Check the remote control for its infrared emission. Check it with fresh batteries. Check it by pressing all the keys. You can detect the presence of infra-red emission from the remote control, using a cell-phone camera. If you wish to get more details about how to check a remote control, please visit this site. One among the posts has details about it. In some cases, the remote control might need to clean.
http://electronicshelponline.blogspot.com/
http://remotesearch.blogspot.com/
http://electro-medical.blogspot.com/
Search the site by type in this key phrase "how to test a remote control "in the "search box at the top right of the display window of the Homepage" to get the related post quickly.
https://youtu.be/wUpnETSm6_k
https://www.youtube.com/watch?v=jsSCNCW3IbQ [open and clean]
https://www.youtube.com/watch?v=Qp-l1uh-5gE [open and clean]/
SOURCE: Harmony 880 Logitech tv remote - won't change channels on direct tv
you may need to reprogram your remote, or, if you have your profile setup on the harmony website, reload from there
SOURCE: Volume and chanel number stays displayed
Pressing i+ button (bottom left on the original remote) for 5+ seconds worked for me...
SOURCE: My Olevia TV will not change channels using the remote or buttons
First thing, check batteries in remote, next make sure there are no obstructions between your remote and your tv. i would then call olevia tech support and describe your problem. sounds like the remote sensor has failed. usually covered under warranty. check with olevia to see if they have a factory wide problem or issue with remotes. persistance pays off in this case so just keep on top of tech support. hope this helps, john.
SOURCE: my remote control for my polaroid tv wont change channels.
You may be able to program your cable box remote to control your TV in addition to your cable box. When they initially set up your cable box they probably left a pamphlet giving you instructions on how to program your remote. I'm not sure why you can't change the TV channels manually but this may give you a work-around.
SOURCE: Channels will not change- 42
it means that only one channel save from your tv. press automatic search to search more channel from cable signal. now you can change channel.
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