TP-Link Archer C9 Brick Fix (Revert To Stock Possibly)

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JMorrisonu
DD-WRT Novice


Joined: 07 Dec 2017
Posts: 1

PostPosted: Thu Dec 07, 2017 7:43    Post subject: Archer C9 V1 Reply with quote
Hello gents,
I have a very strange situation.
I have a Archer C9V1 (EU) and a tried to install the last version (beta) of ddwrt.(12-04-2017-r33986)
I install successfully this file: factory-to-ddwrt.bin. After this step when I tried to install the second bin file archer-c9v1-webflash.bin this hasn't been possible. I have to admit that I forgot to make a hard reset (30-30-30) of the router before to start to install the ddwrt firmware.
At this moment the router is working fine but the wan led is all the time orange and when I tried to make a repeater bridge for both frequencies(2.4 and 5 GHz) connection the router freeze. Is working fine with one wifi band (2.4)
I suppose that the router is not bricked since most of the function are active, but since the second bin file wasn't installed I think the firmware is not installed.
Any advice ?
Thank you in advance.
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clemon79
DD-WRT Novice


Joined: 04 May 2015
Posts: 44

PostPosted: Tue Jan 02, 2018 4:04    Post subject: Reply with quote
joaojp18 wrote:
elerion wrote:
My Archer C9 v3 bricked different from anything described.
It happened while working, few hours after I enabled jffs.

Router on power-on brely flashes all lights, then turns off all but WPS light.

In this mode I can enter recovery page at http://192.168.0.1, but any firmware I try to restore it with fails at 40%.

I can't enter standard recovery mode by holding reset during power up. It always goes to this single wps light mode.

Used dd-wrt on different routers for years, but nothing like this ever happened. (hw issue?)




Exactly what happened to me Sad Confused Crying or Very sad Crying or Very sad

https://www.dd-wrt.com/phpBB2/viewtopic.php?t=312234


Happened to me as well, AFTER a successful implementation of factory-to-ddwrt. I tried to update to the latest build, now I'm bricked on a WPS light and I don't know what to do.
kwapster
DD-WRT Novice


Joined: 16 Dec 2015
Posts: 8

PostPosted: Tue Jan 02, 2018 17:41    Post subject: Reply with quote
elerion wrote:
My Archer C9 v3 bricked different

Happened to me as well, AFTER a successful implementation of factory-to-ddwrt. I tried to update to the latest build, now I'm bricked on a WPS light and I don't know what to do.




SAME HERE
alexgrn
DD-WRT Novice


Joined: 12 Jan 2018
Posts: 2

PostPosted: Fri Jan 12, 2018 22:41    Post subject: Reply with quote
kwapster wrote:
elerion wrote:
My Archer C9 v3 bricked different

Happened to me as well, AFTER a successful implementation of factory-to-ddwrt. I tried to update to the latest build, now I'm bricked on a WPS light and I don't know what to do.




SAME HERE


Same. Nothing works when I try. I am able to upload a bin file using Tftpd, but when I check 192.168.0.1 I get the recovery page. Tried to upload everything US official fw, EU offical fw, dd-wrt fw, even D9's fw... nothing...

Also, that damn recovery page always fails at 40% on Edge. On Chrome it fails right away...

Did you fixed it yet?
cytec
DD-WRT Novice


Joined: 10 Aug 2008
Posts: 16

PostPosted: Tue Mar 13, 2018 0:42    Post subject: Reply with quote
Bricked my Archer c9 v3, successfully installed dd-wrt via factory to dd-wrt but attempting to upgrade to the latest version, it just sits with the WPS light turned on. The recovery page at 192.168.0.1 fails at 40% with the official TP-Link firmaware and dd-wrt.

