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Ancient OS with Android 11 For Redmi S2/Y2 (Ysl)

Ancient OS 5.5 | Android 11
for Redmi S2/Y2 (YSL)
Maintained by: @NotReallyDust

  • Build Variant: Vanilla
  • Build Version: 5.5 | Society
  • Build Date: 24 August l 2021

Source Changelogs:

Ancient OS 5.5 | Android 11

  • August security patch
  • Fixed extreme battery saver fc
  • Fixed media shared for some user fc
  • Back old GoogleDialer
  • Added QS Panel style (Stocklike, Ancient UI, OOS like panel)
  • Improve and Add more StatusBar Dual Row Style (status bar height now auto switch according to style)
  • (thanks to @krisnaabdillah and @nabil_aba for the new layout)
  • Added more status bar icon
  • Rework Brightness Style to Non-overlay
  • Added Notif Header text color
  • Improve Simple Statusbar Padding
  • Rework Font overlay
  • Re enable qs drag handle (switchable with qqs setting n brightness on stocklike panel)
  • Improve n Rework Header Image Size
  • Improve and Add more LandScape Battery (thanks to @hellonetizen for new battery style)
  • Improve status bar toggle slider
  • Force enable all CarrierLabel placement
  • Rework Ancient QsClock Style to non-overlay (improve speed when switching style)
  • Added back Ancient a10 QsClock to style
  • Added Settings Homepage like stock style
  • Added more settings theme (with or without card)
  • Added volume for app
  • Added WFD legacy output video mode
  • Added live display
  • Added Monet engine from DotOS (Need re-apply wallpaper image after choosing color pallete)
  • Added LS clock Android S and more
  • Added reticker
  • Added heads-up timeout
  • Added wakelockblocker
  • Added alarm blocker
  • Added switches style android S
  • Improve FOD
  • Fixed charging vibrate
  • Disable ambient music
  • Updated to accenter 3.0
  • Enable network activity indicator
  • Allow disable suggestion in the launcher
  • Misc

Device Changelogs :

  • Initial Official Build
  • Upstreamed kernel to 4.9.280
  • LKMD is enabled by default
  • Implemented few Surfaceflinger Props
  • Addressed some denials


  • Clean flash is recommended.
  • This is a File-Based Encryption Build.
  • Flash latest TWRP from here
  • Flash instructions are here
    • Wipe system, data, cache, vendor.
    • Wipe /data (press yes)
    • Flash the ROM
    • Reboot
    • Flash NikGapps or FlameGapps basic.



  • All Developers and Testers


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