[xpact]

Hi there,

I have tried various images trying to unbrick my router.

The TFTP method works however I am not able to unbrick it

Here is the output of TFTP.


Connection received from 192.168.0.86 on port 5067 [15/12 12:51:14.719]
Read request for file <ArcherC9v1_tp_recovery.bin>. Mode octet [15/12 12:51:14.719]
Using local port 50525 [15/12 12:51:14.738]
<ArcherC9v1_tp_recovery.bin>: sent 25416 blks, 13012991 bytes in 22 s. 0 blk resent [15/12 12:51:36.092]


Is my router bricked or I am using wrong image? I have tried many versions from dd-wrt and tp-link with no luck.

Each time Only the icon with the connected computer lights and the light with the two arrows (not sure if represents WPS) So I have read all lights should light up.

I think I am in a bootloop with tftpd client. Could someone point me to a good image with stripped bits or something that works

Thank you

[Krankhait]

I hardly recommend to get in touch with the serial connection method.

https://www.youtube.com/watch?v=fme7kwTkttk

All of my C9v1 have a serial connector for quite a while now and it's such a big upgrade!

[dirkniemeierde]

Hi,
I have done that several times now and the unbricking process is working well.
But every new beta I try the router will brick again.
I start with the 20221206_V3_44715. That will work, but I think a newer running version will exist, or not?
Is there a last version which will work well and that should be used?

TIA
Dirk

[kernel-panic69]

Without feedback in the build threads on the C9 v1, serial logs of flash of "bad builds", there's nothing to say or do.

[dirkniemeierde]

Hi,
I down't know how, but I got it running with the last beta.
Sorry for my issue.
TIA
Dirk

[dirkniemeierde]

Hi,
I wrote, that the router is running with the latest beta 01-14-2025-r59171. But there are a few issues described in an other thread.

Can anybody give me an hint which latest beta is working passably?
I am very confused, that the latest version should be the 44715 from year 2020.

TIA

[kernel-panic69]

Do not take the router database information as the latest release.

[dirkniemeierde]

Hi,
strait that way I went. But the problem is, that there isn't a special thread where the experiences are collected by router type. I can read trough all beta build threads, but there is no verified collection for a special router. All comments and experiences are allways for some special routers.
And so it is extremly tricky to find an really running version.
It is not my place to make wishes, but it would be nice to have some stabile marked versions ervery year and not to search all beta versions.

But by the way, I booted the Archer C9 V1 with the latest beta 01-14-2025-r59171 yesterday evening and let it running until now. And I do not know why, all problems from yesterday are gone and I do not know why.
I think the less memory is the problem for that router, the last action I have done yesterday was to remove the VPN Wireguard settings. And that will be to much for that old hardware.
But the screen "Memory - Available/Total" tells me that 125304KiB are available from 131072. I have to interpret from the other side. It is 96% used I fear.
TIA
Dirk

[kernel-panic69]

Available / Total is just that. Then the meter just below that shows you how much free memory is available...

...also, there IS a special thread, but it became a cumbersome circular discussion cesspool because people chose not to search, but post.

[xpact]

[kernel-panic69]

From the source pdf guide for that method of recovery:

[xpact]

[kernel-panic69]

We'd need serial console output to see what is going on with flashing from latest TP-Link firmware, but I would imagine that there's a 3rd party firmware lockout or some such. Please refer to the device wiki information specific to the V1:

https://wiki.dd-wrt.com/wiki/index.php/TP_Link_Archer_C9

[xpact]

[kernel-panic69]

Please consider flashing a more current release and providing feedback in the appropriate build release thread(s). Thanks.