2AEPIBLACKCSmart Phone

1 BLACK C User Guide 2 Contents I. C AUTIONS ON MOBILE PHONE USE ............................................................................................................... 4 1.1 I NTERFERENCE ............................................................................................................................... .......... 4 1.2 R EASONABLE USE ............................................................................................................................... ..... 4 1.3 Q UALIFIED MAINTENANCE SERVICE .......................................................................................................... 4 1.4 W AT E R - RESISTANCE ............................................................................................................................... .. 4 1.5 E MERGENCY CALLS ............................................................................................................................... ... 4 2 P RECAUTIONS FOR USE OF BATTERY ........................................................................................................... 4 3 C AUTIONS FOR CHILDREN ............................................................................................................................ 5 II. K EYS AND PARTS ............................................................................................................................... ......... 6 III. S TART TO USE ............................................................................................................................... ............ 7 3.1 T O INSERT SIM CARD (S): ......................................................................................................................... 7 3.2 C HARGE THE BATTERY ............................................................................................................................. 9 IV. B ASIC FUNCTIONS ............................................................................................................................... .... 10 1. L OCK AND UNLOCK THE SCREEN .............................................................................................................. 10 2. M AKE IT YOURS ............................................................................................................................... ......... 11 3. S WITCH TO R ECENTLY U SED A PPLICATION ............................................................................................... 17 4. M AKE A CALL ............................................................................................................................... ............. 18 5. C ALL LOG ............................................................................................................................... .................. 19 3 6. A NSWERING PHONE CALLS AND REJECTION ............................................................................................. 20 7. A DD A CONTACT ............................................................................................................................... ......... 21 8. S END AND R ECEIVE MESSAGE ( S ) ............................................................................................................. 22 9. B ROWSER THE W EB ............................................................................................................................... .. 24 10. E NJOY MUSIC ............................................................................................................................... .......... 24 11. D OWNLOAD APPLICATIONS FROM P LAY S TORE ....................................................................................... 25 12. M ANAGE A PPLICATIONS ......................................................................................................................... 26 13. APPLICATIONS & UTILITIES ............................................................................................................. 27 14. S ETTINGS ............................................................................................................................... ................ 27 V. T ECHNICAL I NFORMATION ......................................................................................................................... 32 4 I. Cautions on mobile phone use 1.1 Interference All phones may be interfered, which affect phone calls. 1.2 Reasonable use Use only in the normal position. Do not touch the antenna area unnecessarily. 1.3 Qualified maintenance service Only qualified personnel may install or repair this product. 1.4 Water-resistance Your device is non water-resistant. Keep it dry. 1.5 Emergency calls Ensure the phone is switched on and in service. Enter the emergency number and press the Dialer icon. 2 Precautions for use of battery 2.1 Do not dispose of batteries near or in a fire to avoid dangers. 2.2 Do not dispose of batteries in the garbage. Dispose of batteries to assigned battery recycling center. 5 3 Cautions for children Keep your device out the reach of children in case of accidental injury caused by incorrect use of the device as toys. 6 II. Keys and parts 7  1. Receiver  2. Front Camera  3. Light sensor / Proximity sensor  4. Volume key  5. Power key  6. Audio Jack  7. Mic  8. USB port  9. Speaker  10. SIM card tray  11. Rear camera  12. Fingerprint  13. Flash light III. Start to use 3.1 To insert SIM card(S): Insert the SIM card correctly in the card slot(s) (See figure below), suggest switch off the phone when you insert SIM card. Insert the Micro SD card into the slot with the correct direction (See figure below), suggest switch off the phone when you insert Micro SD. Note: Use only compatible memory cards with this device. Incompatible memory cards may damage the card or the device and corrupt the data stored in the card. 8 9 3.2 Charge the battery During charging, the battery indicator on the phone is a thunder icon. If the device is switched off duri…

