Support: tp-link TL-WA7210

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locobyte
DD-WRT Novice


Joined: 22 Apr 2013
Posts: 10

PostPosted: Sat Jan 11, 2014 10:26    Post subject: Reply with quote
any news? Wink
Sponsor
lhue
DD-WRT Novice


Joined: 03 Mar 2014
Posts: 1

PostPosted: Mon Mar 03, 2014 12:31    Post subject: Reply with quote
Hello,

I've tried the 3020FW on the 7210...works great, so far.

Did I understand correctly:
The internal antenna is not activating using the 3020 FW?
(This would explain the poor radiation...)

What can be done to activate the internal antenna?

THX,
Leo
sr_smith
DD-WRT Novice


Joined: 02 Feb 2014
Posts: 7

PostPosted: Fri Mar 14, 2014 0:20    Post subject: Reply with quote
Hi, any news for the 7210n? Everything works fine except the internal antenna, have very poor signal.

Best regards.
Adrian.
miguelcba21
DD-WRT Novice


Joined: 10 Apr 2014
Posts: 4

PostPosted: Fri Apr 11, 2014 23:42    Post subject: Reply with quote
gpio 28 enables amplifier.


echo 28 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio28/direction
echo 1 > /sys/class/gpio/gpio28/value
Imre
DD-WRT Novice


Joined: 06 May 2014
Posts: 3

PostPosted: Tue May 06, 2014 10:04    Post subject: Nice, got it working Reply with quote
But, how to implement this GPIO information?

Imre

I want to do some research on the disabled channel 14, wich is not legal here in Europe, but using a dummyload, right?

I ran into the same issue's

1. Changed the 7210 firmware with 3020FW (With ease)
2. Discovered the antenna switch problem.
3. Purchased a 'super channel' licence (It won't work)

So! The best way was to revert to the original firmware, as mentioned above the version information prohebits that.

1. Did webrevert 3020, that worked! When choosing 'Japan' it showed the wanted channel 14. Hence, it will NOT BROADCAST on that channel.
2. So, still wanted to revert to the original firmware.

Quote:
Yes!!finally i can revert to stock Laughing

Web revert with mr3020nv1_webrevert.bin

Trim the first 0x20200 bytes of wa7210nv2_en_3_16_5_up_boot(130320)

Edit 0x40 0x43 0x44 0x47 to 30200001 & 00000001 with the software of reply 7

https://forum.openwrt.org/viewtopic.php?id=36596

Upgrade by tp link interface and back to stock again


I had i hard time understanding this, so sharing the solution.

------------------------
Trimming the first 0x20200 byte; It sounds wierd; delete the bytes until address 0X20200 !

(I used Hex editor Neo, google it: it's free)

Done that, the first bytes looked just like the other dd wrt bin's. That made me confident to go further starting that chinese programm.

In there we expect te type and version info, you see only zero's. Just type in there the fake type.

30200001 & 00000001

Tick the right ??? button and it's done.

(grinzz, updating with a newer version from TP-LINK will ask some attention now)

Imre

(Hey, you supernerts from DD-WRT, this is a challange)
miguelcba21
DD-WRT Novice


Joined: 10 Apr 2014
Posts: 4

PostPosted: Fri May 16, 2014 16:39    Post subject: Re: Nice, got it working Reply with quote
Gpio 28 enables low noise amplifier. High power amplifier is always enabled, but cant change from external antenna to horizontal or vertical. Not with gpios.
You could resolder antenna Rolling Eyes
miguelcba21
DD-WRT Novice


Joined: 10 Apr 2014
Posts: 4

PostPosted: Sat Jun 14, 2014 14:14    Post subject: Reply with quote
With resoldered antenna works awesome! but you loose external antenna, and cant select antenna, unless you use original tplink firmware, or you just could attach an external antenna.I prefer resoldering than using original firmware.The hardware is good, but the router firmware is the worser that i´ve ever used.
sr_smith
DD-WRT Novice


Joined: 02 Feb 2014
Posts: 7

PostPosted: Tue Jul 01, 2014 2:49    Post subject: Reply with quote
Hi, any news of this device?
gialandra
DD-WRT Novice


