Source: http://www.bbc.co.uk/news/business-19879861
http://www.slashgear.com/htc-revenue-dives-30-as-phones-fail-to-impress-06200223/
As Apple and Samsung are fighting over the phone market, minor phone companies that were not able to keep up with the technology trend like HTC, Nokia and Sony Ericsson are squeezed away from the market. 
Image from: http://www.cultofmac.com/186954/apple-samsung-trial-verdict-samsung-infringes-patents/
According to one of the articles, the profit of HTC, a Taiwanese mobile phone company, went from NT$18.68bn last year to NT$3.9bn this year. Comparing to Samsung and Apple, HTC’s smartphones have nothing in difference, that is, no points of difference to impress customers.
The Beats Audio has bought back their shares from HTC because HTC has failed to financially support it, this means buying a HTC phone no longer comes with a pair of beats headphones.
People complained that all HTC phones has similar design and shape. Their technology is not able to keep up with the monopolies, bad camera, so-so screen and heavy. People no longer think HTC is cool and therefore, its profit plunged.