Table of Contents
Cudy WR2100
The Cudy WR2100 is an 802.11ac 4×4:4 Gigabit MediaTek-based access point. It has five 1 Gbps Ethernet ports. It uses 4 external antennas for 5GHz of which 2 are also used for 2.4GHz.
Initial Notes and Warning
It is reported that the 5GHz Wi-Fi is unstable and has low performance for NSS-1 clients.
Supported versions
Hardware Highlights
- WR2100
Installation
Installation using web interface
Cudy provides a version of OpenWrt 21.02.1 that can be downloaded here and upgraded using Cudy's web interface. After this upgrade you can use the normal OpenWrt methods to change the OpenWrt firmware.
Returning to OEM firmware
Returning to the stock Cudy firmware from the OpenWrt installation is possible using TFTP, using this image. TFTP server should be configured with 192.168.1.88 as IP address.
- Press the “Reset” button and hold it. Before the Cudy router is powered on and before TFTP start to download the firmware, don't release the “Reset” button.
- Power on the Cudy router.
- You can release the reset button only when the status LED flashes red and blue quickly, or when TFTP starts downloading firmware.
Flash Layout
The following flash partitions were found using /proc/mtd:
| dev | size | erasesize | name |
|---|---|---|---|
| mtd0 | 00030000 | 00010000 | u-boot |
| mtd1 | 00010000 | 00010000 | u-boot-env |
| mtd2 | 00010000 | 00010000 | factory |
| mtd3 | 00f80000 | 00010000 | firmware |
| mtd4 | 00281614 | 00010000 | kernel |
| mtd5 | 00cfe9ec | 00010000 | rootfs |
| mtd6 | 009a0000 | 00010000 | rootfs_data |
| mtd7 | 00010000 | 00010000 | debug |
| mtd8 | 00010000 | 00010000 | backup |
| mtd9 | 00010000 | 00010000 | bdinfo |
Serial
R4 & R5 need to be shorted (0-100Ω) for the UART to work.
Use 115200 baud 8N1.
Photos
PCB Front:
PCB Back:
Backside label:
