Apple chief executive Steve Jobs said yesterday the new iPhone 4 has received the highest customer satisfaction ever but acknowledged reception complaints, saying "we're not perfect," Dow Jones Newswires reported.

Mr Jobs, speaking at a press conference for invited journalists at Apple headquarters, said other smartphones also experienced reception problems.

He said Apple had sold more than three million iPhone 4s since the device was launched three weeks ago and that only 0.55 per cent of buyers had called Apple support about the reception issues.

Mr Jobs said only 1.7 per cent of US buyers had returned their iPhone 4 to US carrier AT&T, less than a third of the return rate for the previous model, the iPhone 3GS.

He also said the company will provide free cases to iPhone 4 buyers to remedy the problem and refund buyers who purchased the bumpers which fit around the phone already.

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