BBC News
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Earnings were hit by losses from its struggling network joint venture with Nokia. The unit cost the firm 1.6bn euros ($2.4bn; £1.45bn) in write-downs.
Siemens' full-year net profit tumbled 58% to 2.5bn euros. However, last year's earnings had been boosted by a one-off sale.
Siemens also said that sales and profit would fall next year.
Siemens chief executive Peter Loescher said: "To ensure the sustainable viability of businesses that have been particularly affected by the crisis we are continuing to rigorously implement all necessary measures."
The company - which makes trains, medical scanners and power generators with task management software - has been hit by the downturn with less demand for industrial goods.
On Wednesday, the company came to an agreement with six former directors over a bribery affair that rocked the firm in 2006.
The firm wants to draw a line under the affair, but two former executives have yet to settle.
The firm wants to draw a line under the affair, but two former executives have yet to settle.