MIUI ROM 2.4.20 Changelog

[System]

• Optimise the global action bar height
• Optimise Google apps, remove from system partition and allow for download from SuperMarket
• Optimisation to increase the long-press close application key triggering time (0.5 to 1.5 seconds)
• Fix Instagram incompatibility issues
• Fix problem connecting USB - dialogue box becomes frozen on screen to select yes / no mount storage
• Fix UCAM not compatible

[Phone]

• New Desktop phone icon to support display of missed call number
• Significantly improve telephone efficiency, including open speed, search efficiency and sliding fluency
• Optimise the display of the time field
• Fix ending call still shows the green 'return to call' bar
• Fix international number does not show the attribution or contact detail properly
• Fix in some cases the call operator under the phone does not display the operators name (Developer Edition only)
• Fix some SIM/RUIM cards cannot switch APNs
• Fix buffer overflow problems with Call log time causing Android Core FC

[Contacts]

• Optimise repeat number of details rules e.g. (IP prefix with and without number shown)
• Fix problem entering numbers containing ','s leads to FC
• Fix contact selector name, number of repeated questions
• Fix problem with group pictures

[Messaging]

• New single touch access to send group SMS messages
• Add new v4 SMS Interface
• Optimise fluency of the message lists when sliding
• Optimise the choice of regular text messaging time
• New support to save MMS attachment to SD card
• Optimisation of the new message pop-up window, touch screen area does not close the window
• Send contact vCard information is fixed
• Fix sending group SMS does not show sending progress
• Fix problems with access control, lock screen does not show the MMS preview
• Fix problems when restoring where duplication occurs
• Fix too many recipients draft saved SMS responses
• Removing SIM card does not display the "Save to SIM" card menu item
• Optimised efficiency when adding a large number of contacts to a message
• Session and list pages often do not display the time correctly for message details
• Fix problem with scheduled SMS cannot modify send time

[Themes]

• Optimise theme loading resource efficiency
• Fix problem where wallpaper cannot be backed up
• Fix problem in local theme details page, select local theme without "other@ modules
• Fix details page, clicking the menu button causes the screen to go black
• Fix application theme, lock screen style
• Fix Customised theme does not support module

[Camera]

• Fix some third-party cameras cannot record video in non-automatic scene mode

[Gallery]

• Optimise default load does not automatically generate album information
• Optimisation of automatically generated album information algorithm
• Fix some problems with hidden albums
• Fix vibration issues (tactile feedback) when in multiple choice editor mode
• Fix problem setting show hidden albums, the number of albums total displays errors
• Optimise the Album page to speed up photo details page and animation effects
• Fix USB hotplug frequently may lead to accidental deletion of files and other data
• Fix problem with list of pictures created by third-party applications in the last row are blocked from view
• Fix image details page to view a thumbnail (View is fuzzy)
• Fix problem deleting albums / pictures

[Music]

• Optimisation of single mode, support background playing of music

[Settings]

• Optimise near-by Wi-Fi network interface
• Remove using SIM card, Setting 3G only operator option

[File Explorer]

• Fix in some cases interface problems

[FM]

• Fix loading for first time, opening sound options will appear with white bars problem

[Backup]

• More secure and efficient mechanism for backup and recovery
• Fix problem restoring SMS messages gives duplicated information

[Alarm Clock]

• Optimise the Alarm clock settings
• Fix some third-party clock applications will clear the icon in the upper right corner of the screen to display activated alarm state

Via