BlackBerry’s latest phone faces a lengthy testing process by carriers in the United States, its biggest single market, further delaying the arrival of a product that was already more than a year late.
Verizon Wireless and AT&T, the two largest U.S. wireless-service providers, have multistep tests that can take months to complete. The devices are checked for signal strength, battery life, call quality, heat tolerance and data performance, according to the carriers. BlackBerry has said that all the carriers got the new phone at the same time, putting its wireless partners on equal footing when the testing began. The new Z10, unveiled at a New York event this week, will go on sale in the U.S. in March — more than a month after its Thursday debut in Britain.