The following screen
shots and text were put together by
This guide will allow you to easily unlock
terminal locked modems that stop at 3348 in
HyperTerminal. Objective is to downgrade the
firmware on the Flash to pre-updated non-terminal
locked. Thus allowing us access to CM> prompt.
After following this guide you need to follow the
modem tutorial as usual. I advise not putting the
modem on stream whilst you do this, it is not
needed and will avoid it updating again.
Things you're going to
" Max232 cable and
" Copy of image1.bin
" Solarwinds Tftp
First step is to run the Solarwinds setup file
SolarWinds-TFTP-Server.exe. Just click Yes >
Next > Yes when asked, Tftp server will
Next we need to configure our PC Ethernet card
for connection with modem, goto:
Start > Settings >
Then Select Network Connections.
Right click on local area connection and click
properties. In the white box you need to click on
Internet Protocol (TCP/IP) then click
Information needs to be as below:
Setting up the locked modem
Now, it's time to connect your modem. You need
to plug in Ethernet cable to you PC and MAX232
adapter to your pc serial card. Don't power the
modem up just yet.
First you need to load HyperTerminal and open a
connection to com port as usual.
Now, plug your modem in but be ready to push P
Enter '1', '2', or 'p'
within 2 seconds or take default...
Shortly, after powering up.
If Successful you will see Board IP Address
Here you need to type 192.168.100.1 then press
IP mask press enter
IP gateway press enter
Mac address press enter
Internal/External press I
It will now say if successful
Init EMAC, DMA, and MII PHY...
Autonegotiation started, waiting for
MAC setup for FullDuplex
Then, Display Main Menu.
Here press D to download the image and save to
flash. It will ask for server and file details.
TFTP Get Selected
Board TFTP Server IP Address
Now we need to start the TFTP server.
First we need to copy the pre-updated image
image1.bin to your c:\ root.
This is included with the Tutorial. Just extract
to c:\ with Winrar.
To load TFTP Server Click
You need to make sure that any firewall
applications you are running don't stop the TFTP
server connecting. It's best to close them whilst
running this tutorial to avoid problems.
Click File > Configure you will be produced
with the screen shown above.
Make sure C:\ is selected as above and that
image1.bin is listed.
Click OK to save. There is no need to change any
You should also note the IP address is correct
in the status bar of TFTP Server.
Back in HyperTerminal we can now enter our TFTP
details as below.
Board TFTP Server IP Address [0.0.0.0]:
Enter TFTP filename : image1.bin
If all is good it will display:
Free store: a0300000
Starting TFTP of image1.bin from
Getting image1.bin using octet mode
This is now copying to the modem. When complete
it will say if successful:
0 = bootloader
1/2 = CM image
3 = specify flash sector
(0-3): Here press 1 to save to Image
1 on the modem.
Stored 906916 bytes
Verified 906916 bytes
If asked Store parameters to flash ? [n]
You will now be displayed with the main menu
again. Press B to reboot the modem and load from
If all goes well the modem will reboot. If all
has gone well you should see the modem scanning for
Congratulations you've done it.
Now be sure to do the MaxDloadTries = 0 fix
before connecting to the cable stream. Just follow
the modem tutorial as normal.
You also need to be sure to change you PC's
Ethernet IP configuration back to DHCP (Obtain IP
address automatically) before connecting to the
Please note that, both of these methods will
only restore your modem back to, it's original
state, this combined with the "no update" mod
should keep your modem in a pre updated state.