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Learning the hex of an SMS on a series 40 Nokia PM Read

 
General (Technical, Procedural, Software, Hardware etc.)
Last Post by jaclaz 10 years ago
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 scodzilla
(@scodzilla)
New Member
Joined: 10 years ago
Posts: 3
Topic starter 30/06/2015 10:06 pm  

Hi,

I'm trying to learn about the hex of series 40 Nokia's after they've been used with a flasher box. I'm looking at SMS's right now and I have managed to discover where the actual text would start, and I think that I have found that the octet before is shows the length of the message.

Can somebody please help me with making sense of the rest of the bytes?

Thanks!


   
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jaclaz
 jaclaz
(@jaclaz)
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Joined: 18 years ago
Posts: 5133
30/06/2015 11:41 pm  

Can you post an example of the actual data?

I believe it may be PDU/7 bit or PDU/UCS2, see if this is what you are looking for
http//www.smartposition.nl/resources/sms_pdu.html
http//smspdu.benjaminerhart.com/
http//rednaxela.net/pdu.php
http//sandersonforensics.com/forum/content.php?119-RevEnge

jaclaz


   
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 trewmte
(@trewmte)
Noble Member
Joined: 19 years ago
Posts: 1877
01/07/2015 12:25 am  

To add to Jaclaz's list but if you do not wish to use online decoder

PDUSpy
http//www.nobbi.com/pduspy.html


   
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jaclaz
 jaclaz
(@jaclaz)
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Joined: 18 years ago
Posts: 5133
01/07/2015 12:51 am  

Also maybe interesting, specific format of an (earlier) Nokia 6021
http//www.mislan.com/SSDDFJ/papers/SSDDFJ_V4_1_Marryat_Corcoran.pdf

and this should be a (largely incomplete) analysis of the S40 SMS format
http//wammu.eu/docs/manual/protocol/nokia-s40-sms.html
http//gammu.readthedocs.org/en/latest/protocol/nokia-s40-sms.html

jaclaz


   
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