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
Factory partition: <0x2da0000>
This is a modified ramips build for the netgear R6220.
Factory partition adjusted to <0x2da0000>, 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]
- Enable debug mode:
http://<router_ip>/setup.cgi?todo=debug [usually 192.168.1.1] - Copy squashfs-rootfs.bin and squashfs-kernel.bin to a USB drive
- Telnet <router_ip> and login as root
- Connect the USB drive
- Check whether USB drive is recognised
ls /mnt/shares - Enter the USB drive
cd /mnt/shares/<usb drive> - Install the binaries and reboot
mtd_write write <***squashfs-rootfs.bin> Rootfs
mtd_write write <***squashfs-kernel.bin> Kernel
reboot
- Through OpenWrt web interface
Luci > System > Upgrade > ***-sysupgrade.tar - Through OpenWrt CLI
scp ***-sysupgrade.tar root@<router_ip>:/tmp/
ssh root@<router_ip>
sysupgrade -v /tmp/***-sysupgrade.tar
-
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 -
If something goes south, use nmrpflash for brick recovery.
-
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