# R-Mesh APIs Returning "Unknown API" Error on BW20-12F (RTL8711Dx)

**URL:** <https://forum.amebaiot.com/t/r-mesh-apis-returning-unknown-api-error-on-bw20-12f-rtl8711dx/5118>\
**Category:** WiFi\
**Created:** [October 7, 2026, 5:20am UTC](https://forum.amebaiot.com/t/r-mesh-apis-returning-unknown-api-error-on-bw20-12f-rtl8711dx/5118 "2026-10-07T05:20:20Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![kaviyarasan3935](https://avatars.discourse-cdn.com/v4/letter/k/5fc32e/32.png) [@kaviyarasan3935](https://forum.amebaiot.com/u/kaviyarasan3935)\
**Post date:** [October 7, 2026, 5:20am UTC](https://forum.amebaiot.com/t/r-mesh-apis-returning-unknown-api-error-on-bw20-12f-rtl8711dx/5118/1 "2026-10-07T05:20:20Z")

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Board: AI-Thinker BW20-12F  
SDK: Basic SDK (Linux OS)  
Target: RTL8711Dx (AmebaDplus)  
SDK Repository: [GitHub - Ameba-AIoT/ameba-rtos: Realtek Offical IOT Software Development Kit for Ameba Series SoCs: (AmebaSmart AmebaLite AmebaDplus) · GitHub](https://github.com/Ameba-AIoT/ameba-rtos)

Description:

I am using the AI-Thinker BW20-12F board and trying to implement Wi-Fi R-Mesh communication using the Ameba RTOS Basic SDK on Linux OS.

when I use the following APIs to retrieve R-mesh node information, I get the “Unknown API” error.

Error Logs:

wifi\_rmesh\_get\_node\_info → [INIC-E] Unknown API(0x8003)  
wifi\_rmesh\_get\_child\_num → [INIC-E] Unknown API(0x8004)  
wifi\_rmesh\_get\_child\_info\_list → [INIC-E] Unknown API(0x8005)

Build Command:

./ameba.py build RTL8711Dx -a wifi\_rpp

Flash Command:

./ameba.py flash -p /dev/ttyUSB0

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/ameba/original/2X/7/7009caf971627f868f3de3d34312aff2d14c61e3.png) [@system](https://forum.amebaiot.com/u/system)\
**Post date:** [October 7, 2026, 5:20am UTC](https://forum.amebaiot.com/t/r-mesh-apis-returning-unknown-api-error-on-bw20-12f-rtl8711dx/5118/2 "2026-10-07T05:20:26Z")

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👋 Thanks for posting!

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**Author:** ![angola\_gong](https://avatars.discourse-cdn.com/v4/letter/a/59ef9b/32.png) [@angola\_gong](https://forum.amebaiot.com/u/angola_gong)\
**Post date:** [October 10, 2026, 2:26am UTC](https://forum.amebaiot.com/t/r-mesh-apis-returning-unknown-api-error-on-bw20-12f-rtl8711dx/5118/3 "2026-10-10T02:26:30Z")

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Hi, kaviyarasan3935,

please refer to [Realtek IoT | Wi-Fi Documentation - Wi-Fi R-Mesh Development Guide](https://aiot.realmcu.com/en/latest/rtos/rmesh/index.html?sso_cleaned=1) to obtain R-mesh specifications.

Additionally, please provide detailed information regarding the complete test configuration, test procedure, and test logs.