Theoryshare - The Broadband Experts

SB5100 Modification Written by Theoryshare – The Broadband Experts

http://www.theoryshare.com

Needed tools:

Soldering iron

10 pin header

Theoryshare Cable Modem Modification Software Package

JTAG Cable - Available in the Theoryshare Online Store

Visit the Building a JTAG cable for schematics on building a cable

Step 1: Open your modem

Using a t-10 torx screwdriver remove the single screw in the back of your SB5100. Once removed use a razor blade to cut through the informational sticker on the bottom of the modem.

Step 2: Solder your 10 pin header to the JTAG port on the modem. This is the most difficult part of the SB5100 modification, if done incorrectly there is a very good chance your modem can be damaged. After soldering feel free to remove the metal shield over the signal processor indicated by the yellow arrow.

Step 3: Connect your modem to power, connect Jtag cable to the modem header and to your computer.

Step 4: Open the Blackcat (SchwarzeKatze) software on your computer, when the software opens, it should detect your modem as shown here:

If your modem is not detected try reversing the Jtag cable, you will not damage the modem from simply connecting it the wrong way, but make sure it is correct before you attempt to program the unit in the next step.

Step 5: Program your SB5100

Go to the SB5100 tab in Blackcat, and program your new firmware as shown below:

Once this is complete be sure to install your bootloader on the SB5100 Tab

Step 6: Enjoy your modem should now have modified firmware installed. Visit http://192.168.100.1:1337 to utilize the new functionality. Look at other generic to tutorials for your new modified modem

Terms of Use:

THIS TUTORIAL IS INTENDED FOR THEORETICAL USE ONLY, USE ON PRODUCTION SYSTEMS MAY VIOLATE YOUR ISP's TERMS OF SERVICE. THEORYSHARE TAKES NO RESPONSIBILITY FOR YOUR ACTIONS. THIS SOF

TWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THIS SOFTWARE IS INTENDED FOR EDUCATIONAL USE ONLY AND MAY BE ILLEGAL IF USED IMPROPORLY. USERS ASSUME FULL RESPONSIBILITY FOR THEIR ACTIONS.