16877-1 – Lenovo LB720
16877-1 is the Wistron main board used in the Lenovo LB720 and Lenovo Yoga 720-15IKB. 2 files are indexed for this board: 1 BIOS file and 1 schematic.
BIOS images are 8 MB. First posted in November 2020 in BIOS Archive, Schematics & Boardviews Archive and Cyberlan Electronics.
BIOS dumps 1
Schematics 1
Board facts
| Board number | 16877-1 |
|---|---|
| Designed by | Wistron |
| Platform group | 16XXX |
| BIOS chip size | 8 MB |
| First seen | 2020-11-17 |
| Source channels | BIOS Archive, Schematics & Boardviews Archive, Cyberlan Electronics |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 16877-1
- Lenovo LB720
- Lenovo Yoga 720-15IKB
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| PDF schematic | any PDF reader; Sumatra PDF and Foxit handle large schematics well | |
| .rar | RAR archive | 7-Zip or WinRAR |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Which laptops use the 16877-1 board?
Files in the catalog link 16877-1 to the Lenovo LB720 and Lenovo Yoga 720-15IKB.
Who designed the 16877-1 board?
16877-1 is a Wistron board number used by Lenovo.
Is there a boardview for 16877-1?
No boardview has been indexed for 16877-1 yet; the schematic is available on this page.
What BIOS chip size does 16877-1 use?
The BIOS images for 16877-1 are 8 MB.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.