Changelog MIUI ROM 6.6.2.0 (KXDCNCF) MI3/MI4 STABLE
Fix - Lagging issue in some situations (04-17)
Fix -Phone got heat/high power consumption issues in some situations (06-04)
Phone
New - Added flash notification light for incoming calls (Call settings - Incoming call settings - Flash when ringing) (04-23)
New - If a call from a unknown number is hung up shortly after it is taken, a prompt will show to ask if you would like to report that number (05-20)
New - Internet calling function supports video calls (Mi Note Pro) (05-25)
Optimization - Optimized answering button icon of Internet calls (04-21)
Contacts
Fix - Add contacts to blocklist function disappeared (04-22)
Fix - Selecting online avatars when editing contacts might cause contacts' avatars display error (04-22)
Fix - Sometimes, search contacts function could not be used (04-22)
Fix - FC error after checking SIM card storage (05-12)
Fix - Contacts app might not respond after logging out of Xiaomi account (05-12)
Fix - Lagging/ FC errors when importing or deleting SIM card contacts (05-21)
Fix - FC error caused by using single quotation marks when searching (05-21)
Fix - Lagging/ FC errors when importing or deleting SIM card contacts (05-27)
Messaging
New - Report junk messages feature (05-13)
Optimization - Optimized SMS conversation page UI style (05-12)
Optimization - Optimized contacts' namecard UI in messages (05-13)
Optimization - SMS delivery status can be updated more quickly (05-28)
Fix - Contact info in SMS displayed incorrectly after switching language (04-14)
Fix - Deleting audio messages might cause FC error (04-14)
Fix - Contact info at the conversation page top left corner might overlap (04-14)
Fix - MMS that were not sent could not be resent (04-14)
Fix - Unsent SMS could not be sent automatically after Airplane mode was disabled (04-24)
Fix - UI display error when editing message recipient (05-13)
Fix - Mi Band 'Vibrate for notifications' feature did not work after receiving a MMS (05-20)
Fix - Messaging app would stop responding if there were too many receipts when sending group messages (05-20)
Fix - Sometimes Slideshow messages could not be sent (05-27)
Lockscreen, Status Bar, Notification Bar
New - Added hotspot icon in status bar when portable hotspot is enabled (05-19)
New - Added charging icon in status bar (05-19)
New - Support displaying virtual network operators' names (05-19)
New - Lockscreen music control (05-27)
New - Added unlocking gesture recognizing mechanism to avoid unlocking caused by misoperation (06-02)
Optimization - Optimized status bar icons' color contrast (05-20)
Optimization - Launching speed of notifications managing page (05-27)
Fix - Sometimes, long pressing notifications directed to the wrong app (05-06)
Fix - Sometimes, Gaussian Blur effect did not work when pulling down notification shade (05-12)
Fix - Sometimes, operator information displayed incorrectly for dual-SIM devices (05-12)
Fix - Sometimes Mi Band could not unlock screen (06-01)
Home screen
Fix - Downloading apps from Games center did not show icons (04-13)
Fix - Icons were disappeared when opening folders in Mi Space (04-16)
Fix - Home screen wallpaper was enlarged after OTA update (04-16)
Fix - Locking apps had error when entering Recents page for the first time (05-12)
Camera
Optimization - Timer is set to 5s by default (05-08)
Fix - Camera FC error sometimes (05-08)
Fix - Sometimes SD videos' previews were stretched (06-11)
Fix - Sometimes, HDR button displayed status incorrectly (06-11)
Gallery
New - Added video album to help manage all videos on your device (05-21)
Optimization - Loading speed when opening large images in cloud albums (05-21)
Optimization - Reduced RAM usage when viewing large images (05-21)
Optimization - Enhanced speed of entering Gallery from Camera (05-21)
Optimization - Enhanced smoothness when scrolling in front page (05-21)
Optimization - Loading speed of Offline page (05-21)
Optimization - Modified setting password icon in secret album page (05-21)
Optimization - Optimized Cloud albums arrangement method (06-02)
Optimization - Optimized cloud albums list UI when choosing to add an image to a cloud album (06-02)
Fix - Random FC errors when viewing images in start page (05-19)
Fix - Layout error when choosing several images to add to cloud albums (Mi Note) (05-21)
Fix - Gallery had a high CPU occupancy after booting up (05-21)
Fix - Sometimes, deleting offline albums caused FC error (05-21)
Fix - 'Unselect all' option could not be chosen after choosing 'Select all' in start page (06-02)
Music
New - Sort music by name, date, and language in 'All songs', 'Offline', and 'Favorites' list (04-15)
