GSM firmware hacking

Ian Stirling OpenMoko at
Mon Aug 11 15:50:33 CEST 2008

Sébastien Lorquet wrote:
> getting cell information is far from firmware hacking :)
> Many modems have (maybe undocumented) AT commands to get that info.
> For me, GSM hacking is putting hands in the low level code itself.

Not all the measurements that might be desirable are available from the
AT interface.

Also, stuff like requiring the chipset to retrain to a given tower - 
which many phones won't do over AT can be useful. (you cannot get range 
from a tower accurately without being logged into it)

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