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Page 1 Shenzhen Koobee Communication Co. , Ltd. Confirmation of Material Supplier： Shenzhen Fubang Wireless Technology Co. , Ltd. Model NO： K6522Q4HX Product Name： Three-in-one antenna Spec/Type： Material code： 01.02.05.02.16522.001 Colour： Black Address： 3/F, Building 1, Dalang Joint Construction Science and Technology Industrial Park, Longhua District, Shenzhen City Contacts/phone： Zhang Haiyan 13691727201 FUBANG/QP26-08/A.0 Shenzhen Fubang Wireless Technology Co. , Ltd. Page 2 Index 1. Specifications ················································································ 3 2. Electric specifications ······································································ 3 2-1 Matching circuit diagram ······························································· 3 3. VSWR Testing ··············································································· 3 3-1 Testing connection ········································································· 3 3-2 VSWR ························································································ 3 3-3 Testing data ················································································· 4 4. Test the efficiency of the antenna .................................... ...................4 4-1 Testing field ················································································· 4 4-2 Testing results.........................................................................................4 4-3 Active testing.........................................................................................4 5. Environmental treatment..................................................................................5 6. Engineering Draw..................................................................................6 7. Measurement Report..................................................................................7 8. Reliability Test Report ..................................................................................8 9. QC Engineering Chart..................................................................................9 10. Gold thick Test Teport..................................................................................10 11. Packing Specification..................................................................................11 Shenzhen Fubang Wireless Technology Co. , Ltd. Page 3 1、Specification This report mainly provides the testing conditions of various electric and structural performance parameters for cell phone antenna ----K6520 Picture 1 shows the antenna designed by FUBANG. 2 、Matching circuit diagram 3、 VSWR Testing 3.1 Testing connection The VSWR testing devices are connected in sequence: Agilent5071C Network Analyzer →Testing Cable → Customer-providing Devices. 3.2 VSWR The following table expresses the VSWR value of antenna’s two edges of its frequency range. With regard to the relevant diagram of VSWR 3.3 Testing data K6520 WBG Return Loss GPS/WIFI/BT天线指标 频率 (MHz VSWR 频率 (MHz) VSWR Element Va l u e E1(0402) E2(0402) E3(0402) E4(0402) Note： Shenzhen Fubang Wireless Technology Co. , Ltd. Page 4 频段 发射端 接收端 GPS 1575 ≤2.0 WIFI/BT 2400 ≤2.0 2500 ≤1.3 4、Test the efficiency of the antenna Testing 4.1 Testing field LR Microwave Anechoic Chamber ：testing frequency ranges from 400MHz to 6GHz and the 40cm diameter spherical quite zone, the chamber provides less than －90dB reflectivity from 400MHz—6GHz. 4.2 Testing results The following table indicates the testing results related to Power and Sensitivity in Microwave Anechoic Chamber，concerning the relative diagram. Atenna Gain Band Gain（dBi） Freq Efficiency Freq Efficiency 1540 33% 2400 36% 1550 33% 2420 36% 1560 35% 2440 38% 1570 37% 2460 37% 1580 37% 2480 38% 1590 35% 2500 37% Freq Efficiency Freq Efficiency Freq Efficiency 5100 23% 5440 30% 5800 31% 5120 21% 5460 28% 5820 32% 5140 22% 5480 30% 5840 32% 5160 21% 5500 28% 5860 33% 5180 22% 5520 28% 5880 29% 5200 23% 5540 30% 6000 31% WIFI TRP TIS 11b-11M 1 13.14 6 12.67 11 12.52 -82.42 11a-54M 40 12.04 56 11.23 157 11.88 -71.48 Shenzhen Fubang Wireless Technology Co. , Ltd. Page 5 BT -1.2 2.4G WIFI -1.2 5G WIFI -1.5 GPS -1.2 5、Environmental treatment Environment handling of the original machine. 6.Engineering Draw Shenzhen Fubang Wireless Technology Co. , Ltd. Page 6 7.Measurement Report Shenzhen Fubang Wireless Technology Co. , Ltd. Page 7 8.Reliability T est Report Shenzhen Fubang Wireless Technology Co. , Ltd. Page 8 9.QC Engineering Chart Shenzhen Fubang Wireless Technology Co. , Ltd. Page 9 10.Gold thick Test Te port Shenzhen Fubang Wireless Technology Co. , Ltd. Page 10 1 1.Packing Specification Shenzhen Fubang Wireless Technology Co. , Ltd. Pa ge 11 用PE膜打包 with PE film packaging 防潮防水PET袋封装 Moistureproof waterproof PET bag packaging 放于纸箱内 Put in the cartons 纸箱用胶带封口 Carton sealing with duct tape 包装箱整箱外观 Cases appearance

