Linksys E1000 v2.1

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multiple revisions of this device, use caution
bgn (N300)
Wireless-N Router
Linksys E1000 001.jpg
Support
Wikipedia
WikiDevi.wi-cat.ru
3rd Party Firmware
dd-wrt
OpenWrt
Incompatible
Tomato any flavor
Gargoyle
Status Unknown
Platform
BrandModelRev
Linksys E1000 v2.1
Serial number prefix
CNV2
FCC ID
IC ID
Type
wireless router
Series
E1000
CPU1
Broadcom BCM5357B0
CPU1 Type
MIPS 74K
CPU1 Speed
300 MHz
Flash1 Chip
Brand? Model?
Flash1 Size
4 MiB4,194,304 B <br />32,768 Kib <br />4,096 KiB <br />32 Mib <br />0.00391 GiB <br /> (Serial)
RAM1 Size
32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br />
RAM1 Chip
Brand? Model?
ETH chip1
Broadcom BCM5357B0
Switch
Broadcom BCM5357B0
Ethernet Port Count
1-100MbE-WAN
4-100MbE-LAN
Wired Standard
IEEE 802.3i/3u

802dot11 OUI: C0:C1:C0 (12 E, 14 W)
Ethernet OUI: C0:C1:C0 (12 E, 14 W)

Expansion IF types
none specified
Power
12 VDC, 0.5 A
Connector type
barrel
Serial Port (UART)
yes
JTAG Port
yes
Other

Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 1311 additional devices
of which 153 are Linksys devices
Default login user: blank
Default login password: admin
blank:admin credentials used by 267 additional devices
of which 134 are Linksys devices

Manuf/OEM/ODM
3rd Party Firmware Support
Retail
FCC approval date 13 September 2010
Country of manuf China
Physical
Dimensions
7.95" x 1.34" x 6.3" (202 x 34 x 160 mm)
Radio 1
Chip1
Broadcom BCM5357B0
Wireless interface OUI
C0:C1:C0
Antenna Connector Type
none specified
MIMO status
2x2:2
Wireless Standard
IEEE 802.11b/g/n
802.11n
up to 300 Mbps
802.11g
up to 54 Mbps
802.11b
up to 11 Mbps
WiFi Operating Frequency
2.4 GHz
 CPU1 brandRadio1 chip1 brandRadio1 chip2 brand
Linksys E1000 v1BroadcomBroadcom
Linksys E1000 v2.0BroadcomBroadcom
Linksys E1000 v2.1BroadcomBroadcom

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

For a list of all currently documented Linksys device with specifications, see Linksys.

300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Overview

E1000 v2.1 serial numbers appear to start with CNV2.

"3763-11200701R" is silkscreened on the board in the FCC photos.

Listed on the 'Linksys routers' page on Wikipedia

The default SSID is probably CiscoXXXXX where XXXXX is the last 5 digits of the serial number. If the device has been configured with Cisco Connect the device will probably have a randomly generated SSID.

Supported by K26RT-N builds of Tomato by Shibby.

Links of Interest

Flashing

Flashing dd-wrt

Supported by dd-wrt as of = 16968

Please enter flashing instrustions here

Flashing Tomato

Please enter flashing instrustions here

JTAG-Serial Info

Serial

Serial Pinouts

alt text

This image contains the pin outs for the E1000 v2.0 version, however
these pin outs are identical to the v2.1 version of the Linksys E1000 v2.1
Router.

Serial Recovery

Serial Interfaces

You need a level shifting 3.3v TTL adapter. You can get Nokia CA-42
cables online for about 3.00 and cut the phone end off. Then you have to
figure out what each wire does. You need only grd, tx and rx connected
properly for the serial interface to work.

When I plugged it into my XP rig...the cable was not recognized and no
drivers found during the PnP process.

I downloaded a utility determining the attached hardware (UVCViewer)
http://www.users.on.net/~fzabkar/USB_IDs/UVCView.x86.exe

Then downloaded the Prolific Driver from here
http://www.prolific.com.tw

So...

Orange = GND Blue = Rx Red = Tx

Once loaded and connected...my laptop sees the unit attached to COM8....
configured Putty....and all is well.

LOM stated:

No there is no fixed standard for the colors of the wires and obviously
not on the number of wires either. My first CA-42 had 3 wires and the
ones I bought later had 5, the picture in my post above is from one of
those. You can carefully remove the plastic molding of the phone connector
and see where each wire is going and find out which color the respective
signals are on. Schematic of the Nokia phone connector here:
http://www.hardwarebook.info/Pop-Port

strfr stated: The "level shifting 3.3v TTL adapter" is must, you can't
connect router straight to standard RS232 serial interface. Learned after
hours of trying.. ;] Cheap CA-42 is all right, even the Chinese clone
with ARK3116 chip thus you will not find proper driver for Win7 64bit
system. Windows XP mode is the solutions in such a case.

Serial Commands

Erase Nvram

Power cycle the router and while it is booting hit control C quickly just
as your router starts You should get a CFE> prompt


The most common command you will use is the "nvram erase" command. This
command will erase the nvram values that are often the cause of bricked
routers

At the cfe prompt:

cfe> nvram erase [enter]

To flash the firmware

This assumes you have a ttl adapter connected and ready to go. There is
reference to stock firmware. This does not apply to router that used to
run vxworks. All of those, have jtag tmk..

connect that bitch (the router to your serial adapter).. 115200,8,1,n and
no flow control are the com, param's

I use hyperterminal. In the terminal, boot the router.

Immediately start hitting ctrl-c. If you hit it right you will be at the
cfe prompt:

cfe>

Execute the nvram erase command at the CFE prompt

Get the tftp utility ready to flash the STOCK firmware for your router so
all you need to do is hit enter to launch.

You are going to tell the router to accept a tftp flash of firmware. It
times out quickly so that is why you need to get the utility ready to
launch.

Static ip on your rig.. 192.168.1.10, mask 255.255.255.0, not necessary but
gateway 192.168.1.1

At the cfe prompt:

flash -ctheader : flash1.trx

hit enter.. the router will want an upload of the firmware. It will time
out after three tries. Don't let it time out, now launch the tftp utility.
It will upload, program and then you will be back at the cfe prompt. This
will take some time. You will see what is happening in the console.

You will be back at the cfe prompt when it is done:

cfe>

issue a "go" command:

go [enter]

the router will launch its new firmware.

Let it boot. It will boot 2 ~ 3 times.. You are done.

Now install some custom firmware again.

Good Luck..

Pictures

Retail Images
FCCID Q87-E1000V21

Notes

root@DD-WRT:/# cat /proc/cpuinfo
system type : Broadcom BCM5357 chip rev 1
processor : 0
cpu model : MIPS 74K V4.9
BogoMIPS : 149.91
wait instruction : no
microsecond timers : yes
tlb_entries : 64
extra interrupt vector : no
hardware watchpoint : yes
ASEs implemented : mips16 dsp
shadow register sets : 1
VCED exceptions : not available
VCEI exceptions : not available