how to install a firmware with .p7 extension

[jofre]

Hi folks

So i decided to bring some old dead modems to life - magjack fried during a thunderstorm and i was not able to access 192.168.100.1

I managed to re-flash it, it's a sb5101, but my ethernet port is dead, so all I have left is the usb port - which will not work on x64 windows system - unless - it's newer firmware

So the question is: how can I update the firmware using a .p7 file?

I read there's a way to remove the header and rename it to .bin but I don't know how to do it

it needs to be SB5101-2.8.3.0-GA-01-455 or above

I flashed I virgin 2mb file before installing haxor

I have newer firmware files but I'm not sure how to proceed - the files are not 2mb in size (smaller), should I flash the firmware files OVER the 2mb virgin dump or can I flash the firmware and then haxor?!!



thank you

btw, one of the modems is really f**d up. I´m trying to hard debrick it, short circuiting with the 3.3v techinique but things are not pretty...all lights blinking at the same time any ideas? flash is not deteced on jtag

[andytg]

see screencast


upd.

   

on the upper image - eCos firmware (sb5101, dpc2100r2), the lower - vxWorks (sb5100, dpc2203 etc)

[Canis-Major]

Remove the following amount of bytes from the beginning of the file using any decent hex editor:

If Docsis: 1604 bytes
If Euro-Docsis: 1527 bytes

[jofre]

Thank you!

hey, andytg

AV detected some threats on your .exe file

[andytg]

Thank you!

hey, andytg

AV detected some threats on your .exe file

it is not my file, I found it on http://sysadmins.ru/topic247182-15.html

AVG did not find it any viruses

[jofre]

how should I flash all the files?

here's how I'm trying to do

1. flash the 2mb virgin file using ldram/program 9fc00000 200000

2. flash the newer firmware file over the the 2mb - is that right? - using again ldram/program 9fc00000 200000

3. flash haxor with ldram/program 9fc10000 130000

is that correct?

[Canis-Major]

Sysadmins was great until it got the ru domain.. open file with hex and match off with another scource, because I've never known a firmware to flag as virus

Malwarebytes is so commercial I believe even they would start deleting files most DONT need under the guise of 'POTENTIALLY' unwanted programs.. like anti virus's do with modem tools, bios tools etc..