TL-WR841N(D) v8 - Worldwide version - Fundraiser

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JumpingNinja
DD-WRT Novice


Joined: 27 Oct 2013
Posts: 3

PostPosted: Fri Nov 01, 2013 13:50    Post subject: Reply with quote
fishxz wrote:
since i switched to ddwrt my wlan is very unstable. i get 1-2 times per hour connection losts. my quality is at 60% and the router is 2m away.



is it fixed yet? ill just switch to stock.. the wlan sucks donkey balls
Sponsor
suhi
DD-WRT Novice


Joined: 18 Oct 2013
Posts: 6

PostPosted: Sat Nov 02, 2013 10:35    Post subject: Reply with quote
I have rly bad signal and speed on 841 v8,cant set WPA encryption Sad hope some newer builds will fix this
tukra
DD-WRT Novice


Joined: 03 Nov 2013
Posts: 3

PostPosted: Sun Nov 03, 2013 22:16    Post subject: TP-LINK TL-WR841ND Revert Help Reply with quote
I'm trying to revert my TL-WR841N v8 back to factory. There is no webrevert I can find but I found instructions on how to do it via ssh at:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=171026&highlight=wr841n

When I run mtd unfortunately I get:
Erasing mtd failed: linux

I'm afraid if my router reboots now it will brick. Please help!

UPDATE:
Turns out the firmware from tp-link includes a boot loader that must be removed before using mtd (true for all images with "boot" in the name). Too bad I did that on the device and filled up the RAM. BRICK!

Anyone else using the instructions I linked above beware. You need to clip off the front of tp-link "boot" images to get the size to 3,932,160. If your bin is already this size then don't do this.

If you have unix tools you can do:
dd if=orig.bin of=tplink.bin skip=257 bs=512
Where 'orig.bin' is the tp-link "boot" image and 'tplink.bin' is what you will copy to the router for mtd'ing. Don't be stupid like me and do the truncation operation on the router or you too will have a brick.
rizel
DD-WRT User


Joined: 08 Oct 2012
Posts: 56

PostPosted: Mon Nov 04, 2013 22:40    Post subject: Re: TP-LINK TL-WR841ND Revert Help Reply with quote
tukra wrote:
I'm trying to revert my TL-WR841N v8 back to factory. There is no webrevert I can find but I found instructions on how to do it via ssh at:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=171026&highlight=wr841n

When I run mtd unfortunately I get:
Erasing mtd failed: linux

I'm afraid if my router reboots now it will brick. Please help!

UPDATE:
Turns out the firmware from tp-link includes a boot loader that must be removed before using mtd (true for all images with "boot" in the name). Too bad I did that on the device and filled up the RAM. BRICK!

Anyone else using the instructions I linked above beware. You need to clip off the front of tp-link "boot" images to get the size to 3,932,160. If your bin is already this size then don't do this.

If you have unix tools you can do:
dd if=orig.bin of=tplink.bin skip=257 bs=512
Where 'orig.bin' is the tp-link "boot" image and 'tplink.bin' is what you will copy to the router for mtd'ing. Don't be stupid like me and do the truncation operation on the router or you too will have a brick.

follow this webrevert page....
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=85237&postdays=0&postorder=asc&start=30
silverblue
DD-WRT Novice


Joined: 17 Nov 2013
Posts: 2

PostPosted: Sun Nov 17, 2013 17:14    Post subject: Bricked my v8.4 Reply with quote
Hi all,

Downloaded and installed 05-27-2013-r21676/tplink_tl-wr841ndv8/factory-to-ddwrt.bin accidentally, intending to download the latest one 07-24-2013-r22118/tplink_tl-wr841ndv8/factory-to-ddwrt.bin.

It bricked my v8.4 router.

Please, is there a way to unbrick without a serial cable?


Thanks,
Dave
srynoname
DD-WRT Novice


Joined: 08 Nov 2013
Posts: 2

PostPosted: Wed Nov 20, 2013 21:27    Post subject: Reply with quote
On the page (router database) for Version 8.1 it says:
Quote:
Requires tl-wr841ndv8 build

Can I directly flash this image over the factory image? There's no factory-to-ddwrt on the Version 8.1 page - is it not required? Thanks!