Rev 1/26/2023 (COLOMBIANA DE COMERCIO S.A.) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05‐09‐2023 Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC ID: (2AEPIBLACKC) [COLOMBIANA DE COMERCIO S.A.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, (Applicant signature) (Julian Orozco) Rev 1/26/2023 (COLOMBIANA DE COMERCIO S.A.) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05‐09‐2023 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: (2AEPIBLACKC) [COLOMBIANA DE COMERCIO S.A.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, (Applicant signature) (Julian Orozco)

COLOMBIANA DE COMERCIO S.A. Date: 2023-05-09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2AEPIBLACKC To Whom It May Concern: This letter is to statement that Black C / Smart Phone. has been tested according to FCC Part 15B by Waltek Testing Group Co., Ltd. (Test Report No.: WTD23D03064332W001). And the SDOC file, meetting the requirements of the FCC regulations, would been provided when the device is sold by the responsible party in US. The service will not be sold until the SDOC is provided. If the sale does not have an SDOC, all responsibility is the responsibility of the applicant. Sincerely, Signature [Julian Orozco] [Manager] [COLOMBIANA DE COMERCIO S.A.]

[COLOMBIANA DE COMERCIO S.A.] [Car. 43E No 8-71] [Medellin] [Colombia] Date: [2023-05-09] Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: [2AEPIBLACKC] US Agent – Attestation Statement / Part 2.911(d)(7) [COLOMBIANA DE COMERCIO S.A.] certifies, that as of [2023-05-09], we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: [2AEPIBLACKC]. [COLOMBIANA DE COMERCIO S.A], accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of [COLOMBIANA DE COMERCIO S.A] for FCC ID: [2AEPIBLACKC]. Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: [COLOMBIANA DE COMERCIO S.A] Designated Agent: FCC US Agent, LLC Company Representative: [Julian Orozco] Designated Agent Representative: Tim Payne Signature: [Signature] Signature:

COLOMBIANA DE COMERCIO S.A. Date: May 09, 2023 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AEPIBLACKC Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type Schematics Block Diagram Operational Description Part List Part Placement Schematics PCB Layout Schematics Tune-up Procedure U-NII Device Security Statement File Name Schematics.pdf Block Diagram.pdf Operational Description.pdf Part List.pdf Part Placement Schematics.pdf PCB Layout Schematics.pdf Tune-up Procedure.pdf U-NII Device Security Statement.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, COLOMBIANA DE COMERCIO S.A. Signature Julian Orozco / Manager Typed name and Title

COLOMBIANA DE COMERCIO S.A. FCC ID: 2AEPIBLACKC POWER OF ATTORNEY Date: May 09, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group Co., Ltd. (Philo Zhong) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group Co., Ltd. (Philo Zhong) on our behalf shall have the same effect as acts of our own. This authorization expires on May 08, 2024. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, COLOMBIANA DE COMERCIO S.A. are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, COLOMBIANA DE COMERCIO S.A. Signature Julian Orozco / Manager Typed name and Title

Appendix- BLACK C -Photos Page 4 of 14 1. Photographs –Constructional Details 1.1. EUT – External View Model BLACK C FCC ID: 2AEPIBLACKC Appendix- BLACK C -Photos Page 5 of 14 Appendix- BLACK C -Photos Page 6 of 14 Appendix- BLACK C -Photos Page 7 of 14 Appendix- BLACK C -Photos Page 8 of 14

