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Development [Kernel][07.01.2022][Android 12] Kirisakura 1.0.2_S for Asus Zenfone 8 aka "Sake"

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Freak07

Recognized Developer / Recognized Contributor
Jan 2, 2011
5,269
17,040
After fresh setup of the stock ROM I installed Magisk and the modules Riru, microG and FakeGapps for Signature spoof.
Then I replaced the recovery with TWRP and flashed the kernel within TWRP.
Did I do something wrong?
doesn´t sound like it. But flashing the kernel shouldn´t get the phone to bootloop as it boots just fine on the stock rom.
 

dron39

Senior Member
Sep 20, 2009
690
103

Freak07,​

Hi. New FW was released. I tried to download source code with put to link newer FW version, but it looks they haven't uploaded it yet. Or at least I tried every link with MR above 0.53 in it, but was not able to download anything. Have you found correct link to source code?
 

Freak07

Recognized Developer / Recognized Contributor
Jan 2, 2011
5,269
17,040
Update to 1.5.1

Hey guys and girls,


I hope everyone is having a good day or starting into one. Here´s the next update.
The kernel is updated for the latest firmware:
30.12.112.22. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

The link to the firmware can be found here:


More changes in the Changelog below:


Changelog:
- Import zenfone8_zs590ks.MR1-30.12.112.22 source code
- Linux-Stable Upstream to 5.4.148
- Merge CAF (QCOM) upstream up to tag LA.UM.9.14.r1-18300-LAHAINA.0
- GPU driver improvements
- updates from kernel common for several subsystems


Download:



Instructions can be found in the OP!
But look at this post too :)

Have fun, enjoy the kernel and your phone.

Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
 

Devione

Senior Member
Feb 27, 2011
56
14
Thanks for your efforts.

This kernel + stock Asus ROM gives me about 8 hours screen on time. It's brilliant.
 

dron39

Senior Member
Sep 20, 2009
690
103
Thanks for your efforts.

This kernel + stock Asus ROM gives me about 8 hours screen on time. It's brilliant.
Man! How the hell you reach such SoT ? D:
I use this kernel, PNP module +cleanslate app with settings recommended by Freak07 (or at least on his screenshots :D ) but maximum what I had is 5-5:30 SoT. Usually even lower (4:40 - 4:50). I have dynamic mode. when battery 20% or less - Durable.
Could you please post your settings...
 

Devione

Senior Member
Feb 27, 2011
56
14
Man! How the hell you reach such SoT ? D:
I use this kernel, PNP module +cleanslate app with settings recommended by Freak07 (or at least on his screenshots :D ) but maximum what I had is 5-5:30 SoT. Usually even lower (4:40 - 4:50). I have dynamic mode. when battery 20% or less - Durable.
Could you please post your settings...
Hey there, apologies for the late reply.

I don't do much on my device to be honest. I'm probably not your archetypal user. I don't utilise 5G although it's available on my current network, but VoLTE and 4G is on at all times.

I'm running stock ROM with TWRP and root, systemless Magisk for Adaway + BusyBox, don't use any kernel tweaks or apps, although I'm running Kirisakura. Mostly use my device for WhatsApp, Chrome browsing and news apps like Economist, BBC, Reuters etc. Seldom utilise voice calls although I text and use WhatsApp a lot.

A bit off topic here but I originally wanted to run LineageOS but for whatever reason (and seemingly I'm the only individual) vibrate doesn't work when receiving calls in Vibrate mode and vibration for notifications is extremely weak to the point it's almost unnoticeable. Tried GSI ROMs but ended up getting Ram Dump of Death, although thankfully was still able to force boot into bootloader.

I will say though 8 hours SoT is absolutely best case scenario for my use case, 6+ to 7 is more common. Comparatively, this is poor as my last device was a K20 Pro (China edition with the 12gb ram) running LineageOS and Englezos kernel was able to stretch to 9 hours SoT on some days.

