BlackBerry reported a quarterly loss of $965m last month before signing a letter of intent to go private. It announced in August that it was putting itself up for sale.
BlackBerry has already reached an agreement to be bought for $4.7bn by a group led by Fairfax International, the private equity firm headed by former BlackBerry board-member Prem Watsa.
It is believed that the company is opening itself up to further acquisition discussions in the hope of upping that price.
A BlackBerry spokesman told Reuters: “The special committee, with the assistance of BlackBerry’s independent financial and legal advisors, is conducting a robust and thorough review of strategic alternatives.”