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[ROM][CAF][UNOFFICIAL] halogenOS 7.1

1,930 posts
Thanks Meter: 1,989
By xenreon, Recognized Themer on 28th August 2017, 09:15 PM
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Android, Reimagined.

For the best experience, view the thread on a web browser like Chromium or Firefox.
Desktop: Brilliant. Mobile: Good. Tapatalk: OK. XDA-Labs: Horrible.

  * The modifications performed to your device are
  * performed by yourself, thus you must perform the
  * leap of fate and accept the inevitable outcome, the
  * responsibilities of what to do with your device are passed to you.
  * We are of no responsibility for any damages, data loss
  * or results of unexpected outcome, if you have **SERIOUS**
  * problems with this software, do not hesitate to contact
  * the developers or maintainers of your device port.
  * We are not liable for anything that happens with your
  * device. Shall you somehow screw up and take the leap of faith
  * you may find that some companies may do indeed still honour
  * warranties, although we cannot give one ourselves.
  * Don't be stupid and bet on that generosity of companies though,
  * please be responsible for what you do with your device.
  * Do not try overclocking up to glorious 1337 GHz thinking an OEM
  * would replace your glorious space heater only matched by the GTX480 etc.
  * We recommend you to take the advice above regardless.

XOS is a new generation Android-based cutting-edge OS based on the Android Open Source Project and Code Aurora Forum releases.

What is XOS?
halogenOS, also known as XOS is a new Android ROM which ships with the global aim to
become a modular ROM which keeps as high as potentially possible operating
performance on your mobile device while still maintaining a sufficient feature
base of nice, small and minimal features that would not be available via any
external feature base, extension, mod or plugin.

We hope you have a truly halogenified experience!

Internals of XOS
At core, the ROM is composed mainly of components from the
Android Open Source Project (AOSP) and Code Aurora Forum (CAF),
with extremely minor set of components from LineageOS (LaOS or LN) which
have been added to source in order to allow for better cross-device compatibility.

Our LOVE to others
A huge thanks goes to those behind the AOSP and CAF, the LineageOS Project and all of its
contributors for the sources used in the development of the base ROM which we
started with inclusive of all the work and dedication their team puts in order to
keep us updated on the awesome contributions that they make.

We will be keen on ensuring that we be up to date with the code from our base sources,
with regular ROM updates hopefully coming from time to time.

Please do not ask for ETA's (else you shall be spooked by Mr Skeltal). Almost all of us are
students, and with the current lifestyles and routines we have, it is not that easy to acquire
time to develop the ROM, though we'll be sure to keep you updated and release OTAs as
soon as they are available and ready for publication. If you want to be really updated quick,
then join us on Telegram:

Visit our website for features such as: Downloads, Information etc.

Although no data should be lost or damaged by the flashing process,
we advise you to follow the following steps if you are coming from another ROM:
 * Please take a full Nandroid backup!
 * Please copy your back up to an external device.
 * Backing up your Internal Storage is also recommended.
 * When completed, clean flash the build!
Although you usually may dirty flash halogenOS over other ROMs, considering the other
ROM is built upon the same Android version, it is not guaranteed.
In case of performance issues or crashes please do a clean flash.

You can dirty flash halogenOS 7 (Nougat) over halogenOS 6 (Marshmallow)
without any problems. Although we cannot promise that it will work for you,
although we don't recommend it, we can tell you that this has been tested.

Overall as a ROM, XOS is very stable. Our mission statement has always been of maintaining a clean and properly maintained ROM.
We take proper priority with ensuring that performance and stability are put first, features are considered an extra topping on the cake.

More details are marked by square brackets [x] and listed below

All Builds/Devices/Maintainers
Substratum Theming Support
Custom Button Backlight Implementation
Custom Lockscreen Visualizer
SuperUser Capable
Various Battery Optimizations
Dexpreopt Enabled
Offline Gesture Recognition
Upstream Security Patches
Support for `addon.d` and `init.d`
Equipped with latest Busybox
Application Signature Spoofing Toggle
Support for 3rd Party Webviews
Various Kernel Optimizations
Support for Modern Services e.g. Google Assistant
Long Press Home for Assist
Custom Hotplugging
(DEV) Full KeyHandler & KeyDisabler Support
Enhanced Booting Speed [1]
System UX & Performance Optimizations [2]
Minor Audio Tweaks [3]
Enhanced Media Support [4]
I/O Tweaks [5]

Select Devices/Maintainer Dependent
KCAL Support
Functional Vulkan API Implementation [6]
OnePlus Camera
Alert Slider Support

[1] Performed via implementation of additional multi-threading on boot etc.
[2] Tweaked `surfaceflinger`, `inputflinger`, `System Server` & more...
[3] We do not ship 3rd party EQs or other crap you may sometimes find.
      Our sound system is completely clean and thus provides great soundmod
      support if that's what one really wants.
[4] Enabled via FFMPEG & additional codecs.
[5] Example: Disabled Access Time
      | Waste of write cycles and impacts I/O performance on random writes.
[6] Vulkan is available if the chipset/SOC's GPU supports Vulkan.