Someone please find a way to bring back the v3's from this bricking via the web interface. I don't have a serial port connection. Crying or Very sad
gabirizescu
DD-WRT Novice


Joined: 28 Jan 2012
Posts: 3

PostPosted: Tue Apr 17, 2018 10:00    Post subject: dd-wrt to stock Reply with quote
Can someone tell me what steps i have to do to revert my c9v4 to stock tp link firmware, please?
router: archer c9 v4
actual firmware: : DD-WRT v3.0-r35452 std (03/20/1Cool
The router it is not bricked, but after i read many posts i'm scared, so, i need your help. Thank you
Freekolo
DD-WRT Novice


Joined: 02 Dec 2014
Posts: 4

PostPosted: Tue May 01, 2018 13:48    Post subject: Re: dd-wrt to stock Reply with quote
gabirizescu wrote:
Can someone tell me what steps i have to do to revert my c9v4 to stock tp link firmware, please?
router: archer c9 v4
actual firmware: : DD-WRT v3.0-r35452 std (03/20/1Cool
The router it is not bricked, but after i read many posts i'm scared, so, i need your help. Thank you


Hello Gabi,
view these links : https://www.dd-wrt.com/phpBB2/viewtopic.php?p=976908#976908
https://www.dd-wrt.com/phpBB2/viewtopic.php?p=987294#987294
Not same version but trying process would get some fix I presume. Wink
louierh70
DD-WRT Novice


Joined: 19 May 2018
Posts: 2

PostPosted: Sat May 19, 2018 8:46    Post subject: Reply with quote
Hi,

I hope someone can help me. I'm fairly new to installing dd wrt with the new routers. I have done it previously 4 years ago, quite easily with a DLINK DIR 615 but the other day, I bought a used Archer C9 v1 with 3.15.27 Build 20141013 Rel.53520n installed.

I followed all the instructions regarding hard reset, except that I did not upgrade the stock firmware before installing the factory-to-ddwrt.bin file. I used the file from /dd-wrtv2/downloads/betas/2018/05-13-2018-r35927/

The upload to the router went ok but after it restarted, the router went into a boot loop, all lights on for a few seconds, then all lights off.

I tried the TFTP method described here, and although it grabs the renamed firmware from the TFTP server, it still doesn't fix the boot loop problem. I have tried with the oldest firmware I can find from the official TP LINK site but the oldest downloadable file is newer than the firmware that came with the router. I have also tried using old factory-to-ddwrt.bin files from 2015 and 2016 but with no success.

I want to try with the oldorgArcherC9v1_tp_recovery.bin file that can be downloaded from the Polish TPLINK forum but the link doesn't seem to work.

I also want to try the solution provided by @chrisdmc but I don't have access to the dd wrt Webgui.

So now, I want to try the USB to TTL solution, unless somebody can suggest another solution, by using the document TP-Link Archer C9 v1 - Unbrick and back to stock step-by-step guide.pdf Is the solution still current?

Any help will be greatly appreciated! Thanks a lot!
Wind-Storm
DD-WRT Novice


Joined: 08 Jun 2011
Posts: 35

PostPosted: Wed May 23, 2018 16:34    Post subject: Archer C9 V2 problem Reply with quote
Hello,

Sorry, I haven't enough time for searching.
I get an Archer C9 V2 with DD-WRT, I need to restore the original tp-link fw. I erased the NVRAM and tried the TFTP process, but after a successfully download, nothing happen. I don't know, which is the version of the previous original firmware. I not want to open the case, because the device under warranty. Probably erased the partition which need to restore. Is it possible to restore this partition from working DD-wrt? How?
Thank You!
louierh70
DD-WRT Novice


Joined: 19 May 2018
Posts: 2

PostPosted: Wed May 23, 2018 17:49    Post subject: Reply with quote
I finally just decided to open my router and used the method described in TP-Link Archer C9 v1 - Unbrick and back to stock step-by-step guide.pdf and https://www.youtube.com/watch?v=fme7kwTkttk&t=982s and was able unbrick my router. I then was able to install the stock firmware again.

However, when I tried again to install dd wrt using any firmware, it bricked my router again. So, at my next attempt, after unbricking my router, I didn't bother installing any stock firmware and installed dd wrt firmware r27506 and this time it worked! After this, I upgraded to r33375 which according to some has the most stable openvpn implementation which is what I need the most.

I don't know about security patches, though, if it's the most secure. Anyone else can comment on a newer firmware with a stable openvpn implementation?

Thanks to the guys @Heinzek and @Aboshi and to the guy who wrote the PDF guide. It's still proving to be very useful!
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