Some older/all (?) firmware had BUG: in sleep mode after 28.02 change date change always to 1.03 (not to 29.02 in non-leap-years). Date must be set manually then.

V4.15:

(V4.02) In clock application, home contry 'United Kingdom' is shown completely. 
(V4.02) Careline numbers updated. 
(V4.02) Apostrofe to Finnish keyboard. 
(V4.02) Numbers in French keyboard. 
(V4.02) Home country list changed. 
(V4.02) Internet access improvements in some IAPs. 
(V4.02) Print settings improvements in image printing. 
(V4.02) Composed tunes can be sent via SMS also if contact selected from SIM. 
(V4.02) WWW performance improvements. 
(V4.02) Keyboard scanning times adjusted. 
(V4.02) BIOS v2.22 

V5.01 08-06-99

• Improvements for audio in car kit use. 
• Backlight is deactivated when locked device is removed from cradle. 
• Empty list situation, in list of own numbers-application, now handled correctly. 

• Perbaikan untuk membuka email yang sudah didelete secara lokal
• Call masuk tidak berbunyi di PDA setelah reboot
• Perbaikan di bagian contact sehingga bisa menampung banyak nomor telephone, sebelumnya bisa jadi hang
• PDA bisa dikunci tanpa password
• Autolock UNtuk interval "1 minute" and "2 minutes" tidak bekerja
• PIN di SIM hanya ditanyakan pada telephone di bagian luar tidak di PDA
• PIN Code diminta 2 kali
• Aplikasi SMS langsung ditutup setelah mengirim SMS sebagai reply
• Layar tidak menjadi blank ketika autolock aktif
• Call masuk tanpa nomor ringtone yang dimainkan hanya Nokia Tune
• Proses restore berhenti ketika ada call masuk.

• Device reset improved (In some cases device did not restart when battery was removed)
• Network tone routing improved (When PDA cover was open, all network tones were not routed correctly to Hands Free Speaker)
• The User Busy (Engaged) Tone playtime changed (When a call is made to busy number User Busy Tone playtime is longer)
• Java Telephone API tests improved
• SMS alphanumeric address improvement (SMS message sender name is shown correctly also when name is used as sender instead of number)
• PDA Telephone displays call even phone is idle (PDA display was sometimes showing call active even though call ended from phone side)
• Timer improved (Ocassionally jamming in games reduced by improved timers)

• General stability improvements 
• SIM card detection improvement 
• Call costs management improvement 
• PIN code request handling improvement 
• Volume control was not working in CMT if you got "missed calls" when answering a call 
• Call register (recent calls) functionality improved and lists length reduced 
• Device lock functionality improvement 
• When Clock alarm was deactivated on PDA side, CMT light was not switched off 
• Deactivation of keypad lock produces squares to screen
• Receiving and saving cl@ss 0 messages improvement
• Messages were able to sent to number in Tel field (not only Tel GSM) 
• Memory management improvement 
• Clock Time management improvement 
• Keypad lock functionality improvement 
• Power reset management improvement 
• Speed dialling functionality improvement 
• Call divert indicator behaviour improvement 
• Ringing tone functionality improvement 
• Charging functionality improvement 
• SIM lock functionality improvement 
• Formatting + application installation behaviour improvement 
• ALS: Activating/Deactivating call waiting for Line2 correction 
• Backup restore functionality to/from memory card improvement 
• World clock time zones updated 
• FDN location numbers modified 
• Spanish version: Event entries can now be cleared from log 
• Now all stored numbers on SIM card are displayed 
• UI texts (incl. Notes and error messages and help texts) updated 
• Incoming SMS with sender number is now displayed correctly 
• Voice mailbox list functionality improvement 
• Line Selection functionality improvement 
• Turkish special character conversion in Mail sending improvement 
• Copy message centre number from SIM improvement 
• Self made profile functionality improvement (in some situations you were not able to activate or delete self made profile) 
• Nokia Tune is not played in Meeting profile anymore 
• 'Conference commands' button not anymore dimmed when calling to busy number 
• Phone number max length set now correctly when response is received from SIM 
• WAP: Image loading improvement 
• WWW: default value for "Empty history on exit" changed to "Yes" 
• WAP Browser accepts now also source port 66 
• Printing: Page setup improvement 
• Functionality of short message with alphanumeric address in From field improvement 
• WAP mail functionality improvement 
• SMS functionality improved (includes several minor improvements e.g. Reading SIM messages, deleting concatenated SMS handled better, SMS sending from outbox etc.) 
• Web: In some situations the file download was done twice, now it is done only once 
• WAP OTA message settings can now be saved 
• WAP: Prefix "https://" URL handling improvement 
• Calendar booking functionality improved 
• Character conversion between GSM alphabet and Unicode improvement 
• Email: Move and copy & some other functionality in IMAP remote mailbox improvement 
• PPP call-back idle timeout is increased 
• Word Processor does not save unnecessary extra empty document anymore 
• Memory handling improvement 
• WAP OTA Setting Home page is now using the correct access point 
• Creating folders in remote IMAP4 inbox is now possible 
• The maximum size per message field is not applicable, when "Get mail" is defined to fetch "message titles and stay online". The option is now dimmed in this situation 
• WAP: Scandinavian character support in WAP mail sending improvement 
• WEB/PPP: Authentication to PPP-servers improved
• Mail: .html attachment handling improvement 
• Calendar: Alarms adjusted now correctly when changing from set time "No" to set time "Yes" 
• Ending of data call handling improvement 

This release requires also that the memory card application software be updated, before using the 9210 with the new MCU software upgrade. 

You should not use older sw version applications (3.18, 3.54 or 3.62) from the sales package CD-ROM. 

These old application versions will not work correctly with this new 4.13 SW version and you should delete any old backup that you might have in your PC, and not restore to the updated 9210 as this will effectively "downgrade" the memory card applications. 

You should also make a new backup of the upgraded 9210 device, and upgraded memory card to the PC. 

All_memory_card_data.SIS file and the new version of PC Suite V1.20 is also available from Forum Nokia web page http://www.forum.nokia.com