The DM View is great for getting a quick look at what’s going on, on the mobile device itself, without needing a PC. Luckily all this info can be found in the Pcap. Interesting the actual nitty-gritty parameters in the SIP headers are missing, replaced with X for anything “private” or identifiable. ![]() Viewing SIP Messaging directly from the handset Tapping on the SIP messages expands them and allows you to see the contents of the SIP messages. This shows the SIP / IMS Messaging and the current signal strength parameters (used to determine which RAN type to use (Ie falling back from VoLTE to UMTS / Circuit Switched when the LTE signal strength drops). Once you’ve entered the code and successfully unlocked the IMS Debugging tool there’s a few really cool features in the hamburger menu in the top right. Luckily this authentication happens client side, which means we can work out the password it’s expecting.įor those interested I’ve done a write up of how I reversed the password validation algorithm to take the key given in the OTP challenge and generate a valid response.įor those who just want to unlock these features you can click here to run the tool that generates the response. These options are not available in the commercial version of the OS and need to be unlocked with a one time key generated by a tool Samsung for unlocking engineering firmware on handsets. Tapping on them asks for a one-time password and has a challenge key. ![]() Samsung share information about this app publicly on their website,īut for private LTE operators, the two most interesting options are by far the TCPDUMP START option and IMS Logger, but both are grayed out. Samsung handsets have a feature built in to allow debugging from the handset, called Sysdump.Įntering *#9900# from the Dialing Screen will bring up the Sysdump App, from here you can dump logs from the device, and run a variety of debugging procedures.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |