jayanta525 / openwrt-netgear-r6220-0x2de0000

Netgear R6220 AC1200 modified OpenWrt Firmware [deprecated]

UPDATE:

The wrong NAND driver behaviour has been fixed in OpenWrt snapshots dating 2019-08-29 and later.

Downloads: 19.07.0-rc2 release

Downloads: snapshots

These builds will no longer be maintained or updated.

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Netgear R6220 AC1200 OpenWrt Firmware

Factory partition: <0x2de0000>

This is a modified ramips build for the netgear R6220.

Factory partition adjusted to <0x2de0000>, verify WAN interface MAC address with that printed on packaging.

If your R6220 is still unable to read the correct MAC address, try this build.

If the issue persists, try original builds from OpenWrt.

The package selection and configuration was intended for personal/home use and is overall lighter. This build includes LuCi interface with some useful luci-applications such as adblock, printer-server, samba, mwan3, sqm, etc. Change branch for base builds.

[Please note that, once you're using a modified OpenWrt build, packages with kernel dependencies can't be installed using opkg. Request for new builds or ipk files for manual installation]

Install Instructions:

1. Enable debug mode: http://<router_ip>/setup.cgi?todo=debug [usually 192.168.1.1]
2. Copy squashfs-rootfs.bin and squashfs-kernel.bin to a USB drive
3. Telnet <router_ip> and login as root
4. Connect the USB drive
5. Check whether USB drive is recognised ls /mnt/shares
6. Enter the USB drive cd /mnt/shares/<usb drive>
7. Install the binaries and reboot

mtd_write write <***squashfs-rootfs.bin> Rootfs
mtd_write write <***squashfs-kernel.bin> Kernel
reboot

Update Instructions:

1. Through OpenWrt web interface Luci > System > Upgrade > ***-sysupgrade.tar
2. Through OpenWrt CLI

scp ***-sysupgrade.tar root@<router_ip>:/tmp/
ssh root@<router_ip>
sysupgrade -v /tmp/***-sysupgrade.tar

Brick Recovery:

1. If Luci fails to connect and no SSH connection, try OpenWrt Failsafe to upgrade to a different build.

   • Power the router holding the WPS button until the power led starts blinking at a faster pace.
   • Assign static IP to PC 192.168.1.XXX/24
   • Telnet or SSH to 192.168.1.1
   • SCP a sysupgrade.tar firmware file to /tmp
   • On terminal

    mount_root
    sysupgrade -n -v /tmp/sysupgrade.tar
   

2. If something goes south, use nmrpflash for brick recovery.

3. Obtain router default firmware from Netgear Support.

The builds will be updated every month/on-request. Request support for customised builds. If you're having trouble, create an issue on GitHub, or request for support here