UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September, 2014

Commission File Number 000-29898

BlackBerry Limited

(Translation of registrant’s name into English)

2200 University Avenue East,

Waterloo, Ontario, Canada

N2K 0A7

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ¨            Form 40-F  x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ¨

DOCUMENTS INCLUDED AS PART OF THIS REPORT

This Report on Form 6-K is incorporated by reference into the Registration Statements on Form S-8 of the Registrant, which were originally filed with the Securities and Exchange Commission on March 28, 2002 (File No. 333-85294), October 21, 2002 (File No. 333-100684), April 28, 2008 (File No. 333-150470), October 3, 2011 (File No. 333-177149), July 10, 2013 (File No. 333-189880), December 20, 2013 (File Nos. 333-192986 and 333-192987) and on July 25, 2014 (File No. 333-197636).

Document 1

September 26, 2014

FOR IMMEDIATE RELEASE

BlackBerry Narrows Non-GAAP Loss per Share to ($0.02) on Broad-Based Operational Progress in Fiscal 2015 Second Quarter

Waterloo, ON – BlackBerry Limited (NASDAQ: BBRY; TSX: BB), a global leader in mobile communications, today reported financial results for the three months ended August 30, 2014 (all figures in U.S. dollars and U.S. GAAP, except where otherwise indicated).

Q2 Highlights:

Q2 Results

Revenue for the second quarter of fiscal 2015 was $916 million. The revenue breakdown for the quarter was approximately 46% for hardware, 46% for services and 8% for software and other revenue. During the second quarter, the Company recognized hardware revenue on approximately 2.1 million BlackBerry smartphones. During the second quarter, approximately 2.4 million BlackBerry smartphones were sold through to end customers, which included shipments made and recognized prior to the second quarter and which reduced the Company’s inventory in channel.

Non-GAAP loss for the second quarter was $11 million, or $0.02 per share. GAAP net loss for the second quarter was $207 million, or a $0.39 loss per share. The GAAP net loss includes a non-cash charge associated with the change in the fair value of the Debentures of $167 million (the “Q2 Fiscal 2015 Debentures Fair Value Adjustment”) and pre-tax restructuring charges of $33 million related to the restructuring program. The impact of these adjustments on GAAP net loss and loss per share is summarized in a table below.

Total cash, cash equivalents, short-term and long-term investments was $3.1 billion as of August 30, 2014. The Company used $36 million in the second quarter, excluding net receipts of $47 million related to non-strategic operations during the quarter. Purchase obligations and other commitments amounted to approximately $1.6 billion as of August 30, 2014, with purchase orders with contract manufacturers representing approximately $344 million of the total.

“We delivered a solid quarter against our key operational metrics, and we are confident that we will achieve breakeven cash flow by the end of FY15,” said John Chen, Executive Chairman and CEO, BlackBerry. “Our workforce restructuring is now complete, and we are focusing on revenue growth with judicious investments to further our leadership position in enterprise mobility and security, driving us towards non-GAAP profitability during FY16.”

Outlook

The Company continues to anticipate maintaining its strong cash position, while increasingly looking for opportunities to prudently invest in growth. The Company continues to target break-even cash flow results by the end of fiscal 2015.

Reconciliation of GAAP gross margin, gross margin percentage, loss before income taxes, and net loss to Non-GAAP gross margin, gross margin percentage, loss before income taxes, net loss and loss per share:

(United States dollars, in millions except per share data)

Note: Non-GAAP gross margin, non-GAAP gross margin percentage, non-GAAP loss before income taxes, non-GAAP net loss and non-GAAP loss per share do not have a standardized meaning prescribed by GAAP and thus are not comparable to similarly titled measures presented by other issuers. The Company believes that the presentation of these non-GAAP measures enables the Company and its shareholders to better assess the Company’s operating results relative to its operating results in prior periods and improves the comparability of the information presented. Investors should consider these non-GAAP measures in the context of the Company’s GAAP results.

Supplementary Geographic Revenue Breakdown

(United States dollars, in millions except per share data)

Conference Call and Webcast

A conference call and live webcast will be held beginning at 8 am ET, which can be accessed by dialing 1-888-503-8168 or by logging on at http://ca.blackberry.com/company/investors/events.html. A replay of the conference call will also be available at approximately 10 am by dialing 1-647-436-0148 and entering pass code 8015758# or by clicking the link above. This replay will be available until midnight ET October 10th, 2014.

About BlackBerry

A global leader in mobile communications, BlackBerry® revolutionized the mobile industry when it was introduced in 1999. Today, BlackBerry aims to inspire the success of our millions of customers around the world by continuously pushing the boundaries of mobile experiences. Founded in 1984 and based in Waterloo, Ontario, BlackBerry operates offices in North America, Europe, Middle East and Africa, Asia Pacific and Latin America. The Company trades under the ticker symbols “BB” on the Toronto Stock Exchange and “BBRY” on the NASDAQ. For more information, visit www.BlackBerry.com.

Investor Contact:

BlackBerry Investor Relations

+1-519-888-7465

investor_relations@blackberry.com

###

This news release contains forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995 and Canadian securities laws, including statements regarding: BlackBerry’s expectations regarding maintaining its strong cash position while investing in growth opportunities, and the anticipated opportunities and challenges in fiscal 2015; BlackBerry’s ability to achieve break-even cash flow results by the end of fiscal 2015 and reach profitability in fiscal 2016; BlackBerry’s plans, strategies and objectives, including the anticipated benefits of recently announced strategic initiatives; anticipated demand for and the timing of, new product and service introductions, and BlackBerry’s plans and expectations relating to its existing and new product and service offerings, including BES 10, BES 12, BlackBerry 10 smartphones, services related to BBM and QNX software products; the ability to achieve further reductions in operating expenditures and maintain the cost savings realized through the restructuring program; BlackBerry’s anticipated levels of decline in service revenue in the third quarter of fiscal 2015; BlackBerry’s expectations for software revenue in fiscal 2015 and 2016; BlackBerry’s expectations regarding adjusted gross margin percentage for the next several quarters; BlackBerry’s anticipated income tax recovery rate for the remainder of fiscal 2015; BlackBerry’s expectations with respect to the sufficiency of its financial resources; BlackBerry’s estimates of purchase obligations and other contractual commitments; and assumptions and expectations described in BlackBerry’s critical accounting estimates and significant accounting policies. The terms and phrases “expect”, “anticipate”, “estimate”, “may”, “will”, “should”, “intend”, “believe”, “plan” and similar expressions are intended to identify these forward-looking statements. Forward-looking statements are based on estimates and assumptions made by BlackBerry in light of its experience and its perception of historical trends, current conditions and expected future developments, as well as other factors that BlackBerry believes are appropriate in the circumstances. Many factors could cause BlackBerry’s actual results, performance or achievements to differ materially from those expressed or implied by the forward-looking statements, including, without limitation, the factors discussed in the “Risk Factors” section of BlackBerry’s Annual Information Form, including: risks related to BlackBerry’s ability to implement and realize the benefits of its strategic initiatives, including a return to its core strengths of enterprise and security, changes to its Devices business, including the partnership with Foxconn, and the planned transition to an operating unit organizational structure consisting of the Devices business, Enterprise Services, BlackBerry Technology Solutions, including the QNX embedded business, and Messaging; BlackBerry’s ability to maintain existing enterprise customer relationships and to transition such customers to the BES 10 and BES 12 platforms and deploy BlackBerry 10 smartphones, and the risk that current BES 10 and BES 12 test installations may not convert to commercial installations; BlackBerry’s ability to enhance its current products and services, or develop new products and services in a timely manner or at competitive prices, including risks related to new product introductions; risks related to acquisitions, divestitures and investments which may negatively affect the Company’s results of operations; risks related to intense competition, rapid change and significant strategic alliances within BlackBerry’s industry, including recent and potential future strategic transactions by its competitors or carrier partners, which could continue to weaken its competitive position; risks related to BlackBerry’s ability to adapt to, and realize the anticipated benefit of, recent management changes; and the risk that uncertainty relating to BlackBerry’s previously disclosed announcements concerning its operational restructuring, recent management changes and workforce reductions, may adversely impact BlackBerry’s business, existing and future relationships with business partners and end customers of its products and services, and its ability to attract and retain key employees. These risk factors and others relating to BlackBerry are

discussed in greater detail in the “Risk Factors” section of BlackBerry’s Annual Information Form, which is included in its Annual Report on Form 40-F and the “Cautionary Note Regarding Forward-Looking Statements” section of BlackBerry’s MD&A (copies of which filings may be obtained at www.sedar.com or www.sec.gov). These factors should be considered carefully, and readers should not place undue reliance on BlackBerry’s forward-looking statements. BlackBerry has no intention and undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

The BlackBerry family of related marks, images and symbols are the exclusive properties and trademarks of BlackBerry Limited. BlackBerry, BBM, QNX and related trademarks are registered with the U.S. Patent and Trademark Office and may be pending or registered in other countries. All other brands, product names, Company names, trademarks and service marks are the properties of their respective owners.

BlackBerry Limited

Incorporated under the Laws of Ontario

(United States dollars, in millions except share and per share amounts) (unaudited)

Consolidated Statements of Operations

BlackBerry Limited

Incorporated under the Laws of Ontario

(United States dollars, in millions except per share data) (unaudited)

Consolidated Balance Sheets

BlackBerry Limited

Incorporated under the Laws of Ontario

(United States dollars, in millions except per share data) (unaudited)

Consolidated Statements of Cash Flow

Document 2

		BlackBerry Investor Relations Income Statement Summary

Adjusted loss before income taxes, adjusted net loss and adjusted loss per share do not have a standardized meaning prescribed by GAAP and thus are not comparable to similarly titled measures presented by other issuers. The Company believes that the presentation of these non-GAAP measures enables the Company and its shareholders to better assess the Company’s operating results relative to its operating results in prior periods and improves the comparability of the information presented. This non-GAAP information should not be considered as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. You are encouraged to review the Company’s filings on SEDAR and EDGAR. The Company makes no commitment to update the information above subsequently.

		BlackBerry Investor Relations Pre-Tax CORE Charge Details

The information above is supplied to provide meaningful supplemental information regarding the Company’s operating results because such information excludes amounts that are not necessarily related to its operating results. The Company believes that the presentation of these non-GAAP measures enables the Company and its shareholders to better assess the Company’s operating results relative to its operating results in prior periods and improves the comparability of the information presented. This non-GAAP information should not be considered as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. You are encouraged to review the Company’s filings on SEDAR and EDGAR. The Company makes no commitment to update the information above subsequently.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: September 26, 2014