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Topic: Parameters of TP-LINK MR11U

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TP-LINK recently released a new router named MR11U. Does anyone know the detailed parameters of this device, such as CPU/NIC/flash/RAM?

I'm just wondering whether MR11U is able to run OpenWrt. Is there anyone that is working on it?

Thanks, maurer! But what about the flash/RAM? WR702N seems to have AR9331 as well, but it only has 2MB flash and 16MB RAM which are not capable to run OpenWrt.

So I'm curious whether MR11U is based on WR702N or WR703N.

maurer wrote:

check the pictures http://bbs.mydigit.cn/read.php?tid=334500 - it need registration
i was lazy to make an account on that site

Hello, the chips are:

RAM is:
Zentel
A3S56D40FTP - G5

CPU/NIC is:
ATHEROS
AR9331-AL1A
PBT198.006C
1133
KOREA

flash is:
SPANSION
FL032PIF

Is this information enough to decide the capacity of flash/RAM? I mean I don't quite know the datasheet of Zentel and Spansion. Thanks~

Does this have serial pads?

Also this is the pic (pls mirror it before they block it..)

http://img.mydigit.net/Mon_1111/88_8972 … 2918bf.jpg

but the RAM is covered with a sticker, how can it be known to be Zentel A3S56D40FTP - G5

Also where is the flash? I can't see it in the pic (SPANSION FL032PIF)

Closeup http://img.mydigit.net/Mon_1111/88_8972 … 85df91.jpg

Battery side PCB http://img.mydigit.net/Mon_1111/88_8972 … db9bf0.jpg

Battery (how to buy this?)  http://img.mydigit.net/Mon_1111/88_8972 … 4d4436.jpg

pls mirror the pics asap

pls make wiki entry for this modem

has anyone brought it in North America?

(Last edited by kocoman on 16 Dec 2011, 07:47)

good news, mr11u is openwrt compatible. i've just flashed OP on it by modifying the firmware header. it works just perfectly as 703N except for that Wireless LED and another LED indicators are not working. for purchase,http://www.volumerates.com/product/tp-link-tl-mr11u-pocketable-11n-150m-3g-mobile-wireless-broadband-router-with-built-in-lithium-battery--white-101760

kocoman wrote:

Does this have serial pads?

Also this is the pic (pls mirror it before they block it..)

http://img.mydigit.net/Mon_1111/88_8972 … 2918bf.jpg

but the RAM is covered with a sticker, how can it be known to be Zentel A3S56D40FTP - G5

Also where is the flash? I can't see it in the pic (SPANSION FL032PIF)

Closeup http://img.mydigit.net/Mon_1111/88_8972 … 85df91.jpg

Battery side PCB http://img.mydigit.net/Mon_1111/88_8972 … db9bf0.jpg

Battery (how to buy this?)  http://img.mydigit.net/Mon_1111/88_8972 … 4d4436.jpg

pls mirror the pics asap

pls make wiki entry for this modem

has anyone brought it in North America?

Sure it has serail pads, its the four holes you see in one of the pictures under the TP-LINK text. It also has the same type of memory as my 703N, which I'll hardmod to 64MB. I have a sourced so-dimm here with Hynix HY5DU121622CTP-D43 chips on it, so I might as well mod both. Ordered.

VRS wrote:

good news, mr11u is openwrt compatible. i've just flashed OP on it by modifying the firmware header. it works just perfectly as 703N except for that Wireless LED and another LED indicators are not working. for purchase,http://www.volumerates.com/product/tp-link-tl-mr11u-pocketable-11n-150m-3g-mobile-wireless-broadband-router-with-built-in-lithium-battery--white-101760

Thanks, VRS. Really good news. However, AFAIK, TP-LINK hasn't released the official firmware for it. How can I backup the original firmware on it in case the flashed openwrt doesn't work?

BTW, did you modify the header of firmware of WR703N? Could you plz tell me how to do that? It's better if you could tell me what bytes to change rather than prewritten tools. Thanks!

Does this have problem powering some USB dongles like the 703?

ok, here is how it went. I uploaded VRS mr11u.bin firmware. The unit appeared unresponsive after flash. I tried the static IP assignment i.e assume that 192.168.1.1 for MRU11/openwrt and 192.168.1.2 for my laptop. Restart the device. Initiated ping from laptop to MRU11. after few seconds restart period, the unit responded to the ping request for about 25 seconds. After this period there was no response. I used wireshark (network analyzer) to see what is going on. Upon restart I saw that the MRU11 unit sends PPPOED PADI packets. I was trying to see if I could reflash it using tftp, but here I see the unit trying to do the PPPOE thingy. Did some research found that the tftp may not work till we have good wan. So far so good. Next I tried the reset button to see if I could boot into safe mode. Tried that and I was able to telnet into the device. Looked at /etc/config/network. the wan and wan1 interfaces are set for pppoe with user/pass test/test. Mounted jffs using mount_root. Seems like not enough space for jffs. I get the following messages from mount_root.

/sbin/mount_root: line 1: pi_include: not found
/sbin/mount_root: line 1: pi_include: not found
/sbin/mount_root: line 1: set_jffs_mp: not found
/sbin/mount_root: line 1: determine_root_device: not found
/sbin/mount_root: line 1: can't create /.extroot.md5sum: Read-only file system
switching to jffs2

if I try df after mount_root, this is what I get.

root@(none):/rom/etc# df
Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                     448       220       228  49% /
/dev/root                 2816      2816         0 100% /rom
tmpfs                    14744        16     14728   0% /tmp
tmpfs                      512         0       512   0% /dev
/dev/mtdblock3             448       220       228  49% /overlay
overlayfs:/overlay         448       220       228  49% /

I check against my 703n for comparison, this is what 703n shows.

root@(none):/# df
Filesystem           1K-blocks      Used Available Use% Mounted on
rootfs                    1536       356      1180  23% /
/dev/root                 1536      1536         0 100% /rom
tmpfs                    14720        12     14708   0% /tmp
tmpfs                      512         0       512   0% /dev
/dev/mtdblock3            1536       356      1180  23% /overlay
overlayfs:/overlay        1536       356      1180  23% /

I suppose the image file is too big or some thing ? So it boils down to I need to compile my own image. I have the toolchains installed. I will try to download the source files. I will use 703n as my base. The question is what do I need to change ? I suppose some signature or hardware id ? if any one can guide me, I will appreciate it.

(Last edited by ron on 3 Jan 2012, 07:59)

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