Joined: 12 Jun 2013
Posts: 12

PostPosted: Sat Jul 26, 2014 14:00    Post subject: Reply with quote
I bought this device and yes, it deserves an effort Cool
telnetboy
DD-WRT Novice


Joined: 03 Aug 2014
Posts: 1

PostPosted: Sun Aug 03, 2014 5:09    Post subject: how to install dd-wrt on tl-wa7210n ? Reply with quote
My problem is that the connection of my tl-wa7210n is not stable (tried both in ap, which ap router, which range-extender) so I'm trying to change the firmware to see if things improve. I've also tried to update the stock firmware but nothing has changed.

I have read the whole thread because I'm interested in trying the dd-wrt firmware.
Unfortunately I have not figured out how and what firmware to install?
Can you explain step by step how to install this open firmware, and maybe attach the file to download?

Thank you in advance, hello to everyone!
danymarc
DD-WRT Guru


Joined: 04 Nov 2012
Posts: 523
Location: Acapulco, Mexico

PostPosted: Sun Aug 03, 2014 8:15    Post subject: Reply with quote
telnetboy wrote:
I have read the whole thread because I'm interested in trying the dd-wrt firmware!

You did not read it all.
If you install it, there is no antenna, you have to resolder one, file is in post 4 page 1, you need to be logged to see it.

_________________
TP-Link: TL-WR741ND V4
TP-Link: TL-WR842ND V2


Last edited by danymarc on Fri Nov 07, 2014 13:14; edited 1 time in total
^Active^
DD-WRT Novice


Joined: 21 Sep 2014
Posts: 1

PostPosted: Mon Sep 22, 2014 22:24    Post subject: Reply with quote
Hi guys. I have upgraded my 7210n with the firmware you supplied just for the fun of - it it was useless for my because of the instability and i had to replaced it.
Now I came upon a problem it broadcasts but it has a very poor reception even with the external antenna is there a way to do something? I just want to experiment on it no problem at all if I have to solder something or even if I brick it.
miguelcba21
DD-WRT Novice


Joined: 10 Apr 2014
Posts: 4

PostPosted: Sat Sep 27, 2014 3:12    Post subject: Reply with quote
I´m using TP-Link TL-MR3020 openwrt firmware(openwrt-ar71xx-generic-tl-mr3020-v1-squashfs-factory.bin) with this following startup settings:
echo 28 > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio28/direction
echo 1 > /sys/class/gpio/gpio28/value

Also i´ve resoldered vertical antenna to external. Works very good. Original firmware always broadcasts, no matter the settings you have.

You need a short wifi coaxial cable.
Imre
DD-WRT Novice


Joined: 06 May 2014
Posts: 3

PostPosted: Fri Nov 07, 2014 12:26    Post subject: Reply with quote
For those who want do dig in further:

The antenna's are NOT switched by GPIO's. Following the PCB stripes it seems that two signals can come from the AR9331 chip.

Reading this :

http://www.eeboard.com/wp-content/uploads/downloads/2013/08/AR9331.pdf

Confirm's it, the different antenna modes are switched by the chip itself by setting certain bits in certain words.

Doing a bit naughty, and I came up with this string found in ath_dev.ko

ath_set_tx_antenna_select

Hope this helps.

Edit: As we can see in the nice picture above: The signal is devided by the S1, s2 and S3, wich are (I presume) switches.

The datasheet states about "External Switch Control" pins.

ANTA B52 O
ANTB A59 O
ANTC A60 O
ANTD B53 O

The pinout here http://wiki.openwrt.org/toh/tp-link/tl-wr703n/ar9331_pinout shows that these pins are unused in TL-WR703N and TL-MR3020

The TL-WA7210n uses both antenna inputs and outputs, but also all 4 external Switch Contol Pins.

Lets follow the PCB

billakoss
DD-WRT Novice


Joined: 07 Aug 2014
Posts: 7

PostPosted: Thu Nov 13, 2014 18:19    Post subject: back to stock Reply with quote
hi
i have 7210n tp link and i put dd wrt from 3020 but now i cant back to stock..
i read for trim with hex editor but without success.
thanks
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