Update: December 24,2025 Good news!
The OpenWrt forum has merged the pacth which supports the new Flash F50L1G41LC and update the OpenWrt firmware to the version 24.10.5. So if you download the OpenWrt firmware version 24.10.5 or newer version in the future to update the Cudy related models. There will be no problem.
Important Notice: November 24, 2025
Cudy AX3000 series routers manufactured starting in November 2025 (TR3000, SN code start with 2543 or later. 2543 in the SN means the 43th week in the year 2025 ) use the new Flash F50L1G41LC. Upgrading to older versions of OpenWrt intermediate firmware or OpenWrt firmware will prevent the device from booting. Therefore, we will be releasing new firmware updates for these products to add restrictions. If the device is detected to be using the new Flash, it will not be able to upgrade to older firmware versions 2.3.X or earlier. Additionally, previously provided OpenWrt intermediate firmware for older Flash devices will not be compatible.
Affected models include: AP3000 Outdoor 1.0, AP3000 Wall 1.0, M3000 1.0/2.0, TR3000 1.0, WR3000E 1.0, WR3000H 1.0, WR3000S 1.0, and WR3000P 1.0.
Cudy has released the new OpenWrt intermediate firmwares, which have been updated to Google Drive. Please switch to the new intermediate firmware.
Regarding the OpenWrt firmware, we are still waiting for the official OpenWrt forum to release an OpenWrt firmware compatible with the new Flash. Once released, please use the new OpenWrt firmware.
If the SN code is less than 2543. It uses the old flash. There is no such problem.
Warnings
This webpage lists software of devices which support OpenWrt system, before download and install the software, please note that OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.
Description
- This file can only be used when your router works under Cudy web UI.
- If the router already works under OpenWRT UI, user should restore it to Cudy official firmware first. And then upgrade the router with this firmware.
- How to restore the router to Cudy official firmware? Please read the readme in the file downloaded.
Warranty:
Cudy hereby declares
- We, Cudy, do not undertake warranty for any software that is not released by Shenzhen Cudy Technology Co., Ltd.
- We do not assume any warranty for products that have installed any software not released by Shenzhen Cudy Technology Co., Ltd.
- If you need to use openwrt software, we suggest you download it from Cudy's official website.
Download OpenWrt Firmware to Remove Signature Check: Drive
OpenWrt Firmware Finder (Not Released by Cudy): OpenWrt Firmware Selector
1469 comments
Hello Cudy Support,
I have a Cudy M3000 v2.0 (board R37) with Motorcomm YT8821 WAN PHY and ESMT F50L1G41LC SPI NAND. It is currently running stock firmware 2.4.19-20250828.
I want to install official OpenWrt 25.12.5. The M3000 1.0_2.0.zip archive contains cudy_m3000-v1-sysupgrade__20251119.bin, but this image refers to rtl8221b_phy, while my router has YT8821.
Could you please email me a Cudy-signed intermediate firmware confirmed to support this exact hardware combination? Please also confirm which OpenWrt image I should install afterward and provide the installation steps. I have not flashed the router yet.
Thank you!
Hello Cudy Support,
I have sent you this message as an email too.
My WR300 v1 bootloops after flashing the official OpenWrt intermediate
firmware (openwrt-ramips-mt76x8-cudy_wr300-squashfs-flash.bin). Stock firmware 2.5.24 works fine on this unit; the bootloop only starts after installing the
intermediate.
Serial number: S0000759261510557
Board marked as: 300100157 REV1.1
flash: cFeon QX64A-104HIP
Cause (from the UART boot log): this unit doesn’t recognize the flash chip
(JEDEC ID 1c 71 17). Newest firmware’s U-Boot recognizes it as `en25qx64a`,
but the kernel inside the intermediate (5.15.167, Sep 2024) has no driver
entry for it:
```
[ 0.350812] spi-nor spi0.0: unrecognized JEDEC id bytes: 1c 71 17 1c 71
17
[ 0.357913] spi-nor: probe of spi0.0 failed with error -2
…
[ 0.471677] Kernel panic – not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
```
Flashing the intermediate through tftp recovery also downgrades the
bootloader to an older U-Boot (Feb 11 2025) that prints
```
flash manufacture id: 1c, device id 71 17
Warning: un-recognized chip ID, please update bootloader!
```
Additionally, the TFTP recovery appears to only accept Cudy-signed images – an unsigned OpenWrt image passes the “R54” name check but is never flashed
(no “flash image / rsa verify” lines). So I could not install a patched
OpenWrt build myself;
I restored the router with the stock firmware via TFTP recovery and it
works again.
Could you please provide an updated intermediate firmware whose kernel
supports the EN25QX64A (1c 71 17)? A similar issue was fixed for the AX3000
series after its flash chip change.
Also, would you consider disabling RSA verification in the U-Boot TFTP
recovery, and/or providing a way to interrupt the U-Boot boot sequence to
reach a serial console? Otherwise an spi programmer adapter is required (like ch341a).
Thank you
Hello Cudy Support Team,
I have a Cudy WR3000 V1.0 (EU 1.0).
Current stock firmware:
2.4.19-20250828-192837
Serial number:
WR3000243506896
I would like to install official OpenWrt.
Please provide the latest Cudy-signed OpenWrt intermediate firmware compatible with my WR3000 V1.0 and my flash memory revision.
Thank you.
Hi, I have a Cudy WR3000 EU 1.0 router with serial number starting with 2451 running firmware 2.2.6 US. I would like to install OpenWRT. Can you provide me the intermediate firmware for my device?
By the way, is there any reason not to have it available in the Google Drive folder along with the other models?
@Dear Christian Boettger,
For now, no, we can’t do this job currently.
“Hello,
is there any chance that Cudy will release an OpenWRT firmware for the WR3000 v2.0 (there is one für 1.0, but nor 2.0)?
Regards"