Sorry for the long off topic, but more to the point being SoT really depends a lot on individual use case and mine is quite atypical judging from what I read around the internet.

Sorry for the long-winded and somewhat off topic reply, but I hope this (somewhat) helps and answers your questions.
 

Freak07

Recognized Developer / Recognized Contributor
Jan 2, 2011
5,269
17,040
Update to 1.7.5

Hey guys and girls,


I hope everyone is having a good day or starting into one. Here´s the next update.
The kernel is updated for the latest firmware:
30.12.112.36. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

The link to the firmware can be found here:


More changes in the Changelog below:


Changelog:
- Import zenfone8_zs590ks.MR1-30.12.112.36 source code
- Linux-Stable Upstream to 5.4.155
- Merge CAF (QCOM) upstream
- remove logging while device is suspended
- improvements to deep sleep power consumption (ufs driver, auto hibernate)
- reduce auto suspend delay in various other drivers
- improvements on various subsystem like memory management, bluetooth, display, gpu etc
- implement LRNG (thanks @arter97, see arter kernel OP for more info )
- updates from kernel common for several subsystems
- updated ak3 zip, thanks to @osm0sis


Download:



Instructions can be found in the OP!
But look at this post too :)

Have fun, enjoy the kernel and your phone.

Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
 

dron39

Senior Member
Sep 20, 2009
690
103
.46 FW was released.
Strange thing that .zip with source code for .36 was removed from ASUS website... At least from download section, i haven't checked direct link.
 

Freak07

Recognized Developer / Recognized Contributor
Jan 2, 2011
5,269
17,040
Update to 1.7.8

Hey guys and girls,


I hope everyone is having a good day or starting into one. Here´s the next update.
The kernel is updated for the latest firmware:
30.12.112.56. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

Asus brought the change I did in 1.7.5 to the ufs driver, which improves deep sleep behaviour/reduces suspend drain a bit, into the stock kernel. :cowboy:

The link to the firmware can be found here:


More changes in the Changelog below:


Changelog:
- Import zenfone8_zs590ks.MR1-30.12.112.56 source code
- Linux-Stable Upstream to 5.4.161


Download:



Instructions can be found in the OP!
But look at this post too :)

Have fun, enjoy the kernel and your phone.

Donations are not mandatory but very welcome.
If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
 
Last edited:

dron39

Senior Member
Sep 20, 2009
690
103
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  • 7
    Update to 1.0.0

    Hey guys and girls,


    I hope everyone got smoothly into the new year. A bit late, but Happy New Year to everybody.
    The Android 12 update arrived.

    Kernel was rebased from scratch as Android 12 uses a different qcom base than Android 11. This was a lot of work, but it went more smoothly than I expected.

    All previous features and changes should still be intact. Android APIs changed on Android 12, so some kernel changes for CleanSlate apps were necessary. Please update the CleanSlate apps according to the instructions on the CleanSlate thread here and here.

    After flashing the kernel.zip there will be a magisk module in magisk manager called AK3 Helper Module. Do not delete it.

    The link to the firmware can be found here:


    More changes in the Changelog below:


    Changelog:
    - Rebase the complete kernel on Android 12 source for Zenfone 8; zenfone8_zs590ks.MR2-31.1004.0404.73
    - latest linux-stable merged
    - latest qcom upstream merged, including the wifi driver (this contains a ton of improvements)
    - all previous features are kept intact
    - update CleanSlate config and companion app according to instructions on the CleanSlate thread here and here


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
    4
    1.0.0_S was re-uploaded to androidfilehost with wake gestures like double tap to wake or sweep to wake fixed.