Edit: Sorry, my fault. There a v8 subfolder, not directly a v8 file Wink
ezjose1
DD-WRT Novice


Joined: 24 Nov 2013
Posts: 1

PostPosted: Mon Nov 25, 2013 2:27    Post subject: does this work on tp-link tl-wr841d v8.2 Reply with quote
does this work on tp-link tl-wr841d v8.2 and if it does, does the repeater work on it?
silverblue
DD-WRT Novice


Joined: 17 Nov 2013
Posts: 2

PostPosted: Mon Nov 25, 2013 18:25    Post subject: Re: Bricked my v8.4 Reply with quote
silverblue wrote:
Hi all,

Downloaded and installed 05-27-2013-r21676/tplink_tl-wr841ndv8/factory-to-ddwrt.bin accidentally, intending to download the latest one 07-24-2013-r22118/tplink_tl-wr841ndv8/factory-to-ddwrt.bin.

It bricked my v8.4 router.

Please, is there a way to unbrick without a serial cable?


Thanks,
Dave


So, thanks to help from various places here and also on the Open-WRT forum I unbricked it, for a total outlay of about 2.50GBP and learned a few things along the way too. Now it's running the right DD-WRT with all the amazing features. One tip, try blutack if you don't have the requisite soldering skills! FWIW the USB TTL device I used was a CP2102 and it worked great with no garbled terminal output.
belezao
DD-WRT Novice


Joined: 04 Aug 2011
Posts: 22

PostPosted: Wed Nov 27, 2013 16:13    Post subject: Reply with quote
Hi guys,
My wr841nd ver 8.1 is bricked, to make things worst the TX line on JP1 is not working, pin is turning and there are no signal in this pin. Are there other points that can give TX and RX to try serial comunication? I believe that in chipset it is possible but I'm not very good with iron soldering, I needed another easy point to solder.
Sorry my bad english.
Dratas
DD-WRT Novice


Joined: 09 Jun 2011
Posts: 19

PostPosted: Fri Nov 29, 2013 21:50    Post subject: Reply with quote
Hello,its safe flash 8.4v(not chinese version)stock firmware to dd-wrt with this http://dd-wrt.com/dd-wrtv2/downloads/others/eko/BrainSlayer-V24-preSP2/2013/07-24-2013-r22118/tplink_tl-wr841ndv8/factory-to-ddwrt.bin and is any chances to brick this router? Rolling Eyes

Last edited by Dratas on Sat Nov 30, 2013 10:21; edited 1 time in total
belezao
DD-WRT Novice


Joined: 04 Aug 2011
Posts: 22

PostPosted: Fri Nov 29, 2013 23:25    Post subject: Reply with quote
Look at bottom of page
http://www.dd-wrt.com/wiki/index.php/Known_incompatible_devices
Dratas
DD-WRT Novice


Joined: 09 Jun 2011
Posts: 19

PostPosted: Fri Nov 29, 2013 23:36    Post subject: Reply with quote
belezao wrote:
Look at bottom of page
http://www.dd-wrt.com/wiki/index.php/Known_incompatible_devices

My router wr-841N with stock fw is (not chinese) version,so it"s safe to flash without bricking fear?Sorry for my mistype in previous post. Embarassed
sthh
DD-WRT Novice


Joined: 05 Feb 2009
Posts: 4

PostPosted: Mon Dec 02, 2013 20:18    Post subject: Reply with quote
Just to confirm :
My wr-841N V8.4 works 100% with factory-to-ddwrt.bin version 07-24-2013-r22118 › tplink_tl-wr841ndv8.

Thanks for a great job, guys Very Happy Very Happy Very Happy
tdspnr
DD-WRT Novice


Joined: 21 Dec 2013
Posts: 1

PostPosted: Sat Dec 21, 2013 5:04    Post subject: Re: does this work on tp-link tl-wr841d v8.2 Reply with quote
ezjose1 wrote:
does this work on tp-link tl-wr841d v8.2 and if it does, does the repeater work on it?


Yes. I flashed my tl-wr841nd with 07-24-2013-r22118 with out any issues. I have not tried the newer dd-wrt versions yet. I was able to make it a repeater using these directions.

http://electrodisc.com/dd-wrt/atheros/repeater.htm
C4rpe3Di3m
DD-WRT Novice


Joined: 31 Dec 2013
Posts: 2
Location: Belgrade, Serbia

PostPosted: Tue Dec 31, 2013 9:06    Post subject: Reply with quote
sthh wrote:
Just to confirm :
My wr-841N V8.4 works 100% with factory-to-ddwrt.bin version 07-24-2013-r22118 › tplink_tl-wr841ndv8.

Thanks for a great job, guys Very Happy Very Happy Very Happy


Hello. Can you please tell me from where I can download DD-WRT files for WR841N V8.4? Also I want to know how I can back to factory tp-link fw if I need it. And If yu tell me how I can set up DD-WRT WiFi on WR841N V8.4. Thank you
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