Latest firmware version is 5.27. This is the changelog:
Changes/improvements made v4.09.1 to v5.27.0
Java
- User Agent added to Http Post command
- URL encoding in GET JAR disabled
- Java application download to MMC
- DRM files visible in application manager
- Improvements in java downloading through WAP
- Improvements in COD and DRM downloading
Browser
- Cookie load/unload case in browser UI corrected
- Corrections in browser to present operator wap pages correctly
- Application stability improved when starting streaming via browser
- Support for php link
Messaging
- WBMP supported in MMS
- MMS presentation improvements
- MMS forward with SMIL presentation
- Animated GIF
- Two slide MMS with image and video clip
- Jpeg support in email
- RFM ringing tones added to the list of not forwardable ringing tones
- SMS case in Chinese variant corrected
Bluetooth
- Interoperability improvements with PDA devices
- Security improvements against hackers in SDP services
- Stability with carkit connection improved
Networking
- HTTP transmission optimization
Streaming
- Streaming connection handling inprovements
Accessories
- Ringtones and warning tones routed to both Bluetooth accessories and integrated handsfree in terminal side
- Ringing tone improvements when using HDB-5 and HS-3W headsets
Languages/variants
- Video Recorder default file name changed to English in Arabic and Hebrew variants
- Automatic language feature support more languages
- Camera help text updated in Chinese variants
Other changes
- Speed of opening phonebook application improved when phonebook contains lot of entries
- Speed of opening calender application is improved when calender contains a lot of notes
- Power consumption decreased when terminal is in screen saver mode
- Power consumption decreased when bluetooth accessory connected
- Ringtone loudness increased when vibra is on to the same level than when vibra is off
- RMF format added to Closed Content List
