D821 Mainboard

Updated October 6, 2026

Overview

Product sourcing insights & recommendations

27 来源

The term "d821 mainboard" primarily refers to the core internal motherboard of the LG Google Nexus 5 (International Version). In the current market, it is categorized as a "vintage" or "legacy" replacement part, primarily traded for device restoration, data recovery, and niche tech projects Aliexpress.

Product Overview & Technical Specs

The D821 mainboard is a smartphone-scale logic board that houses the following key components :

* Processor: Qualcomm Snapdragon 800 (2.26 GHz Quad-core).

* Memory & Storage: 2GB LPDDR3 RAM; available in 16GB and 32GB flash configurations.

* Connectivity: Specifically optimized for International LTE bands (1/3/5/7/8/20), distinguishing it from the North American D820 variant.

* Form Factor: Highly modular design, compatible with the Nexus 5's 4.95" display and BL-T9 battery Rounded.

Market Trends & Pricing (2025-2026)

The market for these boards has transitioned from retail consumer electronics to a secondary repair and enthusiast niche:

* Pricing: "Pulled" or refurbished boards generally retail between $15 and $35 USD on consumer platforms like AliExpress, while rare "new" stock can reach $45–$60 USD .

* Supply Chain: Official manufacturing ceased years ago. Current supply is driven by "disassembly stock" (parts salvaged from used units) sourced primarily from electronics recycling hubs in Shenzhen Alibaba.

* Demand Drivers:

* Repairability: The Nexus 5 is a favorite in the DIY community due to its ease of repair (Phillips #00 screws).

* Niche OS Projects: There is a steady demand from users installing Ubuntu Touch or postmarketOS, as the D821 is a flagship reference device for mobile Linux .

* Legacy Data Recovery: Users often purchase these boards to revive broken devices for one-time access to old data.

Market Insights for Sourcing

* End-of-Life (EOL): Official support from Google ended in 2016 . Buyers should be aware that these boards only support up to official Android 6.0.1, though custom ROMs can extend this.

* Wholesale Reality: Finding large bulk quantities (100+ units) of "New" D821 boards is virtually impossible in 2026. Sourcing typically involves buying small batches of "Tested Working" refurbished units .

* Risk Note: Watch out for naming overlaps with industrial TV boards (e.g., TP.SK518D.PC821) or older laptop chipsets (HM55) in wholesale databases Amazon Alibaba. Always verify the part is specifically for "LG Nexus 5" before purchasing.

Here are some ways to move forward with your research:

Sources & References

27 sources cited · Verified industry data & reports

Lg D821 Motherboard

AliExpress

Features: The LG D821 motherboard comes with advanced features that enhance the overall user experience. These include support for DDR4 RAM, allowing for faster ...

Nexus 5 (d820, d821) Mainboard

Rounded.com

Get a new Mainboard for the Nexus 5 (d820, d821). Direct available. Fast shipment. Discount on phone spare parts.

Industrial Motherboards

DFI Inc

DFI single board computer and industrial motherboard, with 15-Year product life cycle and wide temperature durability, suit for industrial applications and ...

[Motherboard] How to confirm hard drive (SSD, HDD) ...

MSI

Click “Specification”. compatibility. 3. In the "Storage" field, you can see specifications of the supported hard drives for the motherboard.

TP.SK518D.PC821 4-Core WiFi TV Motherboard 108W

Amazon.com

RXJPASD TD.SK529.PB801 Android TV Motherboard 1G+8G | WiFi built-in. 30-110V input. 45W 590mA tested output. Click to see price.

FIC VA-501

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