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The Redmi 9A Original Grade (OG) Charging Board (also known as the Charging PCB or Sub-Board) is a high-performance replacement component designed to restore your device's charging and data transfer capabilities. Unlike standard aftermarket boards, the "OG" version includes the full array of ICs (Integrated Circuits) and components necessary for fast charging and consistent network signal strength. Below is the detailed product breakdown in a scannable format. When repairing a Redmi 9A, the difference between a "Copy" board and an "OG" board is significant. This OG board is designed to provide a factory-level experience. It is time to replace this internal component if your Redmi 9A exhibits any of the following behaviors: Loose Connection: You have to hold the cable at a specific angle to start charging. Slow Charging: The phone takes significantly longer to charge than it used to. Mic Failure: People cannot hear you during calls, but the speaker works fine. No Charging: The device does not respond to a charger at all. Signal Loss: Your mobile network signal dropped significantly after a previous repair or water damageOverview
Specifications
Feature
Detailed Specification
Product Name
Redmi 9A OG Charging Board (Sub-PCB)
Compatible Model
Xiaomi Redmi 9A (M2006C3LG, M2006C3LI, M2006C3LC)
Port Type
Micro-USB 2.0
Component Grade
Original Grade (OG) - Includes all ICs & Protection
On-Board Components
Charging Port, Microphone, Network Antenna Contact, ICs
Functionality
Charging, Data Sync, Voice Transmission (Mic), Signal Reception
Material
High-Density Fiber PCB with Gold-Plated Connectors
Fast Charging
Supported (Maintains original charging speeds)
Microphone Type
Digital MEMS Microphone (High Sensitivity)
Why Choose the OG Variant?
Feature
OG Board (This Product)
Standard Copy Board
Network Signal
High; includes signal amplifier components.
Low; often causes "No Service" issues.
Charging Speed
Full speed; supports original wattage.
Slow; may take 4–6 hours for a full charge.
Audio Quality
Crisp, noise-canceling MEMS microphone.
Muffled or low-volume audio during calls.
IC Protection
Full over-voltage & short-circuit protection.
Usually missing safety components.
Data Sync
Stable high-speed data transfer.
Frequently fails or only supports charging.
When to Replace Your Charging Board
| Weight |
0.007 kg |
|---|
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