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Lenovo Manuals
Tablet
20E4
Hardware maintenance manual
Lenovo 20E4 Hardware Maintenance Manual
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Contents
Table of Contents
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Table of Contents
Table of Contents
About this Manual
Chapter 1. Safety Information
General Safety
Electrical Safety
Safety Inspection Guide
Handling Devices that Are Sensitive to Electrostatic Discharge
Grounding Requirements
Safety Notices (Multilingual Translations)
Chapter 2. Important Service Information
Strategy for Replacing Frus
Important Notice for Replacing a System Board
How to Use Error Message
Strategy for Replacing Frus for CTO, Special Bid Model, and Standard Models
Product Definition
FRU Identification
Chapter 3. General Checkout
What to Do First
Checkout Guide
Lenovo Solution Center
Quick Test Programs
UEFI Diagnostic Program
Bootable Diagnostic Programs
Power System Checkout
Checking the Built-In Battery and Operational Charging
Checking the Ac Power Adapter
Chapter 4. Related Service Information
Windows Recovery Programs (Windows 8.1)
Refreshing Your Tablet
Resetting Your Tablet to the Factory Default Settings
Using the Advanced Startup Options
Recovering Your Operating System if Windows 8.1 Fails to Start
Creating and Using Recovery Media
Windows Recovery Apps (Windows 10)
Resetting Your Computer
Using Advanced Startup Options
Recovering Your Operating System if the Windows 10 Operating System Fails to Start
Creating and Using a Recovery USB Drive
Lenovo Factory Recovery USB Key
Using Passwords
Symptom-To-FRU Index
Numeric Error Codes
Intermittent Problems
Undetermined Problems
Chapter 5. Locations
Locating Tablet Controls, Connectors, and Indicators
Locating Frus and Crus
Major Frus
Miscellaneous Kits and Other Parts
Chapter 6. FRU Replacement Notices
Screw Notices
Chapter 7. Removing or Replacing a FRU
General Guidelines
Before Servicing the Tablet
1010 Back Cover Assembly
1020 Smart Card Reader, Smart-Card-Reader Support Card, and Smart-Card-Reader Cable
1030 Power Button and Volume-Control Button
1040 LCD Cable
1050 Built-In Battery
1060 Rear-Facing Camera Module
1070 Fingerprint-Reader Module
1080 NFC Card, NFC Cable, and NFC Antenna Assembly
1090 LED Cable
1100 Front-Facing Camera Module and Front-Facing-Camera-Module Cable
1110 Wireless WAN Card
1120 Docking Support Card
Micro-HDMI-Connector/Usb-Connector/DC-In-Connector Bracket
1150 Audio-Connector Bracket
1160 Speakers
1180 Wireless-WAN Antenna Assembly
1190 System Board
1200 LCD Module
Electronic Emission Notices
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See also:
Hardware Maintenance Manual
,
User Manual
ThinkPad 10 Hardware Maintenance Manual
Machine Types: 20E3 and 20E4
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