Linksys MR6350

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abgn+ac (AC1300)
AC1300 Dual-Band Mesh WiFi 5 Router
Wikipedia Linksys routers
WikiDevi.wi-cat.ru https://techinfodepot.shoutwiki.com/wiki/Linksys MR6350
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Supported
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
BrandModelRev Linksys MR6350
FCC ID Q87-08162
Type wireless router
CPU1 checkY Qualcomm IPQ4019
CPU1 Type ARMv7 Cortex-A7
CPU1 Speed 717 MHz ( 4 cores )
Flash1 Chip Brand? Model?
Flash1 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 /> (NAND)
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 Brand? Model?
ETH chip1 Qualcomm IPQ4019
Switch Qualcomm IPQ4019
Ethernet Port Count 1-1GbE-WAN
4-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

802dot11 OUI: none specified

Stock bootloader U-Boot
Expansion IF types USB 3.0
USB ports 1
USB Hub Compatible Untested
Power 12 VDC, 1.5 A
Connector type barrel
Serial Port (UART) yes, 3.3V TTL, (115200 8N1)
Other
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
Buttons Power, Reset, WPS
Radio 1
Chip1 Qualcomm IPQ4019
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11b/g/n
n-QAM up to 400 Mbps
802.11n up to 300 Mbps
802.11g up to 54 Mbps
WiFi Operating Frequency 2.4 GHz
Radio 2
Chip1 Qualcomm IPQ4019
Wireless interface OUI none specified
Antenna Connector Type none specified
MIMO status 2x2:2
Wireless Standard IEEE 802.11a/n/ac
802.11ac up to 867 Mbps
802.11n up to 300 Mbps
802.11g up to 54 Mbps
802.11b up to 11 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 Linksys devices with specifications, see Linksys.

400 Mbps - 2SS 2.4GHz 802.11n (40MHz chan., 256-QAM),
867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.) = AC1300 class

Flashing

Flashing OpenWrt

Target: ipq40xx
Subtarget: generic
Package architecture: arm_cortex-a7_neon-vfpv4
Supported Since Commit
Support started version: 25.12.0
Current supported version: fix
LAN Hardware: Qualcomm QCA8075
WLAN Hardware: Qualcomm Atheros IPQ4019
Installation method(s):
GUI OEM, U-Boot TFTP + serial recovery
Install Comment:
Do NOT flash factory.bin image directly! Must first flash an Intermediate firmware to change kernel partition size. See Forum Topic URL for more information.
Recovery method(s):
U-Boot TFTP + serial recovery, see devicepage
Comment:
snapshot and 24.10+ need a kernel partition variable change before installation. Read doc
git • >>
ipq40xx: Add support for Linksys MR6350
This pull request is based on
- the discussions in https://forum.openwrt.org/t/adding-openwrt-support-for-linksys-mr6350
- https://github.com/openwrt/openwrt/pull/11405 which added support for similar devices.

Device Specs:
- IPQ4019
- Quad Core CPU
- 256 MB RAM
- 256 MB FLASH
- 4 LAN ports, 1 WAN port
- 2.4GHz (802.11n) and 5GHz (802.11c) wifi
- 3 LEDs (Red, blue, green) which are routed to one indicator at the top of the case
- 2 buttons (Reset, WPS)

Disassembling the device:
- There are 4 screws at the bottom of the device which must be removed
- Two are under the fron rubber feets
- Two are under the labels in the back (corner next to the rear rubber feets)

Serial interface:
- The serial interface is already populated on the device with a 6-pin header
- Pin 1 is next to the heatsink
- Pinout: 1: 3.3V, 2: TX, 3: RX, 4: unknown, 5: GND, 6: GND
- Settings: 115200, 8N1

Migrating to OpenWrt requires multiple steps:
- Load and boot the initramfs image
- Adapt U-Boot settings to support bigger kernels
- Flash the sysupgrade image

Load and boot initramfs:
- Connect serial interface
- Set up a TFTP server on IP 192.168.1.254
- Copy openwrt-ipq40xx-generic-linksys_mr6350-initramfs-zImage.itb to TFTP server
- Rename file to C0A80101.img
- Boot up the device and stop in U-Boot
- Run the following U-Boot commands after a link has been established:
  tftp
  bootm
- Initramfs image is started now.

Adapt U-Boot settings to support bigger kernels:
- Run "fw_printenv" in the initramfs image  after booting
- There should be an entry kernsize=300000 which indicates the maximum size for the kernel is 3MB
- Execute "fw_setenv kernsize 500000" to increase the max kernel size to 5MB
- Check that the change are applied with "fw_printenv"

Flash the sysupgrade image:
- Default sysupgrade routine either with a initramfs image containing LuCI or via command line.

Revert back to OEM firmware:
- Only tested with FW_MR6350_1.1.3.210129_prod.img
- Flash the OEM firmware via sysupgrade
- Forced update is required