Blackberry manufacturer Research in Motion (RIM¹) has reported a quarterly loss, due in part to falling revenues on the back of weak smartphone shipments.

因为黑莓生产商RIM公司2012年第一季度宣告亏损，其中部分原因是由于智能手机货运能力不足。

The Canadian company made a net loss for the three months to 3 March of $125m (£78m), compared with a profit of $934m a year earlier.

Revenues fell to $4.2bn from $5.2bn.

The firm also suggested it would refocus on the corporate² market rather than on individual consumers.

It also announced the resignation of former co-chief executive Jim Balsillie.

Chief technology officer David Yacht will also be standing³ down.

Shares in the company fell as much as 9% in after-hours trading following the trading statement. They have fallen by 80% over the past year.

Shipments of BlackBerry smartphones in the quarter fell to 11.1 million, down 21% from the previous three-month period.

Shipments of the company's PlayBook tablets hit 500,000, largely due to substantial discounting.

For the full financial year, the company made a net profit of $1.2bn, down from $3.4bn in the previous year.

The results were worse than analysts⁴ had expected and RIM shares fell sharply in after-hours trading.