Provided only with the Japanese release of The Idolm@ster
Rumored changes relating to The Idolm@ster:
In-game PlayStation Store interface—it is said that The Idolm@ster is the first title that has this interface.[24]
Support for PlayStation Home rewards added—rumor spread from the false report by some websites that prizes in PlayStation Home resulted from player in-game accomplishments from The Idolm@ster.[25]
First "universal" firmware version for the original PSP-1000, PSP-2000 PSP Slim & Lite and PSP-3000 series
[PlayStation Network] has been added as a category on the XMB
[PlayStation Store] has been added under [PlayStation Network] menu
[Account Management] has been added under [PlayStation Network] menu
Sleep Timer Function for [Music]
[USB Auto-Connect] Feature added for PSP-1000 and PSP-2000 under [System Settings]
A new full-screen keyboard; press [Select] when the On-Screen Keyboard is displayed.
A new redesigned XMB Background [Original] added as an option under [Theme Settings]
A new video format is supported (MPEG-4 AVC (H.264) Video Main Profile (AVC CABAC) in 640 × 480 pixels)
[Title Display] feature added under [Video Settings]
Screen capture has been added as a feature within games and the internet browser (this is up to the game developer or the web site developer to support though).
PlayStation format software can now be output in full-screen size on a connected device, even if it doesn't have progressive input capability. Still PSP format software can only be output on devices that have progressive input capability.
Version 4
Version
Date Released
Description
4.21
Pre-installed Only First found on December 5, 2008
Only available pre-installed on the initial release of the black Rachet & Clank Entertainment Pack PSP-3000 series in North America and possibly some later production units of the Silver Rachet & Clank and Gran Turismo bundles in North America and other colors and regions worldwide.
Support for PlayStation Network titles has been expanded.
3.95
April 8, 2008
System Changes
Support for PlayStation Network titles has been expanded.
Downloaded PlayStation game controls can now be further customized.
The method for turning the PS3 off using [Remote Play] has been altered.
3.93
March 18, 2008
Network Changes
The Internet Radio feature has been expanded.
Skype feature has been added under Network. (Japanese version only)
3.90
January 29, 2008
System Changes
Support for PlayStation Network titles has been expanded.
Network Changes
Support for the Go!Messenger service (under [Network]). (European version only)[36][失效链接]
Skype feature has been added under Network. (Excluding Japanese version)
3.80
December 17, 2007
System Changes
Added ability to play PlayStation games from disc or hard drive via Remote Play with the PlayStation 3 system
Media Changes
Added new music visualization effect
Video scene search
One-segment broadcasting recordings (Japanese version only)
Network Changes
Streaming internet radio player
RSS now supports OPML and pictures
PlayStation Spot now available at BB Mobile Point (Japanese version only)
3.73
November 29, 2007
Initial release for a revision of the Slim & Lite with TA-085 v2 motherboard.
Disc Changes
Improved system stability by fixing problems where the UMD drive would occasionally suspend and then fail to reload data.
3.72
October 30, 2007
System Changes
Support for PlayStation Network titles expanded.
Remote Start now available under Remote Play. Remote Start requires a PlayStation 3 system with system software version 2.00.
3.71
September 13, 2007
System Changes
Revisions to strengthen security have been added.
Support for PlayStation Network titles expanded.
A correction has been made to the settings for some regions (i.e., the PlayStation Spot icon was removed for regions other than Japan)
3.70
September 11, 2007
First "universal" firmware version for both the original PSP-1000 and PSP-2000 PSP Slim & Lite series
Settings Changes
Custom themes
Support has been added for assigning buttons in [Remote Play]
Media Changes
A scene search feature has been added under [Video]
Sequential playback is now supported under [Video]
Simultaneous playback of content under [Music] and [Photo] is now supported
Video bitrate limit raised to 2Mbit/s from 768kbit/s
Network Changes
PlayStation Spot icon added under [Network] for regions other than Japan
3.60
Pre-installed Only First found on September 10, 2007
No update to this firmware was ever made available. This firmware was only available pre-installed on the initial release of the PSP Slim & Lite with TA-085 motherboard.
Settings Changes
UMD cache support
USB Charge option
Additional color themes for XMB
Media Changes
TV output added
Support for the 1-Seg Tuner (Japanese version only)
3.52
July 24, 2007
System Changes
Support for PlayStation Network titles expanded.
