Blackberry CEO Chen speaks during their annual general meeting for shareholders in Waterloo
Blackberry CEO John Chen speaks during their annual general meeting for shareholders in Toronto, Waterloo June 23, 2015. BlackBerry Ltd said on Tuesday its turnaround gained traction as sales at its crucial software segment rose in the first quarter and its broader revenue slide began to ease, sending its shares up 4.3 percent. REUTERS/Mark Blinch