Theoryshare - The Broadband Experts

Modifying the firmware via the serial cable method

1.   Firstly make sure you’re modem requires using this method ,

as certain firmware can be changed using sbRider  in the cable modification kit

obtainable in the Download section of  www.theoryshare.com .

2.   Secondly you will require something like this:

it is called a Max233 serial adapter, you can either buy one online or make it yourself

(you had better be good at soldering). I am not going to list the parts needed as

everyone should have a search engine on there computers,

(Don’t be lazy, do some research).

Alternatively you can purchase a premade Theoryshare TTL Kit from the Theoryshare Online Store.

3.   Now once you have the above mentioned item you are going to need the

respective

vxWorks.st file for your modem (sb4100 or sb4200). This is also available in

the cable modification kit.

4.    The pins for the max233 are as follows PIN 1: TX

 PIN 2: RX

 PIN 3: POWER (-)

 PIN 4: POWER (+)   from left to right

5.   These pins will attach to the following points on your modem :

Sb4100:

SB4200:

6.   You will also need a program called Boot.exe, which you can find here:

http://www.tcniso.net/Nav/Tutorials/EthernetBoot/FB_Partial_0B.rar ,

once you have the program Boot.exe you have to make a folder name it what ever

you like and copy boot.exe and the relevant copy of the vxWorks.st file into this

folder.

7.   Open HyperTerminal on your computer and create a new connection name it

anything

now in the settings you should set your bit rate to 38400 the rest remains the same

, save this connection.

8.   Go to the network connections on your computer and change the settings to this :    

9.   Now make sure your coax cable is not connected to the modem, connect the

max233, double click on the boot.exe icon in the folder you created,

it should say the date and time and boot server started. Now open hyper terminal

and then connect your power cable, you will see hyper terminal start to read the

modem,

quickly press 2 on your keyboard to stop the boot process.

10. On the top of hyper terminal it says transfer ,click on that and then click on

send a text file  insert this :

2 enetBcm(0,0)admin:/opt/vwMIPS_1_0_1_fcs/target/config/sb4200/vxWorks.st h=192.168.100.10 e=192.168.100.1 u=jmcqueen pw=rickey7 f=0x8 tn=SB4200 o=bs1

save this in word pad first .

11. Just alter the modem references depending on the modem ,

if it’s a sb4100 just change it and save it again

12.Once that has been done you should see something like this :    

13. Now go to 192.168.100.1 and you should see something like this :  

14.                     The rest kind of explains itself …..Enjoy

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