Chinese electronics company Lenovo is said to be considering a bid for all of BlackBerry (BBRY), as the struggling smartphone maker continues to gauge interest beyond an initial bid from Fairfax Financial Holdings.

The Wall Street Journal reported Thursday that Lenovo has gone as far as signing a non-disclosure agreement in order to look at BlackBerry’s books.

Lenovo said it doesn’t comment on rumors or speculation. A BlackBerry spokesperson didn’t immediately respond to a request for comment.

Last month, BlackBerry agreed to a preliminary $4.7 billion buyout deal with Fairfax, a Canadian insurance firm and one of the company’s largest shareholders.

Based on earlier news reports, private equity firm Cerberus Capital Management and BlackBerry co-founder Mike Lazaridis are interested in making offers for Waterloo, Ontario-based company.

A Lenovo deal would likely face regulatory scrutiny in the U.S. and Canada, especially given BlackBerry’s role as a large provider of phones to government employees.

BlackBerry has struggled to combat the rise of Samsung and Apple (AAPL) in the smartphone world, losing significant market share. More recently, its tepid launches for new devices spurred a wider second-quarter loss.

Shares were up two cents at $8.15 in afternoon trading. The stock, which has fallen more than 30% on the year, jumped as high as $8.45 following news of the potential Lenovo bid.

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