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Blackberry expecting $1bn losses in quarterly results

27 September 2013 Last updated at 11:46 BST

Blackberry have warned that their losses could be almost $1bn for the three months to the end of August as they release their results for the last quarter on Friday.

There are now fears that their $4.2bn takeover offer from major shareholder Fairfax could fall through.

Mariko Oi reports.