    Sorry for the inconvenience, please redownload and reflash 1.0.0 for android S :)


    If you want to make sure you got the correct one check md5sum. correct one is a52bb4f27208eb7d308183886aac5c65

    or check the build date after flashing the kernel. it should be jan4 22:35:56 CET 2022. :)
    4
    Update to 1.0.1

    Hey guys and girls,


    I hope everyone got smoothly into the new year. Here´s the next update for firmware 31.1004.0404.81.
    There are not much changes, other than the source includes complete dtsi files for the kernel device tree now. That means I can build this part from source now and do the exact same changes we had on Android 11 on the Android 12 kernel now as this was missing before.

    Please also read the post about the first Android 12 release as to not miss anything: Linked here.

    After flashing the kernel.zip there will be a magisk module in magisk manager called AK3 Helper Module. Do not delete it.

    The link to the firmware can be found here:
    [/URL]


    More changes in the Changelog below:


    Changelog:
    - Update kernel source to 31.1004.0404.81
    - include previously missing from source kernel device tree files now
    - dts: lahaina: Power off DSI PHY during idle PC
    - lahaina: dts: gpu: enable NAP powersaving state for GPU
    - dts: lahaina: disable per-cgroup pressure tracking to reduce overhead
    - dts: display tweaks to reduce power consumption during idle


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
    3
    Does anyone else except me have issue that wireguard run in user mode and not kernel mode. It doesn't even ask for root rights.
    Latest wireguard from play market, A12 (.73) and latest kernel jan4 22:35:56 CET 2022. Magisk canary 23016.
    seems I forgot to add the wireguard importer. I´ll do that next release when I find time.
    3
    Update to 1.0.2

    Hey guys and girls,


    This basically just adds wireguard to the previous release 1.0.1. For everyone that didn´t read the previous post I´ll just copy and paste everything again.

    I hope everyone got smoothly into the new year. Here´s the next update for firmware 31.1004.0404.81.
    There are not much changes, other than the source includes complete dtsi files for the kernel device tree now. That means I can build this part from source now and do the exact same changes we had on Android 11 on the Android 12 kernel now as this was missing before.

    Please also read the post about the first Android 12 release as to not miss anything: Linked here.

    After flashing the kernel.zip there will be a magisk module in magisk manager called AK3 Helper Module. Do not delete it.

    The link to the firmware can be found here:
    [/URL]


    More changes in the Changelog below:


    Changelog:
    - Update kernel source to 31.1004.0404.81
    - include previously missing from source kernel device tree files now
    - dts: lahaina: Power off DSI PHY during idle PC
    - lahaina: dts: gpu: enable NAP powersaving state for GPU
    - dts: lahaina: disable per-cgroup pressure tracking to reduce overhead
    - dts: display tweaks to reduce power consumption during idle
    - add wireguard kernel backend


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
  • 18
    Kirisakura-Kernel for the Asus Zenfone 8

    Hello everyone,

    To keep it short: Here is Kirisakura - Kernel for the Asus Zenfone 8 aka Sake. The Zenfone line-up internal codenames are traditionally derived from alcoholic drinks. Two years ago the Zenfone 6 bore the title "Kirin". The Zenfone 7 was codenamed "Tequila".
    I would appreciate if everybody that flashes the kernel, reads at least once through this opening post and the following ones.

    Kirisakura - Kernel is designed to bring a handful of beneficial features to the device, while ensuring excellent performance and smoothness to get you safely through the day!
    If you expect a custom kernel to magically improve your devices battery life manifold and this is your only priority then this might not be the right place for you.
    However the kernel is built to keep battery life close to the same as you would experience the on stock kernel while being tuned to perform better in various UI related benchmarks. The same benches are used by google to verify and ensure UI smoothness on the Pixel devices. The scheduler is tuned to yield lower jitter and reduce jank frames.
    If that got your curious, I welcome you to continue reading if you´re still interested!


    This project aims to keep most of the subsystems updated, way ahead of the stock kernel, thereby improving security and performance, while keeping stability as the foucs during testing! This includes Linux-Stable, CAF-Upstream and kernel/common.