Installing for the first time
* Download the current version of XOS for your device.
* Reboot into a compatible Android Recovery solution. (Note: We recommend TWRP)
* Wipe '/system', '/data' & '/cache'.
   (Optional: For `Dirty Flash`, do not wipe anything)
* Select the appropriate ROM zip and flash the current ROM build.
* Want Google Apps? Obtain and flash the latest GApps from
* Flash any other system modifications you may want e.g. SuperSU/phh's SuperUser.
* Reboot.
Manually updating the ROM
XOS ships with an OTA updater built-in which should automate the downloading and flashing process,
however should your wish be to manually update the ROM, you should be our guest.
* Download the current version of XOS for your device.
* Reboot into a compatible Android Recovery solution. (Note: We recommend TWRP)
* Please do not wipe anything, including Cache/Dalvik/ART, the ROM has you covered.
* Select the appropriate ROM zip and flash the current ROM build.
* Reflash any system modifications e.g. SuperSU/phh's SuperUser.
* Reboot.
You do not need to wipe Cache/Dalvik.
You do not need to flash Google Apps again*.
You do not need more than 5 minutes.

* Just make sure that you don't wipe system before flashing.


Currently right now, halogenOS will only include the stock Android theme.
We may one day decide to use a custom theme as soon as that theme is working perfectly fine.

@xdvs23 (actually xdevs23, but that was already taken on XDA)

Download Links
Download XOS Here
halogenOS (All Builds) | Download Section

ROM Sources
All Sources | ROM, Kernel, Trees etc. @ XOS GitHub Organisation.

Redmi Note 4
Kernel source
Device tree
Vendor tree

Code Aurora Forums, CyanogenMod, Grarak
And everyone else who contributed and helps us!
In case you feel left out here, please contact us!

XDA:DevDB Information
halogenOS, ROM for the Xiaomi Redmi Note 4

Source Code:

ROM OS Version: 7.x Nougat

Version Information
Status: Stable

Created 2017-08-28
Last Updated 2017-08-28
The Following 14 Users Say Thank You to xenreon For This Useful Post: [ View ] Gift xenreon Ad-Free
28th August 2017, 09:19 PM |#2  
xenreon's Avatar
OP Recognized Themer
Thanks Meter: 1,989
Credits: @abhishek987 @DroidThug

You tell me?

Requirements to report a bug:
- Make sure that you aren't using a custom kernel or any system mod
- Explain in details as to what the issue is and how to reproduce it,accompanied by a screenshot/screenrecord and necessary logs (Google how to take a logcat,dmesg,last_kmsg)
Any bug report that won't follow this ^ will be ignored
The Following 2 Users Say Thank You to xenreon For This Useful Post: [ View ] Gift xenreon Ad-Free
28th August 2017, 09:26 PM |#3  
Senior Member
Thanks Meter: 31
Im very happy to see the newer version of it I will check it later (y)
28th August 2017, 09:40 PM |#4  
Senior Member
Flag New Delhi
Thanks Meter: 407
Nice to see Halogen back again.
28th August 2017, 10:03 PM |#5  
Senior Member
Thanks Meter: 203
Will it get Offical ?
29th August 2017, 12:44 AM |#6  
Senior Member
Kurukshetra, India
Thanks Meter: 121
Which difference with it ( )?
2 months ago I used it, then no news back 🤔
29th August 2017, 12:50 AM |#7  
Thanks Meter: 13
Originally Posted by vyvy

Which difference with it ( )?
2 months ago I used it, then no news back 🤔

The maker (droid thug) abandoned the ROM. So I believe he's just porting it to take over for us
29th August 2017, 03:38 AM |#8  
rahulk096's Avatar
Senior Member
Flag godda
Thanks Meter: 137
Is video call from dialer works??
29th August 2017, 04:34 AM |#9  
Junior Member
Thanks Meter: 3
new halogen os 28/08/2017
29th August 2017, 04:43 AM |#10  
Sachin's Avatar
Recognized Contributor
Thanks Meter: 3,098
Bro, what about volte?? @xenreon, thanks.
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29th August 2017, 04:49 AM |#11  
ThanveerAliSayed's Avatar
Senior Member
Flag kochi
Thanks Meter: 148
Originally Posted by zack1908

new halogen os 28/08/2017

Volte works ?
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