LG Gram Keyboard Ribbon Cable Type: A Detailed Guide for Users and Technicians
The LG Gram series has earned a reputation for its ultra-lightweight design and exceptional performance. However, even the most advanced laptops require occasional maintenance. One crucial but often overlooked component is the LG Gram keyboard ribbon cable type. Whether you’re troubleshooting a keyboard issue or replacing a damaged component, understanding this specific cable is essential. In this article, we’ll explore everything you need to know from identifying the right cable type to safely replacing it.
What Is the LG Gram Keyboard Ribbon Cable Type?
The LG Gram keyboard ribbon cable type is a flexible, flat cable that connects the keyboard to the motherboard. It transmits all keypress signals to the system’s central processor. Without it, the keyboard wouldn’t be able to communicate with the rest of the laptop.
Due to LG Gram’s slim and minimalistic design, this ribbon cable must be both compact and highly reliable. As a result, it is typically an FFC (Flat Flexible Cable) or FPC (Flexible Printed Circuit) type depending on the model.
Why Should You Understand the LG Gram Keyboard Ribbon Cable Type?
There are several reasons why knowing your LG Gram keyboard ribbon cable type is important:
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Repairs & Replacements: If your keyboard stops working, a faulty ribbon cable could be the cause.
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Keyboard Upgrades: Installing a backlit or localized keyboard requires the correct cable type.
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Avoiding Damage: Using the wrong type of ribbon cable can damage the motherboard or render the keyboard useless.
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Cost Efficiency: Identifying the right cable prevents unnecessary purchases or repair delays.
Types of Ribbon Cables Used in LG Gram Laptops
Most LG Gram models use either FFC or FPC cables, both designed to fit within the laptop’s ultra-slim profile.
1. Flat Flexible Cable (FFC)
FFC is the most commonly used LG Gram keyboard ribbon cable type. These cables are flat, wide, and usually made of plastic with embedded metal strips.
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Advantages: Lightweight, flexible, and easy to replace.
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Connector: Usually connects via a ZIF (Zero Insertion Force) socket.
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Models Used: Common in LG Gram 14Z90, 15Z90, and 16Z90 models.
2. Flexible Printed Circuit (FPC)
FPC cables are thinner and use etched copper circuits instead of embedded metal lines. They are more complex but offer greater durability.
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Advantages: Better heat resistance, more compact, higher data integrity.
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Connector Type: Similar ZIF connector but may require careful handling.
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Models Used: Seen in newer or more premium LG Gram models, like 17Z90R or models with backlit keyboards.
How to Identify the Right LG Gram Keyboard Ribbon Cable Type
To determine the right LG Gram keyboard ribbon cable type for your specific model, follow these steps:
Step 1: Check Model Information
Look for the full model number printed on the bottom of your LG Gram laptop (e.g., 17Z90Q-K.AAC9U1). Each model may have unique internal components.
Step 2: Review Official Documentation
Check LG’s official support website or repair manual, which usually includes a parts list and diagrams.
Step 3: Inspect the Existing Cable
If you are comfortable opening your laptop, you can carefully lift the bottom cover to view the ribbon cable. Most cables have specifications or serial numbers printed on them.
Step 4: Ask Experts or Online Communities
Forums like Reddit, TechPowerUp, or iFixit have experienced users who often share information about cable compatibility for specific LG Gram models.
Steps to Replace LG Gram Keyboard Ribbon Cable
Once you’ve identified the correct LG Gram keyboard ribbon cable type, replacing it is relatively straightforward with the right tools.
Tools Required:
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Precision screwdriver set
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Anti-static wristband
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Plastic pry tool
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Tweezers
Replacement Process:
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Power Off the Laptop and unplug it.
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Remove the Back Cover using a plastic pry tool and screwdriver.
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Disconnect the Battery to avoid electrical damage.
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Locate the Ribbon Cable, usually under the keyboard panel.
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Unlock the ZIF Connector by flipping the latch upward.
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Gently Remove the Old Cable and insert the new one, aligning the contact points correctly.
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Lock the Connector, reconnect the battery, and reassemble the laptop.
If you’re not comfortable doing this yourself, visit a certified technician or LG service center.
Where to Buy the Correct LG Gram Keyboard Ribbon Cable Type
Reliable ribbon cables are available from:
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LG Authorized Service Centers
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Online Retailers: Amazon, eBay, Newegg
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Laptop Parts Specialists: Sites like LaptopPartsExpert or Parts-People
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Local Electronics Stores: For urgent needs or compatibility verification
Before purchasing, double-check the seller’s return policy and make sure the cable matches your laptop’s model number.
Common Problems Related to Ribbon Cables
Sometimes, keyboard problems are wrongly attributed to software issues when the real culprit is the LG Gram keyboard ribbon cable type. Here are common symptoms:
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Some keys not working
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Keyboard not detected
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Keyboard functions intermittently
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Laptop won’t boot (BIOS keyboard error)
If any of these issues arise, replacing the ribbon cable is often a cost-effective solution.
Tips to Prevent Ribbon Cable Issues
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Avoid Spilling Liquids: Liquid damage is one of the most common reasons for cable failure.
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Handle with Care: Always shut down the laptop before opening or moving internal components.
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Use Original Parts: Generic cables may not fit properly and could damage the ZIF connectors.
Conclusion
The LG Gram keyboard ribbon cable type may seem like a small detail, but it plays a crucial role in your laptop’s functionality. Whether you’re troubleshooting, replacing a faulty keyboard, or performing an upgrade, knowing the correct ribbon cable type ensures a successful repair without further complications. As laptops get slimmer and more sophisticated, even components as small as a ribbon cable demand your attention.