    A very positive development. Google pushed for CFI and SCS to be enabled by default in the android-common kernel. In this years generation ( 5.4 linux kernel base/ SD 888 ) CFI and SCS are enabled by default. It was a lot of work to get these features working nicely on the kernel I did the years back. So it´s nice to see this is now there by default in everybody can profit from it.
    I put the explanations and links in hide tags here.

    Kernel Control Flow Integrity (Kernel-CFI), which is achieved by linking the kernel with LLD and Link Time Optimization (LTO), more precisely ThinLTO, are quite unique security features.
    The recently released Kirisakura-Kernel for the OnePlus 8 Pro was featured on the XDA-Portal due to the inclusion of CFI. The featured article explains CFI in great details, is easy to understand and definitely worth to read.
    If possible the latest Kirisakura-Kernel releases for various devices aim to include CFI in enforcing mode so users can benefit from this security features.

    Another security feature is Shadow Call Stack (SCS).
    SCS is another security patchset that is aimed at preventing attacks via return oriented programming (ROP).
    ROP is a technique where the attacker gains control of the kernel stack to overwrite function return addresses and redirect execution to carefully selected parts of existing kernel code.
    If you´re interested here are a few good links:
    Google Security Blog explaining SCS.
    LLVM doc about SCS
    Android DOCs documenting SCS

    If reading about upstream in the paragraph above got you curious, have a read about Linux-Stable and why it is important here. The stable-process is not the same for every subsystem, but the general idea, rule of thumb and benefits are applicable for other subsystems as well.
    Read more about the Release-Model following this link.
    This conversation on the LKML mailing list also shows the power of Linux-Stable and why it´s very beneficial to not just say it´s not worth and a potentiol source for bugs:
    Starting with the Initial Message , the following reply and a good summarizing statement.



    Quick explanation of CAF-Upstream. CAF is short for Codeaurora-Forums. This is the place where development from Qualcomm for their SoCs happens. This includes the Snapdragon 888 that´s built into the different SKUs of the Zenfone 8.
    The kernel-bases available on the Codeaurora-Forums, are basically the foundations OEMs use, to build their own kernel additions on top for devices featuring Qualcomm SoCs.
    The Qualcomm developers push regular updates to the bases of the different SoCs, a bit similar to how Linux-Upstream works. OEMs usually stop updating the initial base after the phone is released.
    This kernel focuses amongst the other features to provide the latest CAF-Updates merged in a regular manner, to provide updates, improvements and enhancements for SoC specific drivers and subsystems! This might take a while, because a lot of device specific testing is done on my end to ensure stability.

    The kernel includes a lot of improvements and contributions from other developers as well. Without this kernel would not exist.
    A big part of improvements originate from @arter97´s, @kdrag0n´s and @Sultanxda´s work. Many others contributed in some way or another to this kernel.
    A big thanks to all of them at this place!

    Now lets continue with a list of features in the next paragraph!


    Main Features:
    - Based on latest kernel sources from Asus for Android 12 and intended to be used on the latest Asus Stock-Firmware (currently 31.1004.0404.81)
    - compiled with Clang 13.0.1 and built with -O3 speed optimizations
    - Linux-Stable-Upstream included to 5.4.169
    - upstreamed CAF base for the Snapdragon 888 (qcoms internal codename "lahaina")
    - include important fixes/improvements from kernel/common
    - tune scheduler for improved jitter and less jank frames
    - reduce power consumption during deep sleep
    - remove logging while device is suspended
    - remove sleep debugging from Asus for release build
    - disable various debugging mechanisms for drivers which are not needed on a perf build (for example touchscreen, fingerprint reader, display, binder)
    - disable various debugging configs, that are not needed in a perf kernel build according to google.
    - disable selinux auditing (we don´t have to adress selinux denials running a stock rom)
    - display tweaks to reduce power consumption on statically rendered images
    - disable unnecessary CPU errata for our specific SoC
    - disable per cgroup pressure tracking to reduce overhead
    - free up RAM by removing reserved mem regions used only for debugging
    - implement LRNG (thanks @arter97, see arter kernel OP for more info )
    - Flashing the kernel will keep root!
    - Flashable via EXKM, FKM or TWRP (if available) on a rooted system!
    - Anykernel zip is based on the Anykernel3 release from @osm0sis


