I have a Dynex flat screen tv. When I program the AT&T U-Verse standard remote to control it the power button works but the volume control doesn't. The volume control on the side of the TV works.

Remote Control Codes For Dynex TVs

1. how to program dynex TV with Universal remote control. ...
2. Turn on the TV.
3. Press and hold the TV and SEL buttons simultaneously for 3 seconds. ...
4. With the button lit, point the remote at the TV and enter the TV's 3, 4, or 5 digit code.
5. Verify by pressing the VOLUME + button.

https://www.directutor.com/content/remote-control-codes-dynex-tvs

see if you find your remote on this page:
Dynex 24 inch Class LCD 1080p 60Hz HDTV DVD Combo

Try pressing all the buttons on the remote simultaneously-this will reset the remote & then program the remote to the TV. You can also try and power cycle the TV by unplugging the TV from the wall for a minute, then plugging it back in & power it on. Restore any changed system settings to factory defaults.

Hi- My name is Shannon and I am with Suddenlink. The SL-TiVo remote can be programmed to control the TV and one other A/V device using these steps:

1) From TiVo Central, select Settings & Messages > Settings > Remote, CableCARD, & Devices > Remote Control.

2) Highlight Part 1: TV power, volume, and mute and press SELECT.

3) The DVR displays a list of television brands. Use the UP ARROW and DOWN ARROW buttons and the CHAN DOWN and CHAN UP buttons on the TiVo remote to highlight your TV brand and then press SELECT.

4) The TV Remote Codes screen appears. Follow the instructions on this screen to enter a code into your remote control. If the first code does not work, repeat the instructions to enter the second remote control code, and so forth, until you find a code that works. The remote is now programmed to operate the TV.

5) If also programming to control volume & mute on an A/V receiver for surround sound; Highlight Part 2: A/V volume and mute and press SELECT.

6) The DVR displays a list of audio/video receiver brands. Use the UP ARROW and DOWN ARROW buttons and the CHAN DOWN and CHAN UP buttons on the TiVo remote to highlight your receiver brand and then press SELECT.

7) The AV Remote Codes screen appears.

Follow the instructions on this screen to enter a code into your remote control. If the first code does not work, repeat the instructions to enter the second remote control code, and so forth, until you find a code that works. The remote is now programmed to operate the receiver.

The TiVo remote will now turn the TV on/off and switch inputs and adjust the volume and mute the audio on the receiver.

If you have any questions, feel free to email me at shannon-AT-suddenlink-DOT-com. Thanks!

This might not work, if the TV and U-verse cable are using different formats of communications.

On some Dynex TVs, there are control buttons on the side of the TV (Volume controls, Channel controls, Menu, Input and Power). Just press the Input button until you get to the correct source.
http://www.dynexproducts.com/products/televisions.html#support=open&active=false&pageNumber=1&subcategoryId=31-to-40&resultsPerPage=all
will let you find your model and get a copy of the manual to check where those buttons are on your TV.

I hope this helps.

Cindy Wells

Do what I did...
Turn on TV
Press TV on the remote(will blink once)
Press and hold setup until tv button blinks twice
Hit 991 tv key will blink twice
Aim remote at tv press power button once
Press the Chan + key over and over until tv shuts off.
Same instructions as the manual

Yesterday I called Dynex at 1-800-305-2204. The rep gave me 0463 which didn't work when I called VERIZON FIOS but the Dynex rep did inform me during the call that if it didnt that Dynex is comparible with Orian, Emerson, Memorex, Sansui, Sylvania and Zenith. So any of these tv codes should work. The code of Orian which is 0490 indeed worked!!!! And when you call Verizon make sure when they help you program your remote that they do the second step if they dont tell you which is add the code 799 which will let you just push STB then Power to cut on/off the tv. My bedroom tv, I always pretty much had to use the tv remote to cut on and off but when the Verizon rep gave me that step for the original tv I was having problems with told me this step, I had her walk me through the other tv remote and add that code and its great. She said that alot of technicians just been taught the other way. Hope this info help you.

well you have the right code, but you have to get the volume options so you can control it. Hold down at&t and the ok button, then let them go. put in code 955 then press enter(bottom right) now you should be able to select whatever device and control that volume source

I use my Directv remote to change the channel. What you have to do is go the your direct tv remote go to setup then go to remote then look for tv brand Citizen then follow the direction the menu tells you to do. It works fine. You can use Tv Brand Citizen, Concerto, Luxman They work with any u-verse remote 4 digit code 0056 5 digit code 10056