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Hello

Sounds like hardware related issues' i suggest you take for  service. Please contact our Service Centre.

Tel: 011-3573777

Email: parts@sinoprima.co.za

Email: service@sinoprima.co.za

But before that try to restore your TV to Factory Default and see if that helps > Go to Settings, Backup & Reset, Select Factory, Clear all data.
by (Genius) (20.2m points)
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