CreatLentem CLT-R30B1

multiple revisions of this device, use caution

abgn+ac+ax (AX3000)
Wireless Wi-Fi 6 Router
Homepage	Product page
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Supported
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	CreatLentem CLT-R30B1
FCC ID	none specified
Type	wireless router
CPU1 Y	MediaTek MT7981BA
CPU1 Type	ARM Cortex-A53
CPU1 Speed	1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip	ESMT F50L1G41LB
Flash1 Size	128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (SPI NAND)
RAM1 Size	256 MiB268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br /> (DDR3)
RAM1 Chip	Brand? Model?
ETH chip1	MediaTek MT7981BA
Switch	MediaTek MT7531AE
Ethernet Port Count	4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: B4:4D:43 (1 E, 1 W) Ethernet OUI: B4:4D:43 (1 E, 1 W)
Stock bootloader	U-Boot
Expansion IF types	none specified
Power	12 VDC, 1 A
Serial Port (UART)	yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs)
Radio 1
Chip1	MediaTek MT7981BA
Chip2	MediaTek MT7976CN
Wireless interface OUI	B4:4D:43
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11b/g/n/ax
802.11ax	up to 574 Mbps
802.11n	up to 300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	MediaTek MT7981BA
Chip2	MediaTek MT7976CN
Wireless interface OUI	B4:4D:43
Antenna Connector Type	none specified
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/n/ac/ax
AX-QAM	up to 2402 Mbps
802.11ax	up to 1201 Mbps
802.11ac	up to 867 Mbps
802.11n	up to 300 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz
CPU1 brand Radio1 chip1 brand Radio2 chip1 brand CreatLentem CLT-R30B1 MediaTek MediaTek MediaTek CreatLentem CLT-R30B1 (112M) MediaTek MediaTek MediaTek

For a list of all currently documented MediaTek chipsets with specifications, see MediaTek.

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan., 1024QAM),

• 2402 Mbps - 2SS 5GHz 802.11ax (160MHz chan., 1024QAM) = AX3000 class

Flashing

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
On the OpenWrt Forum

Target: mediatek
Subtarget: filogic
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: 25.12.0
Current supported version: 25.12.5

LAN Hardware: MediaTek MT7531AE
WLAN Hardware: MediaTek MT7981BA + MediaTek MT7976CN
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
Comment:
Also known as EDUP RT2980, Dragonglass DXG21, Livinet Li228

git • >>

mediatek: add support for CreatLentem CLT-R30B1 CreatLentem CLT-R30B1 is a wireless WiFi 6 router. This device uses the CLT-R30B1_0824_V1.1 board shared by EDUP RT2980, Dragonglass DXG21, and other diamond-shaped 5-antenna routers. Specification ------------- - SoC  : MediaTek MT7981B dual-core ARM Cortex-A53 1.3 GHz - RAM  : DDR3 256 MiB - Flash  : SPI-NAND 128 MiB (ESMT F50L1G41LB) - WLAN  : MediaTek MT7976CN dual-band WiFi 6 - 2.4 GHz  : b/g/n/ax, MU-MIMO (2x 5 dBi antennas) - 5 GHz  : a/n/ac/ax, MU-MIMO (3x 5 dBi antennas) - Ethernet  : - LAN x3  : 10/100/1000 Mbps (MediaTek MT7531AE) - WAN x1  : 10/100/1000 Mbps (MT7981 internal PHY) - UART  : through-hole on PCB - assignment : (RX), (TX), (GND), [3.3V] - settings  : 115200n8 - Buttons x2  : Mesh/WPS, Reset - LEDs x2  : Status (Red, Green) - Power  : 12 VDC, 1 A, 2.1*5.5 mm Important notes --------------- The device is supplied in two variants. The main difference is the size of the mtd5 (ubi) partition in the flash layout: 64M or 112M. 112M version: Has ImmortalWrt firmware installed with LuCI WebUI. 64M version: Has stock firmware based on OpenWrt, with the WaveLink/GL.iNet WebUI and older U-Boot compared to the 112M version. Flash instructions for 112M version ----------------------------------- Follow the standard OpenWrt sysupgrade procedure without saving data. Use the clt-r30b1-112m-squashfs-sysupgrade.bin image. All checks should pass - don't proceed if a "not supported" warning is issued. Flash instructions for 64M version ---------------------------------- WebUI Method: 1. Prepare the upgrade image with clt-r30b1-squashfs-sysupgrade.bin using the script: make_staged_upgrade_tar.sh or use the prepared image: staged_openwrt_upgrade.bin Downloaded from: https://github.com/andros-ua/owrt-misc/tree/main/clt-r30b1 2. Install the prepared image using the stock WebUI update page. 3. Press and hold the reset button after reboot to wipe the stock config and gain access. SSH Method: 1. Connect via SSH using dg:ivanlee credentials. 2. Upload the clt-r30b1-squashfs-sysupgrade.bin image. 3. Use the command: sysupgrade -n All checks should pass - don't proceed if a "not supported" warning is issued. Return to stock --------------- Flash a backup of the ubi mtdblock (mtd5) using the OpenWrt sysupgrade method. Recovery -------- Both variants: Connect UART and use the U-Boot menu to flash the firmware image or boot an OpenWrt initramfs image. 112M with newer U-Boot: Power on the router while pressing the mesh button for 3 seconds. The U-Boot Flash WebUI will be available at http://192.168.1.1 MAC Addresses: ------------------------------------------------------- | Interface | MAC | Source | ---------------|-------------------|------------------- | LAN | B4:4D:43:D1:xx:xx | Factory, 0x2A | | WAN | B4:4D:43:D1:xx:xx | Factory, 0x24 | | WLAN 2.4 GHz | B4:4D:43:D2:xx:xx | Factory, 0x4 | | WLAN 5 GHz | B4:4D:43:D2:xx:xx | Factory, 0x4 + 1 | -------------------------------------------------------