What caused the downfall of BlackBerry?

BlackBerry wasnt. The phones missed out on a bunch of features that appealed to consumers, like front and back cameras. These shortcomings ultimately led to RIMs downfall. RIMs global market share began a downward spiral, going from 20% in 2009 to less than 5% in 2012.

Does BlackBerry World still work?

On 14 December 2017, BlackBerry announced that BlackBerry World would close at the end of 2019, however the store was not closed, and continues to function as of August 2020. On 1 April 2018, BlackBerry removed payment features from BlackBerry World.

What went wrong with HTC?

The company blew its lead with poor software, confusing phone releases, and a minimal spend on marketing. Things only went from bad to worse after that, and not even great phones could make the company successful again.