Date: Mar. 27, 20 To: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Ref: FCC Class II Permissive change for FCC ID: 2ACCJB115 Original Grant Date: 12/11/2019 Applicant: TCL Communication Ltd. Dear Examiner, This is to request a Class II permissive change for FCC ID: 2ACCJB115
, originally granted on 12/11/2019 The major change filed under this application is:
SOFTWARE MODIFICATIONS:
Protocol Stack changes: No MMS/STK/USAT/USIM changes: No DM/SUPL/VT/FUMO/SWP/HCI: No Other changes detailed: add B17 supporting HARDWARE MODIFICATIONS:
Band changes: YES IK41US IK41UC Band 2/4/5/7/12/13/71 Band 2/4/5/7/12/13/17/71 FDD LTE TDD LTE UMTS/HSPA/HSPA+ Band 2/4/5 Band 2/4/5 GSM 850/900/1800/1900MHz 850/900/1800/1900MHz PCB Layout changes: No Main RF components changes:NO Antenna Base Band Transceiver ASM Power Duplexer Amplifier Tx SAW Filter Rx SAW Filter NO No No No No No No No No NO NO NO NO NO NO NO NO NO NO NO NO GSM NO UMTS NO LTE NO FM changes: No LCD/ Speaker/ Camera/ Vibrator changes: (indicated the changed items if yes) No Other changes detailed: NO MECHANICAL MODIFICATIONS:
Use new metal front/back cover or keypad: No Mechanical shell changes:
Whole size of EUT: No Distance of Ear reference point to bottom of handset: No Other trinkets to change the surface of handset: No Other changes detailed:
We request permission to partially use LinkKey test results from model IK41US (FCC ID: 2ACCJB115) in our applications for model IK41UC (FCC ID: 2ACCJB115). You can find details next page:
For the above, we performed full test for LTE RF B17 and SAR LTE B17, partially re-used the test results of IK41US for other parts, shown as below. For details, please refer to the relevant test reports. Items Band Comment 1.1 GSM part GSM mobile phone FCC 1.1.1 certification part22/24 850,1900 testing 1.1.2 GSM mobile phone FCC certification SAR testing 1.2 UMTS part UMTS mobile phone FCC 8501900share basic model results Frequency stability retest. 1900,850 1900850share basic model results 1.2.1 certification part22/24 850,1900 testing 8501900share basic model results Frequency stability retest. 1.2.2 1.2.3 UMTS mobile phone FCC 850,1900,17 certification SAR testing 00 UMTS mobile phone FCC certification part27 testing 1700 85019001700share basic model results share basic model resultsFrequency stability retest. 1.3 LTE part LTE mobile phone FCC 13,Band4,Ba 1.3.1 certification SAR testing nd5,Band7,F acc to Oet65 Band2Band13Band4Band5Band7 FDD12FDD71share basic model results,Band17All TCs LTE mobile phone FCC FDD5,FDD7, 1.3.2 certification part22/24/27 FDD12,FDD FDD2FDD4FDD5FDD7FDD12FDD71 FDD13share basic model results, Frequency stability retest. FDD17All TCs Band2,Band DD12,FDD71
,Band17 FDD2,FDD4, 71,FDD13,F DD17 FCC certification part15B
New test for RE and receivers testing 1.4 USB part 1.4.1 testing Sincerely yours, Zi Xiaogang