Contents

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. General checkout
- What to do first
- Lenovo 100e Chromebook CRU list
Chapter 3. Create and use a USB repair shim
- What is a USB repair shim?
- Create a repair shim
- Boot into Developer Mode
- Disable ROM-write protection
- Use a USB repair shim to diagnose and fix problems
  - Factory test items
Chapter 4. Idetifying FRUs (CRUs)
- All FRUs (CRUs) for Lenovo 100e Chromebook
Chapter 5. Removing a FRU or CRU
- General guidelines
- Cut off the power supply from the built-in battery pack
- Remove the back cover
- Remove the LCD module
- Remove the battery pack
- Remove the speakers
- Remove the WLAN & Bluetooth combo module
- Remove the USB board
- Remove the system board
- Disassemble the LCD module
  - Remove the LCD bezel
  - Remove the LCD panel
  - Remove the hinges
  - Remove the camera board and eDP cable
Appendix A. Lenovo part numbers for replacement FRUs
Appendix B. Lenovo part numbers for CRUs and miscellaneous parts
Appendix C. Label locations
Trademarks

Lenovo Chromebook 2nd Gen AST User Guide

Lenovo Chromebook 2nd Gen AST Laptop manual cover

Pages 60

Year 2018

Language(s)

of 60

Lenovo Chromebook 2nd Gen AST Laptop Specification

The Lenovo Chromebook 2nd Gen AST is designed to offer efficient computing with a focus on simplicity and connectivity, making it ideal for educational environments and general everyday use. This lightweight laptop is powered by the AMD A-Series A4-9120C processor, which provides adequate performance for basic tasks such as web browsing, document editing, and media consumption. It runs on the Chrome OS, a streamlined operating system known for its speed, security, and automatic updates.

The device features an 11.6-inch HD display with a resolution of 1366 x 768 pixels, delivering clear and vibrant visuals suitable for videos and online content. The integrated AMD Radeon R4 graphics card supports the visual output, ensuring smooth playback and rendering of multimedia content. It comes with 4GB of DDR4 RAM, which is sufficient for multitasking in a cloud-based environment, and 32GB of eMMC storage, which, although limited, is supplemented by cloud storage solutions inherent to the Chrome OS ecosystem.

Connectivity options include two USB-C ports, two USB 3.1 Gen 1 ports, a microSD card reader, and a headphone/microphone combo jack, providing flexibility in peripheral connections and data transfer. The Chromebook supports dual-band Wi-Fi and Bluetooth 4.2 for wireless connectivity, ensuring reliable internet access and device pairing.

The Lenovo Chromebook 2nd Gen AST also boasts a durable design with reinforced ports and hinges, making it resilient against the rigors of daily use. Its battery life extends over 10 hours on a single charge, promoting uninterrupted productivity throughout the day. The device's efficient performance, combined with its robust design and user-friendly interface, makes it a practical choice for students and users seeking a straightforward computing solution.

Lenovo Chromebook 2nd Gen AST Laptop F.A.Q.

How do I perform a hard reset on my Lenovo Chromebook 2nd Gen AST?

To perform a hard reset, turn off the Chromebook, then press and hold the Refresh button and tap the Power button. Release the Refresh button once the Chromebook starts up.

What should I do if my Lenovo Chromebook is not charging?

Ensure that the charger is properly connected to both the Chromebook and the power outlet. Check for any visible damage to the charger or cable. Try using a different power outlet or charger if available.

How can I connect my Lenovo Chromebook to a Wi-Fi network?

Click on the status area in the bottom-right corner of the screen, then select 'No network' or the Wi-Fi icon. Choose your network from the list and enter the password if prompted.

What steps can I take if my Chromebook is running slow?

Close unnecessary tabs and apps, restart the Chromebook, and ensure that your Chrome OS is up to date. Consider clearing browsing data and checking for background processes using high CPU.

How do I update the Chrome OS on my Lenovo Chromebook?

Click on the status area, select 'Settings', then 'About Chrome OS'. Click 'Check for updates' and install any available updates.

Can I use external monitors with my Lenovo Chromebook 2nd Gen AST?

Yes, you can connect external monitors using the HDMI port. Ensure the monitor is powered on and select the correct input source.

What is the best way to clean the screen of my Lenovo Chromebook?

Use a microfiber cloth slightly dampened with water or a screen cleaner specifically designed for electronics. Avoid using paper towels or harsh chemicals.