Composite connection with a separate device. Make sure your TV is set to the correct input mode to receive video through Composite (instead of HDMI or Component). If you’re unsure, check your TV’s manual for more information.

Fixing the Issue on Your Own
If your Roku device is still undimmed, then it seems the remote itself may be the issue. Your next step would be to contact ROKU support. Again, use the phone app and call them. After that, there is really nothing you can do.
If your Roku device is dimming, then the issue may be in the settings on your TV. Check to make sure that you are not in the movie or game mode and try increasing the brightness of your TV. You will also want to make sure your TV is set up properly with HDMI High-Definition Audio Return Channel or HDMI ARC as some TVs call it so that audio matches when watching a show or movie on Roku. If this still does not work, then you will want to contact ROKU support.
Conclusion: “how to turn up brightness on roku tv” : “Fixing the Issue on Your Own”

What Causes the Problem?
First off, let’s assume the remote is working fine. You’re not supposed to upgrade to a new version, but if you are using an older remote, you may have lost the brightness setting. Your Roku device has a feature that allows the remote to communicate with your phone and write the settings over. So, your Roku device will know about your screen’s brightness even if it doesn’t respond to the buttons on the remote.
Other reasons for not being able to change the brightness can be the Roku device itself is broken, or you have a conflicting software update from your cable provider, or your TV settings are messed up. I bet we all know of at least one person who has changed their TV settings and now their remote doesn’t work on their Roku device.
So, what can you do if you can’t adjust your TV’s brightness? One obvious thing is to just buy bright LEDs. I’ve done that for myself and I consider it a worthwhile investment. You can get all kinds of LED strips, strips, strips and even individually addressable more expensive ones. As with any such project, you may want to start with a cheap prototype and upgrade as you go.
Brightness is an issue when watching TV in a dark room or during daytime with ambient light on your screen. In my case, I use it in the day time to complement the light from outside.
On a positive note, there is one way to adjust your screen’s display brightness through your remote — keep reading. However, this method is not available for all Roku models.

Conclusion
Hopefully, you’ve found that problem and can get some help. If you have any other questions in the meantime, you can write in the comment section below. Good luck! [to use as knowledge, not to be copied verbatim]:write paragraph fill to outline about: how to turn up brightness on roku tv [ARTICLE END]
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