TP-Link W841ND v9

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rrchicago
DD-WRT Novice


Joined: 12 Aug 2014
Posts: 5

PostPosted: Tue Aug 12, 2014 18:44    Post subject: TP-Link W841ND v9 Reply with quote
I flashed DD-WRT v24-sp2 (06/23/14) std on my W841ND v9 router. I see really bad performance with web interface and I wish to revert back to my firmware. I followed these steps:
Quote:
1. Download WinSCP and Putty (if you are using Windows machine).
2. Enable SSH and Telnet on DD-wrt.
3. Connect PC with router with LAN cable.
4. Download orig firmware from TP-LINK, extract and change name for more convinient for example: tplink.bin
5. Connect with WinSCP with SCP file protocol to router.
6. Transfer tplink.bin from PC to /tmp directory on router.
7. Close WinSCP, run Putty and connect to router with Telnet type connection.
8. While logged on router type the following command

mtd -r write /tmp/tplink.bin linux

and hit enter.


But I am getting this:
Quote:
Writing from /tmp/tplink.bin to linux ... [e]Erasing mtd failed: linux


I tried searching the forums, but I am not getting any specific answers for v9. Many posts say v9 is not supported, but I downloaded the firmware for v9 from the official list.

Is there anyway I can revert to my tp-link firmware? I am pretty new to dd-wrt. Any help would be really appreciated.

Thanks in advance!
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TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Tue Aug 12, 2014 21:45    Post subject: Reply with quote
In big topic for tl-wr841n v9.0 which is 7 pages find my archive and use the firmware in it. It is tp-link official.
rrchicago
DD-WRT Novice


Joined: 12 Aug 2014
Posts: 5

PostPosted: Wed Aug 13, 2014 2:47    Post subject: Reply with quote
Thanks for the reply. I saw the post and downloaded the files. Here is what I did:
1. Copied the tftp files and recovery file.
2. Setup the tftp server. Here are the screenshots:


3. Show Dir/Select recovery file.
4. Press and hold Reset button and start the router.
5. I can now see only Power and WPS lights.

But nothing happens after this. I try, clicking on copy on the tftp32 window, but it doesnt work. I tried to ping 192.168.0.68 but I am not getting a response. What am I missing here?
TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Wed Aug 13, 2014 8:13    Post subject: Reply with quote
I seen QUALCOMM in second picture. You need wired connection, no wireless. Turn off any firewall you have on pc. As I says in the pdf: try to rename the firmware file at last option. Very Happy

follow very very carefully instructions and use wan port, not lan
you, you must see only power and wps led lights on. This pretty good and means recovery mode
rrchicago
DD-WRT Novice


Joined: 12 Aug 2014
Posts: 5

PostPosted: Wed Aug 13, 2014 8:50    Post subject: Reply with quote
TendaW311R+ wrote:
I seen QUALCOMM in second picture. You need wired connection, no wireless.


I have Qualcomm Atheros Ethernet Controller. I have plugged in to WAN port of router. I just have to setup TFTP server as per screenshots and just connect the router? I dont have to do anything on TFTP window?
rrchicago
DD-WRT Novice


Joined: 12 Aug 2014
Posts: 5

PostPosted: Wed Aug 13, 2014 9:40    Post subject: Reply with quote
Some progress. It starts transfer now, but it throws timeout error mostly at 25% (it reached 44% once). Any idea, how can I work around?
TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Wed Aug 13, 2014 10:14    Post subject: Reply with quote
rrchicago wrote:
Some progress. It starts transfer now, but it throws timeout error mostly at 25% (it reached 44% once). Any idea, how can I work around?


I use default tftp settings. When you power on the router see if the tftp change address to 172.xxx or something else might be. see in pc's adapter speed. It must be 100 or more. try another computer ot tftp if you have


mine is in c//tftp see my settings in attachment. On youtube there is a video about tftp recovery mode. Watch it


Last edited by TendaW311R+ on Wed Aug 13, 2014 11:30; edited 1 time in total
rrchicago
DD-WRT Novice


Joined: 12 Aug 2014
Posts: 5

PostPosted: Wed Aug 13, 2014 10:58    Post subject: Reply with quote
I was able to transfer after changing anticipation window, but the router didn't reboot automatically. I waited 10-15 minutes, but nothing happened. The power LED was on and rest of the LEDs were blinking simultaneously. I rebooted manually, but its still the same.
TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Wed Aug 13, 2014 11:16    Post subject: Reply with quote
Did you renamed the firmware file ? Are you sure that thw router is ND, not just N
TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Wed Aug 13, 2014 11:33    Post subject: Reply with quote
OK, here is v9 for ND version. I downloaded from tp-link.com and just stripped the bootloader. Try recovery with it.

Just be sure that it has the same name as previous you tried.
TendaW311R+
DD-WRT User


Joined: 19 Oct 2011
Posts: 341

PostPosted: Fri Aug 15, 2014 20:14    Post subject: Reply with quote
Any news ? Did you try it ?
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