OpenWrt Forum Archive

Topic: tenda w308r brick after update firmware

The content of this topic has been archived on 5 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

I connect rx,tx and gnd to the usb com port and open putty and tenda say me :


CFE version 5.100.138.3 based on BBP 1.0.37 for BCM947XX (32bit,SP,LE)
Build Date: 2011-05-26 10:33:50 4 (richard@aeteam.com)
Copyright (C) 2000-2008 Broadcom Corporation.
Init Arena
Init Devs.
Boot partition size = 131072(0x20000)
Found an ST compatible serial flash with 32 64KB blocks; total size 2MB
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 5.100.138.3
CPU type 0x19749: 300MHz
Tot mem: 16384 KBytes
CFE mem:    0x80700000 - 0x80798550 (623952)
Data:       0x8072E3A0 - 0x807315C0 (12832)
BSS:        0x807315C0 - 0x80732550 (3984)
Heap:       0x80732550 - 0x80796550 (409600)
Stack:      0x80796550 - 0x80798550 (8192)
Text:       0x80700000 - 0x8072E39C (189340)
Device eth0:  hwaddr C8-3A-35-49-DA-E8, ipaddr 192.168.0.1, mask 255.255.255.0
        gateway not set, nameserver not set
Loader:raw Filesys:raw Dev:flash0.os File: Options:(null)
Loading: ...... 2939824 bytes read
Entry at 0x80001000
Closing network.
Starting program at 0x80001000


Ctrl+c


CFE>HELP
Available commands:
show clocks         Show current values of the clocks.
nvram               NVRAM utility.
reboot              Reboot.
flash               Update a flash memory device
batch               Load a batch file into memory and execute it
go                  Verify and boot OS image.
boot                Load an executable file into memory and execute it
load                Load an executable file into memory without executing it
save                Save a region of memory to a remote file via TFTP
ping                Ping a remote IP host.
arp                 Display or modify the ARP Table
ifconfig            Configure the Ethernet interface
help                Obtain help for CFE commands
For more information about a command, enter 'help command-name'
*** command status = 0

I do not know how to load new firmware? Please help me to unbrick my router.

(Last edited by xover on 31 Mar 2013, 08:17)

The info you listed says this is a broadcom based router which uses CFE.

That means you can reflash the ROM via CFE.
So, find instructions to unbrick it via CFE

(Last edited by ericwongcm on 31 Mar 2013, 12:21)

xover wrote:

I found this. Can you tell me this step
Is it for my case or not?

http://www.dd-wrt.com/wiki/index.php/De … le_and_CFE

Possibly but I have reflash other broadcom CFE based router without using serial at all..
Usually, there is a way to boot into CFE by holding on to a button and then manually configure your computer IP address to 192.168.0.x or 192.168.1.x

And then point your browser to 192.168.0.1 or 192.168.1.1
And just upload the ROM there.

Read the other on Openwrt.org pages on how other use CFE on broadcom based routers.
You will see full instructions there without using serial.

one example is this router I was playing with, read the section on "OEM easy installation"
http://wiki.openwrt.org/toh/huawei/hg556a

(Last edited by ericwongcm on 3 Apr 2013, 10:13)

Hi, guys,

it is really possible to flash Tenda W308r to any OpenWRT firmware?

Thanks.

Can you please post pictures of the routers serial Pin out ! TY ^^

The discussion might have continued from here.