Black C Label Sample and Location

Appendix- BLACK C -Photos Page 9 of 14 1.2. EUT – Internal View Model BLACK C FCC ID: 2AEPIBLACKC BT/WIFI ANT. GSM/WCDMA/LTE Main ANT. GSM/WCDMA/LTE diversity ANT. Appendix- BLACK C -Photos Page 10 of 14 Appendix- BLACK C -Photos Page 11 of 14 Appendix- BLACK C -Photos Page 12 of 14 Appendix- BLACK C -Photos Page 13 of 14 Appendix- BLACK C -Photos Page 14 of 14 ======End======

Reference No.: WTD23D03064332W009 Page 130 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 131 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 132 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 133 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 134 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 135 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 136 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 137 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 138 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 139 of 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Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 168 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 169 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 170 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 171 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 172 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 173 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 174 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 175 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 176 of 202 Waltek Testing Group Co., Ltd. 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Reference No.: WTD23D03064332W009 Page 181 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 182 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 183 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 184 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 185 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 186 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 187 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 188 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 189 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 190 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 191 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 192 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 193 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 194 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 195 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 196 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 197 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 198 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Reference No.: WTD23D03064332W009 Page 199 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 16 SAR System Photos Liquid depth ≥ 15cm Reference No.: WTD23D03064332W009 Page 200 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 17 Setup Photos Right Head Cheek Right Head Tilt Left Head Cheek Left Head Tilt Reference No.: WTD23D03064332W009 Page 201 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Hotspot(LCD Up) Hotspot (LCD Down) Hotspot(Right Edge) Hotspot(Left Edge) Hotspot(Top Edge) Hotspot(Bottom Edge) 1.0cm separation 1.0cm se paration 1.0cm separation 1.0cm separation 1.0cm se paration 1.0cm se paration Reference No.: WTD23D03064332W009 Page 202 of 202 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 18 EUT Photos Front Side Back Side ======End of Report======

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 60 TEST REPORT Reference No. .................... : WTD23X03064340W FCC ID ................................ : 2AEPIBLACKC Applicant ........................... : COLOMBIANA DE COMERCIO S.A. Address ............................. : Car. 43E No 8-71, Medellin, Colombia Manufacturer ..................... Sichuan Koobee Communication Equipment Co., Ltd. Address ............................. 3 Floor, Building 2, 69 Gangyuan Road West Section, Lingang Development Zone, Yibin City, Sichuan Province, China Product Name ................... : Smart Phone Model No. ........................... : BLACK C Standards .......................... : FCC Part 2.1093 IEEE Std C95.1: 2019 IEEE Std C95.3: 2002 + Rev. 2008 IEC/IEEE 62209-1528 Ed. 1.0 (2020-10) Date of Receipt sample .... : 2023-04-03 Date of Test........................ : 2023-04-03 to 2023-04-20 Date of Issue ..................... : 2023-04-21 Test Report Form No. ....... : WTX_IEEE_1528W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Jack Sun Silin Chen Reference No.: WTD23X03064340W Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 60 TABLE OF CONTENTS 1. General Information ................................................................................................................................................... 4 1.1 Product Description for Equipment Under Test (EUT) ......................................................................................... 4 1.2 Test Standards .................................................................................................................................................... 5 1.3 Test Methodology ................................................................................................................................................ 5 1.4 Test Facility ......................................................................................................................................................... 5 2. Summary of Test Results .......................................................................................................................................... 6 3. Specific Absorption Rate (SAR) ................................................................................................................................ 7 3.1 Introduction .......................................................................................................................................................... 7 3.2 SAR Definition ..................................................................................................................................................... 7 4. SAR Measurement System ........................................................................................................................................ 8 4.1 The Measurement System .................................................................................................................................. 8 4.2 Probe ................................................................................................................................................................... 8 4.3 Probe Calibration Process ................................................................................................................................. 10 4.4 Phantom ............................................................................................................................................................ 11 4.5 Device Holder .................................................................................................................................................... 11 4.6 Test Equipment List ........................................................................................................................................... 12 5. Tissue Simulating Liquidss ..................................................................................................................................... 13 5.1 Composition of Tissue Simulating Liquid ........................................................................................................... 13 5.2 …

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