    EAS related features:
    - Implement dynamic WALT-Window size depending on current FPS, collecting information about CPU-Load to provide more precise information for the scheduler
    - EAS implementation patched up to latest CAF state
    - updates from kernel/common
    - scheduler updates from sd888/ 5.4 kernel
    - scheduler update from sony xperia 1 III kernel aiming to improve WALT

    CPU related features:
    - Power saving workingqueues enabled by default (toggleable in EXKM)
    - Change various drivers (WLAN, MM, audio, charger, power, thermal, glink etc) to use power efficient workingqueues. This compliments EAS in general
    - improvements to cpufreq/times/stats
    - vdso32 patches as found on Google Pixel devices (brief documentation here) (CAF 5.4 default, keep for documentation)
    - remove event debug logging
    - disable broken irq detection, disable debugmon
    - improve suspend/resume from audio driver (caf-upstream for audio-kernel)
    - cpuidle: wake only cpus for which qos has changed (this allows cores to keep idle states better)
    - disable debugging during sleep states as per qcom recommendation
    - remove RTB logging to reduce overhead
    - disable trace_printk as it shouldn´t be used on production/perf kernel builds
    - enable suspend_skip_sync to save power during suspend/resume
    - disable edac and coresight (following google on the pixel kernels)
    - disable jtagv8 debugging as recommended by qcom for perf builds to avoid potential power, performance and memory penalty
    - disable s2idle in favor of deep idle state -> improves deep sleep drain (google initially used 2idle for improved suspend/resume latency on pixel 3 and pixel 4, but disabled it on pixel 5. qcom followed suit for sd 888, but apparently didn´t see google reverting it on pixel 5. Other OEMs such as Xiaomi or OnePlus already disabled s2idle on their SD888 devices in favor of deep- read more about s2idle vs deep here)

    GPU related features:
    - GPU driver updated to latest CAF-State
    - gpu/kgsl improvements from pixel 4/pixel 5 kernel
    - add low_prio_worker thread for gpu driver (Improves performance when tearing down processes (eg, via LMK) and not blocking currently running UI from submitting work to the GPU

    File System related features:
    - upstream BFQ-MQ to latest state in linux-mainline and default to 128KB readahead
    - improve memory allocations in kernfs
    - ufs improvements from pixel 4/ pixel 5 kernel
    - improve GC as to not interfere while user interaction is happening and prevent possible jitter or latency spikes

    UI/UX/Usability related features from CleanSlate:
    - CleanSlate features made by @tbalden
    - Disclaimer: All CleanSlate features can be controlled via the free companion and config app found on CleanSlate thread here on the Zenfone 8 Forums on XDA. Please consider buying the premium versions if you enjoy using the CleanSlate features, to give a little something back to @tbalden.

    Network related features:
    - Wireguard Support (Details)
    - advanced TCP algorithms enabled
    - use bbr as default TCP congestion algorithm (fasted algo according to this excellent research from @kdrag0n found here )
    - includes new bbr
    - improved networking drivers from caf-upstream (especially wifi)
    - remove unnecessary wakelock from WLAN driver to reduce thousands of very short wakeups during a 7 hour deep sleep period
    - improved bluetooth performance (¹, ²)
    - Enable support for TTL spoofing