New - Added 'Personal' module (04-22)Optimization - Added album names in music list (04-15)
Optimization - Album cover on playing page was set as small by default (04-15)
Optimization - Music start page is changed to 'My Music' (04-28)
Optimization - Optimized albums' default covers (05-13)
Fix - Volume would decrease if new songs were added to the current playing music list (04-15)
Fix - Lyric playing status was incorrect after skipping a song (04-15)
Fix - Listening to local music could choose streaming quality (04-15)
Fix - Part of playing page background was transparent (04-15)
Fix - Display error when entering playing page (04-15)
Fix - Button status displayed differently after sleep mode ended (05-13)
Fix - Sorting buttons' texts did not show completely (05-13)
Fix - Album cover could be edited when both artist and album names were empty (05-13)
Weather
New - Share weather condition images. Support sharing images of selected modules (05-06)
Fix - Sometimes, weather animations displayed abnormally (05-19)
Fix - Sometimes, city weather background was black (05-27)
Fix - Weather animation displayed incorrectly sometimes (05-27)
Fix - Sometimes raining animations did not change directions according to gravity sensor (06-02)
Fix - RAM leak caused by sharing weather conditions (06-02)
Settings
New - Added transition animation when connecting WiFi (05-21)
Optimization - Apps notification will not ring in Do not disturb mode (04-16)
Fix - Sometimes, unlock with Mi Band did not work (04-29)
Fix - Sometimes, incorrect WiFi password prompt did not show after a long time (05-21)
Market
New - Brand new MIUI App store (05-18)
New - Most installed app is list first in searching result page (05-18)
Optimization - Optimized searching result page UI style in special situations (05-18)
Optimization - Optimized the prompt when failed to install some apps due to lack of system module (05-20)
Optimization - Network diagnostic feature is moved to Feedback page (06-01)
Optimization - Optimized system performance during apps downloading/installing process (06-01)
Fix - Sometimes Feedback page had FC error (05-18)
Fix - Sometimes entering App store caused FC error (06-01)
File Explorer
Fix - Files in WiFi router could not be opened (04-14)
Fix - Lagging issue when loading thumbnails (04-16)
Fix - Lagging issue when loading thumbnails (05-21)
Email
New - Contacts managing feature (05-12)
Optimization - Support retrying if failed to download email content (05-12)
Fix - IMAP and POP3 accounts could not open zip type attachments (05-12)
Fix - UI error when using large font (05-12)
Browser
Optimization - Optimized address bar height (05-26)
Recorder
Fix - Recording completed notification did not disappear after pressing the notification to enter Recorder (04-28)
Calendar
Optimization - New events can be created without titles (05-14)
Fix - Editing reminders might cause Calendar to FC (04-21)
Fix - Sometimes, weather condition displayed incorrectly in Calendar (05-28)
Delete - Removed Dismiss button for events notification reminders (06-02)
Data Usage
Optimization - Added settings button on lockscreen notifications page (06-01)
New - Support viewing network permissions after testing network condition (06-02)
Fix - Setting DNS when testing network might cause FC error (06-02)
Clock / Calculator
Fix - UI display error when using large font (05-19)
Mi Credit
New - New Mi Credits center front page (04-15)
New - Added FAQ page (04-15)
New - Added 'Send to desktop' feature (04-15)
New - Multiple activities can be displayed in start page (05-13)
Optimization - There will be a prompt when top-up amount is over the limit (05-13)
Optimization - Pressing on empty space will close the top-up window (05-13)
Fix - Display error in activities page (05-13)
Optimization - Ported the new Mi Credit center start page to Mi Note and Mi Note Pro (05-13)
Optimization - Optimized Mi Credit center start page UI when using large font (05-28)
Fix - Display error in status bar and title bar when there were network errors in Mi Credit center start page (05-13)
Fix - Using pattern lock might cause display error in some pages (05-13)
Fix - Pattern lock displayed incorrectly (05-13)
Yellow Page
Optimization - Optimized notifications mechanism at night for express delivery tracking (06-09)
Mi Cloud
New - Alarm clock settings can be restored from Mi Cloud when switching to new devices (05-19)
New - New Mi Cloud membership system. Allow users to choose from three membership levels (05-20)
Optimization - Optimized Mi Cloud settings page (05-19)
MI Wallet
Fix - FC error caused by switching accounts (06-10)
Fix - UI display error after changing radio sound quality in Settings (05-26)