Unable to login after first dd-wrt flashing on tp-link 4900

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Niubbo
DD-WRT Novice


Joined: 08 Jun 2021
Posts: 1

PostPosted: Tue Jun 08, 2021 14:54    Post subject: Unable to login after first dd-wrt flashing on tp-link 4900 Reply with quote
Hi everybody
I tried to install dd-wrt in my tp-link WRD4900.

I TRIPLE checked everything but something has gone... wrong.

My router has hw version 1.3

I read several guides before flashing, I downloaded firmware from here:
https://dd-wrt.com/support/router-database/?model=WDR4900_1.

As suggested I reset router to factory default before flashing, then flashed using this file: factory-to-ddwrt.bin

Everything seemed gone ok but on the after the following reboot...it was not possibile to login.
So, according to various guides I performed a reset with the 30-30-30 rule twice.

Nothing to do, web interface appears but it dos not accept any password (and neither ask for a new password as should be if flashing was correct).
Alse leds behave "strange" flashing alternately.

EDIT: Now, after other 30-30-30 reset rhe web interface does NOR appera any more. Bricked?

So I think tftp is the last resource...
Can you point me to a safe guide about (with the right parameters for my router?). I feel a bit uneasy with cli.

Thnk in advance for the help
Niubbo
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kernel-panic69
DD-WRT Guru


Joined: 08 May 2018
Posts: 14125
Location: Texas, USA

PostPosted: Tue Jun 08, 2021 15:11    Post subject: Reply with quote
You don't do a 30-30-30 on Atheros. That is only for vintage Broadcom devices (WRT54* series and it's clones).

I guess searching was not an option, either, since reading enough wasn't.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316777

https://openwrt.org/toh/tp-link/tl-wdr4900

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