How should i fix this problem
Try a hard reset first. Unplug the TV from AC mains wall socket, and re-plug it back after 30 minutes or so. This procedure must make it a hard reset. If it do not help you, be sure that its main system control memory IC is faulty. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
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