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[ROM][Pie][OFFICIAL] COSP [9.0.0][cepheus][2019/10/26]

Giton22

Senior Member
Oct 11, 2017
107
55
0
Budapest


Code:
**** Disclaimer: I'm not responsible if you destroy your device. Use at your own risk!!! ****
Welcome to COSP, your new future Android Operating System.
Our goal is to have an Pixel-like android ROM that isn't spying on you and uses as few system space as possible. Also, we provide the option to go completely without GApps using MicroG support.

Why us?​
We are focusing on stability and performance, having an debloated ROM is essential for that. Also, we want Users to decide what kind of Store they want to use, either F-Droid or the Play Store.
Also, we take User requests serious. To suggest something, contact us on telegram.

Features​

1) All systemUI tuning elements
2) An handy Network indicator
3) Charging Information
4) Lawnchair and Quickstep as default
5) Quick Settings mods
6) Signature spoofing
7) OP gestures
8) Navbar tuner
9) Rootless Substratum (with fixes to theme system correctly)
10) Screenshot/screenrecord tile
11) Advanced power menu
12) Double tap to sleep on statusbar
13) Option to disable quick settings/power menu on secure lockscreen

OTA Updating for official devices enables Users to get the newest version with ease.

Thanks to RuinWMD666 for maintaining this ROM!
Installation
Code:
[LIST=1]
[*]Format data
[*]Reboot
[*]Wipe Caches,System,Vendor,Data[B](DON'T REBOOT AFTER WIPING  VENDOR)[/B]
[*]Install Vendor(9.8.1) and ROM and Gapps
[/LIST]


LINKS
Latest ROM​

Project website​


Sources:
ROM Source: https://github.com/cosp-project/ [
Kernel Source code: https://github.com/EviraKernel/Officialmi9
Device tree: https://github.com/markakash/device_xiaomi_cepheus

XDA:DevDB Information
[ROM][Pie][OFFICIAL] COSP [9.0.0][cepheus][2019/10/26], ROM for the Xiaomi Mi 9

Contributors
Giton22, RuinWMD666, markakash,resurrect
Source Code: https://github.com/cosp-project/

ROM OS Version: 9.x Pie
ROM Kernel: Linux 4.x
Based On: AOSP

Version Information
Status: Stable
Stable Release Date: 2019-10-26

Created 2019-10-26
Last Updated 2019-10-26
 

Attachments

Last edited:

ibeddine

Member
Sep 28, 2018
18
3
0
Tried the ROM, it's really stable and better than all ROMs I have tried for Mi 9, even Battery is performing like stock firmware, Good Work
No bug until now
 

j4dotcc

Senior Member
Dec 27, 2016
56
27
0
Thanks for the development. I am using it since 1 day and I am quite satisfied. Everything works fine (including dt2w) and the ROM seems stable so far. Battery idle drain is around 1 to 1.5 % which is okay, but I will check during the next days to get a final conclusion. Again, thanks.
 

Kris Chen

Senior Member
Jan 10, 2013
645
277
63
Taoyuan
I spent some time to flash COSP BUT i still rolled back PE+ with Los kernel base. Some reasons here:
1.Security is outdated.(It' still in Sep-2019)
2.Phone and message app are outdated as well and cannot be changed into black theme.
3.Cannot install Dolby sound mod.

Kris
 

badaas

Elite Member
Feb 28, 2008
1,490
272
83
I spent some time to flash COSP BUT i still rolled back PE+ with Los kernel base. Some reasons here:
1.Security is outdated.(It' still in Sep-2019)
2.Phone and message app are outdated as well and cannot be changed into black theme.
3.Cannot install Dolby sound mod.

Kris
1. It's October, Google messed the name up.
2. Umm, install newer ones.
3. It's a phone!


?
 

KaiseRRUby

Senior Member
Oct 17, 2012
345
73
28
Do the screen refresh overclocking mods work on this?
Yes, i'm on 84hz.

Do you have more information about the OP gestures? Trying to get this to work.
Cannot get this to work. Using Fluid NG now.

Thanks for the development. I am using it since 1 day and I am quite satisfied. Everything works fine (including dt2w) and the ROM seems stable so far. Battery idle drain is around 1 to 1.5 % which is okay, but I will check during the next days to get a final conclusion. Again, thanks.
Yes, battery is good. I was on 0,72% overnight.
@RuinWMD666 Thanks a lot for building this rom. Its clean, fast, easy to use. The clock with notifications in it is very nice, did not know that it existed.

Two minor things:
- Android Auto will cause trouble. Disable hardware overlay in developer options fixes this. This is a problem on every AOSP based ROM.
- Charging in my car is very, very slow. This is also a problem with all AOSP roms. On MIUI charging is faster. So, when i'm in my car it seems that voltage is turning down by AOSP rom.

Is there a fix for charging?
 

djtechno98

Senior Member
Aug 1, 2014
218
71
0
Rivoli
Yes, i'm on 84hz.



Cannot get this to work. Using Fluid NG now.



Yes, battery is good. I was on 0,72% overnight.

@RuinWMD666 Thanks a lot for building this rom. Its clean, fast, easy to use. The clock with notifications in it is very nice, did not know that it existed.

Two minor things:
- Android Auto will cause trouble. Disable hardware overlay in developer options fixes this. This is a problem on every AOSP based ROM.
- Charging in my car is very, very slow. This is also a problem with all AOSP roms. On MIUI charging is faster. So, when i'm in my car it seems that voltage is turning down by AOSP rom.

Is there a fix for charging?

Wow, very thanks for the Android Auto fix, i love you! :eek: