Second Amendment to Amended and Restated Limited Liability Company Agreement




 Exhibit 10.10(b) 
 SECOND AMENDMENT TO THE AMENDED AND RESTATED LIMITED LIABILITY 
 COMPANY AGREEMENT OF ROYAL STREET COMMUNICATIONS, LLC 
 THIS SECOND AMENDMENT TO THE AMENDED AND RESTATED
LIMITED LIABILITY COMPANY AGREEMENT OF ROYAL STREET COMMUNICATIONS, LLC (this “Amendment”) is effective as of February 17, 2010, by and among C9 WIRELESS, LLC, a Delaware limited liability company (“C9”),
METROPCS WIRELESS, INC., a Delaware corporation (“MPCS Member”). 
 W I T N E S S E T H:

 WHEREAS, C9 and the MPCS Member are parties to that certain Amended and Restated Limited Liability Company Agreement of
Royal Street Communications, LLC (“Royal Street”), executed on December 15, 2005 as of November 24, 2004 as amended by the First Amendment to the Amended and Restated Limited Liability Company Agreement, effective as of
January 1, 2007 (the Amended and Restated Limited Liability Company Agreement, as amended, and as may be amended, restated, supplemented or otherwise modified from time to time, the “LLC Agreement”); and 
 WHEREAS, GWI PCS1, Inc., a Delaware corporation, was an original party to the LLC Agreement and held a 75% LLC Interest in Royal Street; and

 WHEREAS, on December 31, 2008 GWI PCS1, Inc. merged into MetroPCS Wireless, Inc.; and 
 WHEREAS, C9 and the MPCS Member are the sole parties to the LLC Agreement and the sole members of Royal Street (“Parties”); and

 WHEREAS, pursuant to Section 16.8 of the LLC Agreement, Entire Agreement; Amendment; Waiver, the LLC Agreement
may be amended by “an instrument in writing signed by the Parties affected” by any such amendment; and 
 WHEREAS, C9
and the MPCS Member desire to, and have agreed to, amend the LLC Agreement to allow Royal Street to Build-Out and operate Royal Street Systems on personal communication services and advanced wireless services spectrum leased to Royal Street.

 NOW THEREFORE, in consideration of the premises set forth above, the terms and conditions contained herein and other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby agree to amend the LLC Agreement as follows: 
 1. Capitalized Terms. All capitalized terms used herein, which are not defined herein, shall have the meanings ascribed thereto in
the LLC Agreement, as amended hereby. 








 2. Amendments to Section 1.1.  
 (a) Section 1.1 of the LLC Agreement, Certain Definitions, is hereby modified and amended by deleting the
following defined terms in their entirety and substituting the following defined terms in lieu thereof: 
 “Build-Out” shall mean the construction of a PCS system in accordance with the Applicable Law, including the FCC Rules. 
 “Business” shall mean the provision of wholesale PCS Service utilizing code division multiple access (“CDMA”) technology, long-term evolution (“LTE”)
technology, or such other business as Royal Street may conduct in accordance with the terms of this Agreement. 
 “GWI” shall mean MetroPCS Wireless, Inc., a Delaware corporation as the successor-in-interest to GWI PCS1, Inc., and any successors and assigns. 
 “Market” shall mean the geographic area(s) in which Royal Street is authorized by the FCC to provide PCS Service, pursuant to a License or an approved spectrum lease. 
 “PCS” or “PCS Service(s)” shall mean personal communications services and related telecommunications services
authorized by Part 24 of the FCC Rules and advanced wireless services and related telecommunications services authorized by Part 27 of the FCC Rules. 
 “Royal Street System” shall mean the PCS system(s) using CDMA or LTE technology constructed and operated by Royal Street in each of the Markets. 
 “Substantial Completion Date” shall mean the date on which the Build-Out of the Royal Street System, for Licenses subject to
a construction requirement under Part 24 of the FCC’s rules, satisfies the construction requirements of Section 24.203 of the FCC Rules, and for approved spectrum leases, when Royal Street begins to offer commercial service on the Royal
Street System using the leased spectrum. 
 (b) Section 1.1 of the LLC Agreement, Certain
Definitions, is hereby modified and amended by inserting the phrase “, spectrum leases” after the word “Licenses” in the definition of “Royal Street Assets”. 
 3. Amendment to Section 2.10(a). Subsection 2.10(a) of the LLC Agreement is hereby modified and amended by deleting the word
“CMRS” in the third sentence in its entirety and substituting the word “PCS” in lieu thereof. 
 4.
Amendment to Section 5.3(a). Subsection 5.3(a) of the LLC Agreement, Right of First Refusal in Event of Disposition of Royal Street Assets, is hereby modified and amended by inserting the phrase “on the Licenses” before
the defined term “(the “Build-Out Date”)”. 
  

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 5. Amendment to Section 16.4. Section 16.4 of the LLC Agreement,
Notices, is hereby modified and amended by deleting the notices addresses for each and all parties and other referenced therein in their entirety and substituting the following in lieu thereof: 
 If to GWI, to: 
 MetroPCS Wireless, Inc. 
 2250 Lakeside Boulevard 
 Richardson, TX 75082 
 Attention: Legal Department 
 Facsimile: (866) 685-9618 
 with copies to: 
 Paul, Hastings, Janofsky & Walker LLP 
 875 15th Street N.W.; 
 Twelfth Floor 
 Washington, DC 20005 
 Attention: Carl W. Northrop 
 Facsimile: (202) 551-0125 
 If to the MPCS Member, to: 
 MetroPCS Communications, Inc. 
 2250 Lakeside Boulevard 
 Richardson, TX 75082 
 Attention: Legal Department 
 Facsimile: (866) 685-9618 
 with copies to: 
 Paul, Hastings, Janofsky & Walker LLP 
 875 15th Street NW 
 Twelfth Floor 
 Washington, DC 20004 
 Attention: Carl W. Northrop 
 Facsimile: (202) 551-0125 
 If to C9 Wireless, to: 
 C9 Wireless, LLC 
 PO Box 2365 
 Southampton, NY 11969 
 Attention: Robert Gerard 
 Facsimile: (631) 283-9153 
  

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 with a copy to: 
 Patton Boggs LLP 
 2550 M Street, N.W. 
 Washington, D.C. 20037 
 Attention: Paul C. Besozzi 
 Facsimile: (202) 457-6315 
 If to Royal Street, to: 
 Royal Street Communications, LLC 
 PO Box 2365 
 Southampton, NY 11969 
 Attention: Robert Gerard 
 Facsimile: (631) 283-9153 
 with a copy to: 
 Patton Boggs LLP 
 2550 M Street, N.W. 
 Washington, D.C. 20037 
 Attention: Paul C. Besozzi 
 Facsimile: (202) 457-6315 
 6. Amendment to Section 16.8. Section 16.8 of the LLC Agreement,
Entire Agreement; Amendment; Waiver, is hereby modified and amended by deleting the words “and thereof” in the first sentence in their entirety. 
 7. No Other Amendments. Except for the amendments expressly set forth above, the LLC Agreement shall remain unchanged and in full force and effect. 
 8. Effective Date. This Amendment will be effective as of the date first written above. 
 9. Representations and Warranties. Each of C9 and MPCS Member agrees, represents and warrants in favor of the other that (a) it
has the full power and authority to execute and deliver this Amendment and to perform its obligations hereunder; (b) it has taken all actions necessary for the execution and delivery of this Amendment and the performance by it of its
obligations hereunder, (c) that the Amendment has been executed and delivered by a duly authorized representative, and (d) the LLC Agreement, as modified and amended by this Amendment, constitutes a legal, valid and binding obligation of
each such Party and is enforceable against each such Party in accordance with its terms, except as may be limited by (i) applicable bankruptcy, insolvency, reorganization, moratorium or other similar laws or (ii) general principles of
equity. 
 10. Effect on the LLC Agreement. Upon the execution of this Amendment, the LLC Agreement shall be, and be
deemed to be, modified and amended in accordance herewith and the respective rights, limitations, obligations, duties and liabilities of the Parties hereto shall hereafter be determined, exercised and enforced subject in all respects to such
modifications and amendments, and all the terms and conditions of this Amendment shall be deemed to be part of the terms and conditions of the LLC Agreement, as applicable, for any and all purposes. Except as specifically provided herein, the LLC
Agreement shall remain in full force and effect, and is hereby ratified, reaffirmed and confirmed. 
  

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 11. Counterparts. This Amendment may be executed in any number of separate
counterparts, each of which shall be deemed an original and all of which, taken together, shall be deemed to constitute one and the same instrument. In proving this Amendment in any judicial proceedings, it shall not be necessary to produce or
account for more than one such counterpart signed by the party against whom such enforcement is sought. Delivery of an executed counterpart of this Amendment by facsimile or other electronic method of transmission shall be equally as effective as
delivery of an original executed counterpart of this Amendment. 
 12. Law of Contract. This Amendment and the rights and
obligations of the Parties shall be governed by and construed in accordance with and subject to the laws of the State of Delaware, without regard to conflicts of laws principles. 
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 IN WITNESS WHEREOF, this Amendment has been duly executed as of the day and year first
written above. 
  

					
	C9 WIRELESS, LLC,
	a Delaware limited liability company
		
	By:	 	 /s/ Robert A. Gerard

		 	Name:	 	Robert A. Gerard
		 	Title:	 	Sole Member
	
	 METROPCS WIRELESS, INC.,
 a Delaware corporation

		
	By:	 	 /s/ Roger D. Linquist

		 	Name:	 	Roger D. Linquist
		 	Title:	 	President and Chief Executive Officer