riguardo l'aggiornamento tramite NSU:
è questo il change log: (trovato su internet)

Fixed issues in this SW releases:
-DM settings aren’t generated automatically, when Email settings are defined in variant
-Audio: Phone resets when plugging-unplugging headset for several times during music playback
-Video call: White or black screen flashes when power saver time-out expires during an active video call
-3D Ringing tone is too low, almost nothing cannot be heard during MT voice call
-Illumination with Voice call: During an active voice call, power saver displays when power saver time-out expires and then phone goes to sleep mode while the call is still ongoing
-Image Quality improvements

System stability and performance improvements:
-Device slows down when large numbers of pictures are transferred to the device
-Slow to open the Reply screen for an SMS
-ViewServ12 crashes under high CPU load
-Phone jams or resets when taking photo during low power audio playback
-Phone freezes after a new SMS is received during Visual Radio playback
-Other error fixes related to general system stability improvements