Linksys EA7500 v3

multiple revisions of this device, use caution

abgn+ac (AC1900)
Max-Stream AC1900 MU-MIMO Gigabit Wi-Fi Router
Wikipedia	Linksys routers
WikiDevi.wi-cat.ru	Linksys EA7500 v3
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Partial Support
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Linksys EA7500 v3
FCC ID	Q87-03459
Board ID	3763-53300012R
Type	wireless router
CPU1 Y	MediaTek MT7629BA
CPU1 Type	ARM Cortex-A7
CPU1 Speed	1.25 GHz ( 2 cores )
Flash1 Chip	Macronix MX35LF1GE4AB-Z4I
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 /> (SPI Serial)
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 /> (DDR3L SDRAM)
RAM1 Chip	Winbond W632GU6NB-11
ETH chip1	MediaTek MT7629BA
Switch	MediaTek MT7531BE
Ethernet Port Count	1-1GbE-WAN 4-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
802dot11 OUI: C4:41:1E (2 E, 2 W) Ethernet OUI: C4:41:1E (2 E, 2 W)
Stock bootloader	U-Boot 2014.04 rc1
Stock FW OS	Linux 4.4.146
Expansion IF types	USB 3.0
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 1 A
Connector type	barrel 5.5 mm (OD) 2.1 mm (ID) 9.5 mm (LEN)
Serial Port (UART)	yes, 5-pin header, populated, J1, 3.3V TTL, (115200 8N1)
Flags: heatsink, power switch
Other
Default SSID: LinksysXXXXX (17 addl. devices) Default IP address: 192.168.1.1 the IP 192.168.1.1 is used by 1359 additional devices of which 155 are Linksys devices Default login user: blank Default login password: admin blank:admin credentials used by 292 additional devices of which 135 are Linksys devices
Manuf/OEM/ODM	CyberTAN EWW533 A1-BL-XB-015
3rd Party Firmware Support	OpenWrt • (List | Dev | DLs) , (w/ severe limitations)
Retail
FCC approval date	08 November 2019
UPC	745883787883 (UPC DB, On eBay)
Country of manuf	Vietnam
Radio 1
Chip1	MediaTek MT7761N
Wireless interface OUI	C4:41:1E
Antenna Connector Type	none specified
MIMO status	3x3:3
Wireless Standard	IEEE 802.11b/g/n
n-QAM	up to 600 Mbps
802.11n	up to 450 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
WiFi Operating Frequency	2.4 GHz
Radio 2
Chip1	MediaTek MT7762N
Wireless interface OUI	C4:41:1E
Antenna Connector Type	none specified
MIMO status	3x3:3
Wireless Standard	IEEE 802.11a/n/ac
802.11ac	up to 1300 Mbps
802.11n	up to 450 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz
CPU1 brand Radio1 chip1 brand Radio2 chip1 brand Linksys EA7500 Qualcomm Qualcomm Atheros Qualcomm Atheros Linksys EA7500 v2 MediaTek MediaTek MediaTek Linksys EA7500 v3 MediaTek MediaTek MediaTek

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

For a list of all currently documented Linksys devices with specifications, see Linksys.

• 600 Mbps - 3SS 2.4GHz 802.11n (40MHz chan., 256-QAM),

• 1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.) = AC1900 class

Overview

"3763-53300012R" is silkscreened on the board (CyberTAN EWW533 A1)

U92S051CT00 LF 036 (Foxconn)

Hardware specification

• CPU: MediaTek MT7629BA @1.25GHz

SoC: Dual-core ARM (Cortex-A7)

• Flash: 16MB (SPI Serial)
• Memory: 256MB (DDR3L) SDRAM
• Wi-Fi: MediaTek MT7661N/MT7662N

802.11abgn/ac Dual Band (2.4/5GHz)

3×3 2.4GHz + 3×3 5GHz

• Network: 5x GbE port
• Power Source: 12V/2A via barrel

Flashing

Flashing OpenWrt

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

Target: mediatek
Subtarget: mt7629
Package architecture: arm_cortex-a7
Supported Since Commit
Support started version: 24.10.0
Current supported version: 24.10.5

Unsupported Functions:
MT7762N devices (WiFi, 2nd CPU core)
LAN Hardware: MediaTek MT7531BE
WLAN Hardware: MediaTek MT7761N, MediaTek MT7762N
WLAN Comment: 3x3:3 MIMO on both bands
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
Comment:
Limitations (same as other MT7629/MT7761N/MT7762N devices): 1. Wifi is not working 2. Second core is not working (kernel error message "CPU1: failed to come online")

git • >>

mediatek: Add support for Linksys EA7500 v3 Specification: - MT7629 CPU - MT7531 switch - MT7761N and MT7762N wifi - 256 MB RAM - 128 MB NAND flash with dual-boot partitions - 2 buttons: WPS and reset - 1 WAN port (1G) - 4 LAN ports (1G) - 1 USB port Limitations (same as other MT7629/MT7761N/MT7762N devices): - Wifi is not working - Second core is not working (kernel error message "CPU1: failed to come online") Disassembly: - There are two screws under the front rubber feet and two under the label on the bottom (in the corners towards the back, you should be able to feel them). Serial Interface: - UART pin header is already soldered on the board. Pinning from front to back: 1 - VCC 2 - TX 3 - RX 4 - n/a 5 - GND GPIO: - 1 white LED, connected to GPIO 52 - 1 reset button, connected to GPIO 60 - 1 WPS button, connected to GPIO 58 MAC Adresses: - The MAC address printed on the device label is used for LAN and WAN - The MAC address is stored in the devinfo partition in ASCII format (hw_mac_addr=aa:bb:cc:dd:ee) - 2.4 GHz wifi uses MAC of the device label + 1 - 5 GHz wifi uses MAC of the device label + 2 Flashing: - OpenWrt is only runnig in the first partition of dual boot - To ensure to be able to go back to the factory image, flash the last OEM firmware via OEM web interface. This will ensure that the OEM firmware is present on both partitions - Because of dual boot partitions, flashing via OEM interface is not supported - Start a TFTP server and provide the initramfs image. Default settings: - Router IP: 192.168.1.1 - TFTP server IP: 192.168.1.100 - TFTP file name: 7531.bin - Open the device, connect UART and select " 1. System Load Linux to SDRAM via TFTP." during startup - Adapt the settings to your environment, if required - After initramfs is booted, flash the sysupgrade image Return to OEM firmware: - Run the following commands in OpenWrt to switch to the second partition fw_setenv boot_part 2 fw_setenv bootimage 2 - Reboot the device. OEM firmware will start up again

Pictures

User Images

• 
  Internal
• 
  Board Top
• 
  Board Bottom