Thilo-Alexander Ginkel <th...@ginkel.com> writes: > Turns out the challenge needs to be requested via --set-fcc-lock=0,0.
Right. Makes sense. > Still, I can't get a valid unlock. And those challenge input values are correct? The firware isn't expecting something other than 0,0? >> Is this problem the same with the official Lenovo unlock tool and >> scripts? >> > > Good question. The official beta tool does not even support my laptop model > - but I can convince it to run by bind-mounting a supported laptop's string > to /sys/class/dmi/id/product_family. > > Is there a way to capture the official tool's communication? AFAICS it is > using libmbim (?) for the modem communication by calling > mbim_message_intel_mutual_authentication_fcc_lock_set_new. > > Knowing a valid response for a given challenge would help validating the > hashing algorithm. If you can get the tool to use the proxy then you could simply inspect the proxy logs, I guess. See https://modemmanager.org/docs/modemmanager/debugging/#qmi-proxy-or-mbim-proxy-debug-logs Or you could hack the driver to printk the messages. Bjørn