3.51
June 29, 2007
System Changes
Illuminati exploit has been patched.
3.50
May 31, 2007
System Changes
Allows Remote Play to be used via an internet connection.
CPU speed limit removed, allowing CPU to run at 333 MHz rather than 266 MHz.[37]
Network Changes
"RSS Channel Guide" has been added as a feature under "RSS Channel".[38]
3.40
April 20, 2007
System Changes
Support for PlayStation Network titles expanded.[来源请求].
"Certificate Utility" option erased. (Can still be accessed by pressing triangle on the selected game)
Saved data from PlayStation format software can be used on both PSP and PS3 systems.[39]
3.30
March 28, 2007
System Changes
"Wireless Hotspot" added (6 months of free T-Mobile Hotspot wireless internet access was added for US users)[40]
3.11
February 8, 2007
System Changes
Reset option for PlayStation Network games.
Network Changes
"Portable TV" menu under [Network]. (Japanese version only)[41]
3.10
January 30, 2007
Settings Changes
Dynamic normalizer.
Conserve memory option.
System Changes
Secret patching of sceRegOpenRegistry and GTA exploits.
Network Changes
[PlayStationSpot] menu under [Network]. (Japanese version only)
3.03
December 20, 2006
System Changes
Support for PlayStation Network titles expanded.
Support for PSP-300 camera.
Media Changes
Support for taking photos and videos using the camera.
First attempt at patching the 2.00-2.50 GTA exploit. Security update was later found not to work correctly in every version through 3.03 (Grand Theft Auto: Liberty City Stories exploit).
An overclock bug (or limit?) was introduced with this update preventing the CPU from going above 222mHz while WiFi is activated. This is a predictable and reproductive behavior where if the CPU is overclocked (such as 266-333) before activating wifi, the behavior is nullified until the next complete shutdown. This is still present in the latest firmware. This could have been an attempted limit by Sony to anticipate the lower voltage of the battery in the PSP-2000 to prevent drawing too much power at once.
2.50
October 13, 2005
Settings Changes
[Set via Internet] has been added to [Date and Time] in [Date & Time Settings].
[WPA-PSK (AES)] has been added as a security method under [Network Settings].
Media Changes
Copyright-protected video can now be played.
Network Changes
LocationFree Player added.
[Auto-Select] and [Unicode (UTF-8)] added to the browser.
Settings for [Text Size] and [Display Mode] and the input history of online forms accessed can now saved in the browser.
System Changes
Korean input mode has been added to the on-screen keyboard.
2.01
October 3, 2005
System Changes
Revisions to strengthen security have been added.
Security update to patch the original (first of 3) TIFF exploit.
2.00
September 1, 2005
Initial UK release (with included update disc)
Settings Changes
Korean has been added as a system language in [System Settings].
[Character Set] has been added in [System Settings].
[Theme Settings] has been added.
[Internet Browser Start Control] has been added as a security mode in [Security Settings].
WPA-PSK (TKIP) has been added as a security mode in [Network Settings].
Web address shortcut feature has been added as an input mode for the on-screen keyboard.
Media Changes
4:3 Screen Mode has been added (for video saved on Memory Stick Duo media).
Go To feature has been added (for UMDVIDEO and UMDMUSIC).
A-B Repeat feature has been added (for UMDVIDEO, UMDMUSIC and video saved on Memory Stick Duo media).
Audio options have been added (for video saved on Memory Stick Duo media).
MP4 (AVC) has been added as a playable file format (for video saved on Memory Stick Duo media).
The combination of SonicStage version 3.2 (or later) and PSP system software 2.00 (or later) has made it possible for music files in ATRAC3 plus format to be transferred to a Memory Stick PRO Duo
MP4 (the audio codec for MP4 format audio files is MPEG-4 AAC) and WAV (Linear PCM) have been added as playable file formats (for music saved on Memory Stick Duo media).
Wallpaper feature has been added.
Image transfer feature has been added.
TIFF, GIF, PNG and BMP have been added as viewable file formats.
Security added to detect TA-082 / TA-086 motherboards which have been downgraded to 1.50 and prevent upgrading to 3.30 or newer. Easily fixed by using IDstorage Key Cleaner.
Media Changes
Support for thumbnail images within RSS channel and in video folder.
MPEG-4/H.264 support for 720×480, 352×480, and 480×272 (native resolution).