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Siglent .ads firmware file format
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janekivi:
Replacing the shadow file wasn't very hard to do so let's test this method

SDS1004X-E_OSV1_EN_eevblog.zip
tv84:
[000A09D6-000A0AAC]  CRC32: F48E57F1  DecompSize: 000000F9  ADLER32: 91C34AE7 - ZLIB_ADLER32_OK

You did a binary replacement?

Edit: It seems you did. That should do the job! :)

New one:
[000A09D6-000A0AAC]  CRC32: C7E44B26  DecompSize: 000000F9  ADLER32: 9A234C07 - ZLIB_ADLER32_OK
ian.ameline:

--- Quote from: janekivi on June 13, 2018, 05:28:26 pm ---Replacing the shadow file wasn't very hard to do so let's test this method

SDS1004X-E_OSV1_EN_eevblog.zip

--- End quote ---

Ok -- that copied over to the scope and boots up!
And I can log in as root via telnet!

Let the exploring begin...
ian.ameline:
It's pretty interesting -- with cursors on, fft active with 1mpts, and measure all active, and the web interface going, you can saturate both CPUs on the machine... (load Avg of 1.94 in top)
But with just viewing a waveform, it's very lightly loaded -- under 5%.

Even with those features activated, it's using around 52% of the cpu RAM. (256Meg)



markus_jlrb:
Dears,

fantastic news, would be a big fafor if you could do this for the sds2204X model fw too.
I'm working on this too since few days but my learning process is still evolving with small
progress.

I follow your descriptions concerning the reverse of the binary fw file and now working on
the extraction of the ziped parts to extract the shadow file in order to find the root pw.

But your progress is more effective und leads perhaps faster to a fw mod.
Is it true that the telnet daemon had first to be activated in order to be able to use it or dose
he run continuously. Nmap did not show the port 23 active in my device.

By the way I'm also interested in a mod fw file for the sdg6022x iq generator.

Any help that brings me closer to my goal of option activation is apreciated.

Many thanks in advance for your help.

Markus

 
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