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REPAIR GUIDE
SM-F956B/DS
SM-F956U
SM-F956U1
English. Rev.1.0
www.samsung.com

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Summarization of Contents

Usage Notices
Precautions for Repair
Safety guidelines and warnings for repairing the device to prevent damage or injury.
ESD Precautions
Measures to prevent electrostatic discharge damage to electronic components during repair.
Instructional Icons
Explanation of symbols used in the guide to indicate warnings, cautions, and notices.
Software Update
Updating Software via FOTA and Smart Switch
Instructions for updating device software using Over-The-Air (FOTA) and the Smart Switch tool.
Recovering from Software Update Failure
Steps to troubleshoot and recover the device if a software update process fails.
Performing a Factory Data Reset
Procedure to restore the device to its default settings, erasing all data.
Quality Test
Quality Test Using Samsung Members App
Guide to using the Samsung Members app for post-repair device performance evaluation.
Device Diagnostics Overview
Steps to access and perform device diagnostics through the Samsung Members app.
Detailed Test Items
Explanation of various test items covered in the device diagnostics, like NFC, SIM card, and Wi-Fi.
Specific Component Tests
Details on testing mobile network, sensors, proximity recognition, touch screen, buttons, and torch functions.
Audio and Camera Tests
Procedures for testing speaker, vibration, and camera functionalities.
Connectivity and Input Tests
Tests for location accuracy, Wi-Fi, Bluetooth, fingerprint recognition, face recognition, and wired headphones.
S Pen and Charging Tests
Guidance on testing S Pen recognition and USB/wireless charging capabilities.
Calibrations
Calibration Overview and Requirements
Importance of calibration after repair and required tools/apps like Self Repair Assistant.
Supported Parts and Calibration Functions
Table detailing which parts support specific calibration functions.
Using the Self Repair Assistant App
Step-by-step guide on downloading, installing, and using the Self Repair Assistant app.
Optical Fingerprint Sensor Calibration
Detailed procedure for calibrating the optical fingerprint sensor after screen replacement.
Resetting Battery Cycle Count
Instructions on how to reset the battery cycle count after battery replacement.
Range Sensor Calibration
Steps for calibrating range sensors when replacing specific device components.
Touch Screen Panel Calibration
Procedure to calibrate the touch screen panel for accurate touch input after screen replacement.
Speaker Calibration
Guide to calibrating speakers for optimal performance after speaker replacement.
Under-display Camera Calibration
Calibration process for the under-display camera in Fold models after screen replacement.
Digital Hall Sensor Calibration
Calibration steps for the digital hall sensor in Fold and Flip models.
Exploded View and Parts List
Exploded View of Components
Diagram illustrating the internal components of the device in an exploded view.
Comprehensive Parts List
List of all parts with their respective numbers and names for identification and ordering.
Disassembly and Assembly
Essential Tools for Repair
List of required tools and protective equipment for safe and effective device disassembly.
Fasteners and Adhesives
Details on screws, tapes, and adhesives needed for component assembly.
General Disassembly and Reassembly Precautions
Important safety guidelines and preparation steps before and after disassembling the device.
SIM Card Tray Removal and Installation
Step-by-step guide for removing and reinserting the SIM card tray.
Back Cover Disassembly and Reassembly
Procedure for safely removing and reattaching the device's back cover.
Cover Screen Disassembly and Reassembly
Instructions for removing and reinstalling the device's cover screen.
Main Microphone Removal and Installation
Steps to disassemble and reassemble the main microphone module.
Charging Port Removal and Installation
Procedure for removing and reassembling the device's charging port.
Main Board Removal and Installation
Guide for disassembling and reassembling the main logic board.
Front Camera Removal and Installation
Steps to remove and install the front camera module.
Rear Camera Removal and Installation
Procedure for disassembling and reassembling the rear camera module.
Top Speaker Removal and Installation
Guide for removing and reinstalling the top speaker module.
Bottom Speaker Removal and Installation
Steps to disassemble and reassemble the bottom speaker module.
Sub PBA Removal and Installation
Procedure for removing and reinstalling the Sub Printed Board Assembly.
Cover Camera Removal and Installation
Instructions for removing and reinstalling the cover camera module.
Side Button (Fingerprint Sensor) Removal
Steps to remove the side button assembly, including the fingerprint sensor.
Volume Button Removal and Installation
Guide for removing and reinstalling the volume button assembly.
Screen Module Disassembly and Reassembly
Procedure for removing and reassembling the entire screen module assembly.
Battery Removal and Installation
Detailed steps for removing and installing the main and sub batteries.

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