Cetron CT3003

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abgn+ac+ax (AX3000)
Wi-Fi6+ Router
Homepage Product page
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev Cetron CT3003
FCC ID none specified
Type wireless router
CPU1 checkY MediaTek MT7981B
CPU1 Type ARM Cortex-A53
CPU1 Speed 1.3 GHz ( 2 cores ) 64-bit
Flash1 Chip ESMT F50L1G41LB
Flash1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Size 256 MiB 268,435,456 B <br />2,097,152 Kib <br />262,144 KiB <br />2,048 Mib <br />0.25 GiB <br />
RAM1 Chip Nanya NT5CC128M16JR-EK
ETH chip1 MediaTek MT7981B
Switch MediaTek MT7531AE
Ethernet Port Count 1-1GbE-WAN
3-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types none specified
Power 12 VDC, 1 A
Connector type barrel
Serial Port (UART) yes, unpopulated, 3.3V TTL, (115200 8N1)

Flags:
Wi-Fi6

Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Radio 1
Chip1 MediaTek MT7976CN
Wireless interface OUI none specified
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 MT7976CN
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 3x3:2
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

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

Target: mediatek
Subtarget: filogic
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: 23.05.2
Current supported version: 25.12.5
LAN Hardware: MediaTek MT7531AE
WLAN Hardware: MediaTek MT7981B, MediaTek MT7976CN
Installation method(s):
GUI OEM
Install Comment:
Flash OpenWrt sysupgrade image from OEM web UI, select do not keep settings.
Recovery method(s):
see git-commit
Comment:
UART pin headers are not soldered

Cetron/OpenWrt

git • >> 
mediatek: add support for Cetron CT3003
**Hardware specification:**

- SoC: MediaTek MT7981B 2x A53
- Flash: ESMT F50L1G41LB 128MB
- RAM: Nanya NT5CC128M16JR-EK 256MB
- Ethernet: 4 x 10/100/1000 Mbps
- Switch: MediaTek MT7531AE
- WiFi: MediaTek MT7976C
- Button: Reset, Mesh
- Power: DC 12V 1A
- UART: 3.3v, 115200n8
  | Layout:   |
  | :-------- |
  | <Antenna> |
  | VCC       |
  | GND       |
  | Tx        |
  | Rx        |

**Flash instructions:**

1. Rename `openwrt-mediatek-filogic-cetron_ct3003-squashfs-factory.bin` to `factory.bin`.
2. Upload the `factory.bin` using the device's Web interface.
3. Click the upgrade button and wait for the process to finish.
4. Access the OpenWrt interface using the same password.
5. Use the 'Restore' function to reset the firmware to its initial state.

**Notes:**

If you plan to recovery the stock firmware in the future, it's advisable
to connect the device via the serial port and enter failsafe mode to
back up all the MTD partitions before proceeding the steps above.

Signed-off-by: Patricia Lee <patricialee320@gmail.com>
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