Maxon

*#9922# - menu, reset (without SIM)
*#9900# - Software Version
*#9901# - Software Version (PBatch)




S60 Siries (SX1, 6600, N-Gage..)
*#7780# - factory default
*#7370# - full factory defaults (all user data reset)
SX1 formating - * + # + power on
6600 formating - 3 + * + send + power on
Sendo X1 formating - 5 + power on