BlackBerry is more open to a breakup of the company amid concerns that Fairfax Financial Holdings may be unable to line up funding or partners for a $4.7 billion buyout, a person with knowledge of the matter said. Companies such as SAP AG, Cisco Systems and Samsung Electronics, which were approached last week by BlackBerry advisers, have indicated they’re only interested in parts of the company, people familiar with the discussions said. A breakup would let parties bid for BlackBerry’s most valuable pieces, such as its patents or enterprise network, said the people, who asked not to be identified because the talks are private. “If you break up the company, you’re going to get more than the company is worth right now,” said Sachin Shah, a strategist in special situations and merger arbitrage at New York-based Albert Fried & Co. Whether Fairfax’s bid is successful or not, “breaking it up sounds more appetizing for all involved,” he said.