No Putty Information displayed

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware
Author Message
llFawkes17ll
DD-WRT User


Joined: 24 Jul 2018
Posts: 95

PostPosted: Thu Aug 20, 2020 12:30    Post subject: No Putty Information displayed Reply with quote
Hi, I bricked my Dir 895l and I am trying to start a serial connection but when I start putty nothing shows up on the putty screen, ie the putty screen stays blank when the router is turned on.

All the putty settings are setup as 115200/8/None/1/None in both the COM port's settings and PuTTY. Also I enabled VT100 line.

The router just stays with a solid white power light after I turn it on. It's supposed to blink orange. I tried using the reset option but no change.

Anyone know why the putty window would show any info on boot up?

I have the serial connection on the board setup correctly based on google reviews and the basic D-Link setup on other routers.
Sponsor
foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 363
Location: Earth

PostPosted: Thu Aug 20, 2020 13:30    Post subject: Reply with quote
check serial pins are correct with multimeter, find 5v using earth/ground on a shield or some earth point on board, then once you found 5v pin, find ground/earth pin, then the 2 left over are rx & tx
if you get gobbley gook putty output change rx and tx around, don't connect serial to 5v pin!
hope this helps sorry dont have or used your router to help further.
llFawkes17ll
DD-WRT User


Joined: 24 Jul 2018
Posts: 95

PostPosted: Thu Aug 20, 2020 13:34    Post subject: Reply with quote
foz111 wrote:
check serial pins are correct with multimeter, find 5v using earth/ground on a shield or some earth point on board, then once you found 5v pin, find ground/earth pin, then the 2 left over are rx & tx
if you get gobbley gook putty output change rx and tx around, don't connect serial to 5v pin!
hope this helps sorry dont have or used your router to help further.


Unfortunately I already did all those steps 😑
llFawkes17ll
DD-WRT User


Joined: 24 Jul 2018
Posts: 95

PostPosted: Sun Aug 23, 2020 21:46    Post subject: Reply with quote
Do you think that not having a resister on R202 is part of the problem? Should I try to bridge those two pins?

Asking because I saw a couple of YouTube videos showing that bridging a few pins is needed sometimes.



Screenshot_20200823-133912.png
 Description:
 Filesize:  4.4 MB
 Viewed:  254 Time(s)

Screenshot_20200823-133912.png


kernel-panic69
DD-WRT Guru


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

PostPosted: Mon Aug 24, 2020 1:39    Post subject: Reply with quote
That is highly possible. TP-Link has a bad habit of doing such things to their routers do you can't attach a proper serial terminal, so I wouldn't be surprised if that is the issue.
_________________
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
llFawkes17ll
DD-WRT User


Joined: 24 Jul 2018
Posts: 95

PostPosted: Mon Aug 24, 2020 2:09    Post subject: Reply with quote
kernel-panic69 wrote:
That is highly possible. TP-Link has a bad habit of doing such things to their routers do you can't attach a proper serial terminal, so I wouldn't be surprised if that is the issue.

As I don't have a soldering iron and the pins which need to bridged are extremely small, do you think me bridging the two ends with a screwdriver or some other type of metal would allow me to test it out? If it temporarily shows a putty output then I would go out and buy a soldering iron to further attempt to fix this router.
kernel-panic69
DD-WRT Guru


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

PostPosted: Mon Aug 24, 2020 2:17    Post subject: Reply with quote
Small jewler's type flat tip screwdriver should do the trick.
_________________
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 -> Broadcom SoC 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 can attach files in this forum
You can download files in this forum