Report it back to Samsung and ask for a date when you can expect a fix. If that's unacceptable, start returning the defective products.
i have 4 Smssun TV , 3 (DH55D ) and 1(DM75E) when i connect the wirelss keyboard its connect with tv but when i am trying to write inside any browser like if i want to search something on google it's not typing or when i try to login on gmail or any account it again not working.

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