    Memory related features:
    - Speculative Page Faults left enabled (1. 2) (CAF 5.4 default, keep for documentation)
    - Fix various memory leaks in different subsystems
    - improved mm with patches from mainline
    - patches from kernel/common
    - improve memory allocations in various subsystems, video encode/decode, kernfs, cgroup
    - Backport to enable CONFIG_HAVE_MOVE_PMD (see here) , thanks @arter97
    - Backport to enable CONFIG_HAVE_MOVE_PUD (commit here) , thanks @arter97
    - free more RAM by removing unused reserved memory regions
    - mm: Micro-optimize PID map reads for arm64 (improves game performance, especially unity based games such as genshin impact)

    Security related features:
    - Control-Flow-Integration (CFI) and Link-Time-Optimization (LTO) (CAF 5.4 default, keep for documentation)
    - Use ThinLTO which was first used in the Pixel 4 XL Android R-Kernel instead of full LTO (CAF 5.4 default, keep for documentation)
    - Shadow Call Stack (SCS) Security-Feature ( 5.4 default, keep for documentation)
    - enable init_on_alloc for even more security, more information can be found in the commit message (CAF 5.4 default, keep for documentation)


    Misc Features:

    Wakelock Blocker:
    - advanced wakelock blocker with the ability to block any wakelocks (dangerous, use with caution)
    - please read [URL="https://arstechnica.com/gadgets/2018/08/p-is-for-power-how-google-tests-tracks-and-improves-android-battery-life/"]this for further info
    - blocking a kernel wakelock should only be done in case of firmware incompatabilities (WiFi network at work (can´t be changed) causes deep sleep to not work on the phone.) That´s the only use case I see for this feature. The kernel does not features this to improve battery life!

    Other features:
    - clean up asus drivers and fix a few warnings in kernel log
    - disable logging and debugging to make the kernel more lightweight in various places (includes binder, mm, vma, gpu, ipa etc)
    - fix several coding issues detected by newer Clang-Toolchains
    - enlarge dmesg size to ease debugging


    Flashing Guide, Download and Changelog

    Requirements:
    - unlocked Bootloader (this will void warranty and kill future OTA updates on all asus phones at the moment)
    - USB-Debugging in developer options enabled
    - latest adb and fastboot binaries
    - working adb and fastboot environment
    - magisk root
    - a backup of stock boot.img, vendor_boot.img and dtbo.img so you can go back to stock conditions (simplest way is TWRP or to extract from stock firmware)

    How to flash the Kernel:
    1. Download the latest kernel.zip and make sure you have properly updated to the latest matching Asus Stock-Firmware. When the Zenfone 8 receives an OTA update it takes Asus a while to release the source code for the new OS and me a while to build a new kernel. If you don´t want to face any issues, wait until I either release an updated kernel or give green light because there were no kernel changes.
    Always make sure to run the firmware the kernel is built for!
    If you feel adventurous and try in advance, make sure you have a backup ready!

    2. Flash the kernel.zip via latest TWRP (if available), EXKM or FKM app and do a full reboot.

    3. Reboot and profit.


    DOWNLOAD:
    Download is located always in this folder:

    Important: Read after Download
    Please take a look at the second post after flashing the kernel!

    Changelog:
    Android 11

    1.0.0 Initial Release
    1.0.3 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85230887
    1.1.8 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85369421
    1.3.1 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85471991
    1.4.7 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85580815
    1.5.1 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85708459
    1.7.5 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85845707
    1.7.8 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-85845707
    1.7.9 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-86004361

    Android 12
    1.0.0 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-86200913
    1.0.1 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-86219239
    1.0.2 https://forum.xda-developers.com/t/...asus-zenfone-8-aka-sake.4295287/post-86221081


    Donations:
    Donations are not mandatory but very welcome if you want to support development or just buy me a coffee/tea :)
    If you like my work: http://paypal.me/freak07

    Credits:
    Asus for the development device, giving me the opportunity to create this project!
    @osm0sis for all his work, including the ak3 installer!
    @tbalden for being the best HTC, Pixel, OnePlus and now Asus wingman!
    @LeeDroid and @mwilky for their awesome roms and work I used on multiple devices!
    @Captain_Throwback for all the mentoring and guidance!
    @Eliminater74 for bringing me into the game and the Inspiration
    @nathanchance for his upstream guidance and assistance
    @RenderBroken for helping me out
    @flar2 for all his work
    @joshuous for all the help he provided to me in the past!
    @arter97 for giving me advice
    @kdrag0n for his help and advices!
    @topjohnwu for magisk!


