Bricked TP-Link TL-WR941NDv5.1

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Atheros WiSOC based Hardware
Author Message
amt
DD-WRT Novice


Joined: 16 Jul 2020
Posts: 4

PostPosted: Thu Jul 16, 2020 8:05    Post subject: Bricked TP-Link TL-WR941NDv5.1 Reply with quote
Hello all,
I tried to upgrade my TL-WR941NDv5.1 and bricked, now I tried to find serial connection but could not success, I haven't seen as my board. can any one help me recover my router back. LAN port 4 keeps blinking on startup and not working. I attached board Picture.

Thanks for all
Sponsor
arssant
DD-WRT User


Joined: 14 Aug 2013
Posts: 141

PostPosted: Thu Jul 16, 2020 9:17    Post subject: Reply with quote
Hi.

Remember, google could be your best friend:

Code:
google tl-wr941nd serial


Just check for your own version: 1/2/3/4/576 existing version for correct process.

1st hit as result.
https://scheissitwiekannichhelfen.wordpress.com/2018/12/17/tp-link-tl-wr941nd-unbrick-via-serial-interface/

PS. To mod's. Topic should be move to atheros WiSOC. Unless OP tells its a v6.
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7441
Location: Texas, USA

PostPosted: Thu Jul 16, 2020 12:33    Post subject: Reply with quote
https://openwrt.org/toh/tp-link/tl-wr941nd

And the v6 is "Atheros", Qualcomm is Atheros. Also, if you look at the yellow of the LAN ports housing, it says v5.1 Wink Cool

JP1 is the serial header, pins need to be installed or you need to figure out how to jam the wires in the holes to make connection. That setup looks similar to the v6 serial header picture on the OpenWRT TOH.

_________________
Official Forum Rules, Guidelines, and Helpful InformationFirmware FAQInstallation WikiWhere Do I Download Firmware?
DON'T use Chromium-based browsersRTFM/STFW - TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
Please DO NOT PM me with questions; Ask in the forum.

---------------------------------------------------------

Linux User #377467 counter.li.org / linuxcounter.net
amt
DD-WRT Novice


Joined: 16 Jul 2020
Posts: 4

PostPosted: Thu Jul 16, 2020 13:30    Post subject: Reply with quote
arssant wrote:
Hi.

Remember, google could be your best friend:

Code:
google tl-wr941nd serial


Just check for your own version: 1/2/3/4/576 existing version for correct process.

1st hit as result.
https://scheissitwiekannichhelfen.wordpress.com/2018/12/17/tp-link-tl-wr941nd-unbrick-via-serial-interface/

PS. To mod's. Topic should be move to atheros WiSOC. Unless OP tells its a v6.

I already google it but couldnt find same as mine board. and I already checked the link you share.
thank you for help
amt
DD-WRT Novice


Joined: 16 Jul 2020
Posts: 4

PostPosted: Thu Jul 16, 2020 14:08    Post subject: Reply with quote
kernel-panic69 wrote:

And the v6 is "Atheros", Qualcomm is Atheros. Also, if you look at the yellow of the LAN ports housing, it says v5.1 Wink Cool

yes exactly v5.1
kernel-panic69 wrote:

JP1 is the serial header, pins need to be installed or you need to figure out how to jam the wires in the holes to make connection. That setup looks similar to the v6 serial header picture on the OpenWRT TOH.

but I can't find the same with my device's board to understand how connection will be.

many thanks for help
arssant
DD-WRT User


Joined: 14 Aug 2013
Posts: 141

PostPosted: Thu Jul 16, 2020 14:35    Post subject: Reply with quote
Hi.

Again google: wr941nd serial.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=313380&sid=2acc5867143e993cbe72447cccc19ad0
amt
DD-WRT Novice


Joined: 16 Jul 2020
Posts: 4

PostPosted: Fri Jul 17, 2020 12:44    Post subject: Reply with quote
arssant wrote:
Hi.

Again google: wr941nd serial.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=313380&sid=2acc5867143e993cbe72447cccc19ad0


Hello,
thank you for your help, I found with multimeter tx,rx,gnd and 3.3 but I could not success, I used that cable as below. may my serial port broken, I will try to find usb to rs232 to test.
kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 7441
Location: Texas, USA

PostPosted: Fri Jul 17, 2020 12:48    Post subject: Reply with quote
You probably just fried your router. You do not use a serial RS-232 cable, the shifting voltage is 12v on a PC com port, not 3.3v; you need a USB-UART-TTL adapter cable. There is also the possibility that there are spots where there are missing components where the solder pads need to be bridged somehow or you have to manually short them to make connection. Also, you do *not* connect Vcc; TX, RX, GND only.
_________________
Official Forum Rules, Guidelines, and Helpful InformationFirmware FAQInstallation WikiWhere Do I Download Firmware?
DON'T use Chromium-based browsersRTFM/STFW - TL;DR is NOT an excuse. • Why Should I Care What Color the Bikeshed Is?
Please DO NOT PM me with questions; Ask in the forum.

---------------------------------------------------------

Linux User #377467 counter.li.org / linuxcounter.net
Display posts from previous:    Page 1 of 1
Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Atheros WiSOC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum