Linksys MX4200

multiple revisions of this device, use caution
abgn+ac+ax (AX4200)
	Velop AX4200 Tri-Band Mesh WiFi 6 System
Homepage	Product page
Support	Support page
Downloads	Download page
Wikipedia	Linksys routers
WikiDevi.wi-cat.ru	Linksys MX4200
3rd Party Firmware
dd-wrt	Status Unknown
OpenWrt	Partial Support
Tomato any flavor	Incompatible
Gargoyle	Status Unknown
Platform
Brand • Model • Rev	Linksys MX4200 v1 (MX4050)
FCC ID	K7S-03580
Board ID	48SAQB11.0GA
Type	wireless system, mesh node
Series	Velop
CPU1	Qualcomm IPQ8174
CPU1 Type	ARM Cortex-A53
CPU1 Speed	1.4 GHz ( 4 cores )
Flash1 Chip	Fidelix FMND4G08S3K-ID
Flash1 Size	512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (NAND)
RAM1 Size	512 MiB 536,870,912 B <br />4,194,304 Kib <br />524,288 KiB <br />4,096 Mib <br />0.5 GiB <br /> (DDR3)
RAM1 Chip	ESMT M15T2G16128A-DEB x 2
ETH chip1	Qualcomm IPQ8174
Switch	Qualcomm Atheros QCA8075
Ethernet Port Count	1-1GbE-WAN; 3-1GbE-LAN
Wired Standard	IEEE 802.3i/3u/3ab
	802dot11 OUI: none specified;
Stock bootloader	U-Boot
Stock FW OS	Linux
Expansion IF types	USB 3.0
USB ports	1
USB Hub Compatible	Untested
Power	12 VDC, 3 A
Connector type	barrel
Serial Port (UART)	yes, 4-pin header, 3.3V TTL, (115200 8N1)
	Flags:; Wi-Fi 6, MU-MIMO, OFDMA, WPA3, Mesh, heatsink
	Additional chips; 2.4GHz WLAN FEM;Skyworks;SKY85340-11;;2;; 5GHz WLAN AX FEM;Skyworks;SKY85755-11;;6;; 80MHz ARM (Cortex-M33) MCU;EFR;EFR32MG21;;1;; Power Management IC;Qualcomm;PMP8074;;1;
Other
	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;
Manuf/OEM/ODM	Wistron NeWeb SAQB1 1.0GA
3rd Party Firmware Support	OpenWrt • (List \| Dev \| DLs);
Retail
FCC approval date	23 July 2020
(Est.) release date	July 2020
ASIN	B07Z5NZ9CQ , ; multiple uses
Country of manuf	China
Radio 1
Chip1	Qualcomm QCN5024
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
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	Qualcomm QCN5054
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
MIMO status	2x2:2
Wireless Standard	IEEE 802.11a/n/ac/ax
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
Radio 3
Chip1	Qualcomm QCN5054
Wireless interface OUI	none specified
Antenna Connector Type	MHF4
MIMO status	4x4:4
Wireless Standard	IEEE 802.11a/n/ac/ax
802.11ax	up to 2402 Mbps
802.11ac	up to 1733 Mbps
802.11n	up to 600 Mbps
802.11a	up to 54 Mbps
WiFi Operating Frequency	5 GHz

For a list of all currently documented Qualcomm chipsets with specifications, see Qualcomm.
For a list of all currently documented Qualcomm Atheros (QCA) chipsets with specifications, see Qualcomm Atheros.

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

• 2402 Mbps - 4SS 5GHz 802.11ax (80MHz chan.)

• 1201 Mbps - 2SS 5GHz 802.11ax (80MHz chan.)

• 574 Mbps - 2SS 2.4GHz 802.11ax (40MHz chan.) = AX4200 class

Overview

"48SAQB11.0GA" is silkscreened on the main board in the FCC photos.

This device was under short-term confidentiality, but that expired 02/01/2021 ⚠.

Linksys MX4200 (MX4050) - Velop AX4200 Mesh WiFi 6 System

FCC ID: K7S-03580 (2020-07-23) • MX4050/US (SAQB-L1)

Links of Interest

Reviews

Models

Linksys MX5 Velop AX (AX5300) - Velop AX Whole Home WiFi 6 System
Linksys MX10 Velop AX (AX5300) - Velop AX Whole Home WiFi 6 System
Linksys MX4200 (AX4200) • Qualcomm IPQ8174 (4x 1.4GHz) • Spec.
Linksys MX5300 (AX5300) • Qualcomm IPQ8072A (4x 2.2GHz) • TD
Linksys MX8500 (MX85EC, MX85MS, MX85WH) - Tri-Band Wi-Fi 6E Router

WFA ID: WFA109988 (2021-01-14) • Wi-Fi 6E 802.11ax (2.4/5/6GHz)

Flashing

NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power.

Flashing OpenWrt

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

Target: qualcommax
Subtarget: ipq807x
Package architecture: aarch64_cortex-a53
Supported Since Commit
Support started version: 24.10.0
Current supported version: fix

Unsupported Functions:
WiFi-6 160Mhz Channel
LAN Hardware: Qualcomm Atheros QCA8075
WLAN Hardware: Qualcomm QCN5024, 2x Qualcomm QCN5054
Installation method(s):
GUI OEM
Recovery method(s):
U-Boot TFTP recovery
Comment:
for u-boot tftp rename stock fw to chiron.img for v1, not sure on v2 but can be seen in u-boot by using command fw_printenv

git • >>

ipq807x: add support for Linksys MX4200 V1 and V2
Linksys MX4200 is a 802.11ax Tri-band router/AP.
Specifications:
* CPU: Qualcomm IPQ8174 Quad core Cortex-A53 1.4GHz
* RAM: 512MB of DDR3
* Storage: 512Mb NAND
* Ethernet: 4x1G RJ45 ports (QCA8075)
* WLAN:
	* 2.4GHz: Qualcomm QCN5024 2x2 802.11b/g/n/ax 574 Mbps PHY rate
	* 5GHz: Qualcomm QCN5054 2x2@80MHz or 2x2@160MHz 802.11a/b/g/n/ac/ax 2402 PHY rate
	* 5GHz: Qualcomm QCN5054 4x4@80MHz or 2x2@160MHz 802.11a/b/g/n/ac/ax 2402 PHY rate
* LED-s:
	* RGB system led

* Buttons: 1x Soft reset 1x WPS
* Power: 12V DC Jack

Installation instructions:
Open Linksys Web UI - http://192.168.1.1/ca or http://10.65.1.1/ca depending on your setup.
Login with your admin password. The default password can be found on a sticker under the device.
To enter into the support mode, click on the “CA” link and the bottom of the page.
Open the “Connectivity” menu and upload the squash-factory image with the “Choose file” button.
Click start. Ignore all the prompts and warnings by click “yes” in all the popups.
The Wifi radios are turned off by default. To configure the router, you will need to connect your computer to the LAN port of the device.
Then you would need to write openwrt to the other partition for it to work
- First Check booted partition
fw_printenv -n boot_part

- Then install Openwrt to the other partition if booted in slot 1:
mtd -r -e alt_kernel -n write openwrt-qualcommax-ipq807x-linksys_mx4200v(X)-squashfs-factory.bin alt_kernel

- If in slot 2:
mtd -r -e kernel -n write openwrt-qualcommax-ipq807x-linksys_mx4200v(X)-squashfs-factory.bin kernel

Replace (X) with your model version either 1 or 2

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Linksys MX4200

Overview

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Flashing

Flashing OpenWrt

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