    Source Code: https://github.com/freak07/Kirisakura_SAKE_Zenfone_8
    9
    Update to 1.7.5

    Hey guys and girls,


    I hope everyone is having a good day or starting into one. Here´s the next update.
    The kernel is updated for the latest firmware:
    30.12.112.36. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

    The link to the firmware can be found here:


    More changes in the Changelog below:


    Changelog:
    - Import zenfone8_zs590ks.MR1-30.12.112.36 source code
    - Linux-Stable Upstream to 5.4.155
    - Merge CAF (QCOM) upstream
    - remove logging while device is suspended
    - improvements to deep sleep power consumption (ufs driver, auto hibernate)
    - reduce auto suspend delay in various other drivers
    - improvements on various subsystem like memory management, bluetooth, display, gpu etc
    - implement LRNG (thanks @arter97, see arter kernel OP for more info )
    - updates from kernel common for several subsystems
    - updated ak3 zip, thanks to @osm0sis


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
    7
    Update to 1.0.0

    Hey guys and girls,


    I hope everyone got smoothly into the new year. A bit late, but Happy New Year to everybody.
    The Android 12 update arrived.

    Kernel was rebased from scratch as Android 12 uses a different qcom base than Android 11. This was a lot of work, but it went more smoothly than I expected.

    All previous features and changes should still be intact. Android APIs changed on Android 12, so some kernel changes for CleanSlate apps were necessary. Please update the CleanSlate apps according to the instructions on the CleanSlate thread here and here.

    After flashing the kernel.zip there will be a magisk module in magisk manager called AK3 Helper Module. Do not delete it.

    The link to the firmware can be found here:


    More changes in the Changelog below:


    Changelog:
    - Rebase the complete kernel on Android 12 source for Zenfone 8; zenfone8_zs590ks.MR2-31.1004.0404.73
    - latest linux-stable merged
    - latest qcom upstream merged, including the wifi driver (this contains a ton of improvements)
    - all previous features are kept intact
    - update CleanSlate config and companion app according to instructions on the CleanSlate thread here and here


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
    6
    Update to 1.7.8

    Hey guys and girls,


    I hope everyone is having a good day or starting into one. Here´s the next update.
    The kernel is updated for the latest firmware:
    30.12.112.56. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

    Asus brought the change I did in 1.7.5 to the ufs driver, which improves deep sleep behaviour/reduces suspend drain a bit, into the stock kernel. :cowboy:

    The link to the firmware can be found here:


    More changes in the Changelog below:


    Changelog:
    - Import zenfone8_zs590ks.MR1-30.12.112.56 source code
    - Linux-Stable Upstream to 5.4.161


    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07
    6
    Update to 1.0.3

    Hey guys and girls,


    I hope everyone is having a good day or starting into one. Here´s the next update.
    The kernel is updated for the latest firmware:
    30.11.51.67. Make sure to update to the latest firmware before flashing the kernel to have no compatibility issues.

    The link to the firmware can be found here:

    md5sum: 0f30d5e043f4a675e7db3250d5218125


    More changes in the Changelog below:


    Changelog:
    - Import zenfone8_zs590ks.MR0.4-30.11.51.67 source code
    - Linux-Stable Upstream to 5.4.128
    - bump clang to latest prebuilt clang by google (12.0.7)




    Download:



    Instructions can be found in the OP!
    But look at this post too :)

    Have fun, enjoy the kernel and your phone.

    Donations are not mandatory but very welcome.
    If you like my work and want to buy me a coffee/green tea to keep development going: http://paypal.me/freak07