It seems i just bricked the eax12 when installing the openwrt firmware from netgear stock web interface.
During firmware laptop connection to router was lost above approx 50%. The eax was left for some time. but the lan amber light blinks fast as though it doesn't find dhcp ( i think that's what it does in those cases).
There is no wifi detected from the eax
I have rebooted a couple of times both router and AP. but to no avail.
Am i right to assume this is bricked? Can firmware be installed over Jtag and are there any schematics or pin outs available, better still instructions that could help with this?
According to the relevant commit, you can use NMRP or TFTP to recover it.
There's a nmrpflash utility here.
When you install OpenWRT, use a version released after the date of the commit (see link above), so you get EAX12 support in the download.
Hints - click me
According to the commit, you should use the "factory" image for NMRP or TFTP recovery. Downloads are in the ramips -> mt7621 folder here, just search for "eax12" and you will find the factory image.
If you encounter issues recovering the device with NMRP, plug a console cable into the router and let's see what it says on the console.
EDIT: It probably wouldn't hurt anyone if you documented the process, it seems this device does not have a wiki page yet.
Thanks. I shall have a read and will certainly document what i do.
I have, noted two different ipv6 addresses.
ULA and link local. whilst i can ping them even if the link local was initially reluctant to communicate they are now both responding. Unsure if that can help in any process.
For sure, that likely means the OS on the router has booted.
Try SSH to the link-local IPv6 address !
Problems encountered:.
Found the cmd required the -6 flag for ipv6
Keyboard didn't seem to get response to be able to type Y or N for authorisation in powershell so added the -o flag
I was then asked for password but there should be none.. pressing enter ie blank, resulted in wrong pass msg. I did notice the user to the IP had changed to the local user name instead of root. Where did i go wrong there?
I gave up on cmd and used winscp to successful copy fie across.
Now using putty,
I tried using
Sysupgrade -v /tmp*.bin
resulted in error not finding sysupgrade... so, cd to the tmp folder and tried again:
Prob: Returned image check failed.
Solution: add -F
The below works:
flagsysupgrade -v -F /openwrt-23.05.5-ramips-mt7621-netgear_eax12
-squashfs-sysupgrade.bin
Desptie completing successfully, it still doesn't find DHCP and amber led is still blinking on the lan connection. No allocated IP in router table so still cant connect to UI.
continues to ping just fine on IPV6
Any suggestions on what to do? .
turns out it was working. Only that my router (BT HUB) hadn't recognised that an IP had been allocated.
IFconfig revealed the IP was the default 192.168.1.1 n.b. i had tried this before sysupgrade but at that stage there IP was not found.
I also notice that trying to enter a null password wouldn't allow me to login despite there being no password. I tried "root" as password and gained access to web UI.
Hopefully this helps another newb.
hopefully this can help
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Good job! And congratulations on a working router 