I do allot of Cellular unlocking and recently mistyped a code that brought up a rather interesting menu.
Just as you dial a phone number, Dial “*#745#” (Without the quotation marks :P).
This will bring up a “Sec_Ril_Dump” Menu with the following options (These may change depending on the model of the device):
Ejecutar Ril Log
View RIL Log
Clear RIL Log
Device Storage Information
Save IPC Log
Save IPC Bin
Copy to sdcard
Start RIL log
Generate random wifi mac address
I have yet to play around with any of these settings, if you decide to do so (AT YOUR OWN RISK) please post your results below 🙂