[KERNEL][4.4.302+][for Android 9] A2N Kernel for Galaxy S8/S8+/Note8 (Exynos) [R61]

[rtyuakatsuki]

View attachment 5830879
Which one??

Ouh that i use fhd+ default settings

 

[ace2nutzer]

R58 is Up!

Changelog

Download

Uploaded also latest adaway_hosts_patcher.zip, that you can flash in recovery. This will replace your "/system/etc/hosts" file.
In addition it's patched to fix high battery draining / 100 % CPU load, when using YouTube Vanced or Youtube Music from Vanced team.

 

[Twiq]

R58 is Up!

Changelog

Download

Uploaded also latest adaway_hosts_patcher.zip, that you can flash in recovery. This will replace your "/system/etc/hosts" file.
In addition it's patched to fix high battery draining / 100 % CPU load, when using YouTube Vanced or Youtube Music from Vanced team.

R58 already running with 37hrs uptime

 

[DetsuneXDA]

would it be possible for me to use a 3rd party kernel control? i tried and the app just dont apply. only a2n kernel control works.

 

[ace2nutzer]

After you pass license check, other apps should work, at least partially due to missing support for my custom kernel sysfs interfaces. But what is missing in A2N app? - Maybe I can add the missing features.

 

[DetsuneXDA]

After you pass license check, other apps should work, at least partially due to missing support for my custom kernel sysfs interfaces. But what is missing in A2N app? - Maybe I can add the missing features.

Some functions like:
-change minimum CPU/GPU clock;
-show CPU/GPU/battery temperature;
-Build.prop editor;
-LMK editor (Low Memory Killer);
-HMP editor (Heterogeneous multi-processing).

if you can put it that functions would be interesting

 

[Twiq]

Some functions like:
-change minimum CPU/GPU clock;
-show CPU/GPU/battery temperature;
-Build.prop editor;
-LMK editor (Low Memory Killer);
-HMP editor (Heterogeneous multi-processing).

if you can put it that functions would be interesting

+1 on LMK

edit: not a demand nor request, i respect author's decision on what to implement and whats not

 

[ace2nutzer]

Some functions like:
-change minimum CPU/GPU clock;
-show CPU/GPU/battery temperature;
-Build.prop editor;
-LMK editor (Low Memory Killer);
-HMP editor (Heterogeneous multi-processing).

if you can put it that functions would be interesting

Thanks for the hints!
I can consider to add CPU/GPU temp in next update.
Battery temp is already there, check it.
The other settings are interesting too, but they will not be added, because it won't have any benefit changing the default values, which are already optimized to the max.
Except build.prop editor, but it has nothing to do with the kernel and therefore it'll not be added in a kernel control app.

As for LMK: Android (the ROM) will pass at boot proper values to the Android LMK in kernel. Those values are already good and stable.
You can try to edit the 6 "minfree" values and usually you can also change the 6 "adj" values which corresponds to the minfree values.
There are apps that are able to change the minfree values or have presets, but those presets are not suitable because they depend on the amount of RAM, device dpi and Android version. In addition they don't adjust the "adj" values.

 

[DetsuneXDA]

Thanks for the hints!
I can consider to add CPU/GPU temp in next update.
Battery temp is already there, check it.
The other settings are interesting too, but they will not be added, because it won't have any benefit charging the default values, which are already optimized to the max.
Except build.prop editor, but it has nothing to do with the kernel and therefore it'll not be added in a kernel control app.

As for LMK: Android (the ROM) will pass at boot proper values to the Android LMK in kernel. Those values are already good and stable.
You can try to edit the 6 "minfree" values and usually you can also change the 6 "adj" values which corresponds to the minfree values.
There are apps that are able to change the minfree values or have presets, but those presets are not suitable because they depend on the amount of RAM, device dpi and Android version. In addition they don't adjust the "adj" values.

Okay, Thx!

 

[TechNoobForSale]

Thanks for the hints!
I can consider to add CPU/GPU temp in next update.
Battery temp is already there, check it.
The other settings are interesting too, but they will not be added, because it won't have any benefit changing the default values, which are already optimized to the max.
Except build.prop editor, but it has nothing to do with the kernel and therefore it'll not be added in a kernel control app.

As for LMK: Android (the ROM) will pass at boot proper values to the Android LMK in kernel. Those values are already good and stable.
You can try to edit the 6 "minfree" values and usually you can also change the 6 "adj" values which corresponds to the minfree values.
There are apps that are able to change the minfree values or have presets, but those presets are not suitable because they depend on the amount of RAM, device dpi and Android version. In addition they don't adjust the "adj" values.

I’ve often been sceptical about Ace’s claims that frequency scaling is already optimized so much that putting min same as max frequency would yield no benefit.

But I benchmarked on his kernel for a long time, and his claims are actually genuine. His frequency scaling is so fast and efficient that whenever an app requires immediate power (such as benchmark), cpu will boost immediately and provide max performance (of course according to highspeed trigger load)

 

[ace2nutzer]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

 

[spdrfx]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

I have no problem =]

 

[Ryujin96]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

No issues here

 

[rtyuakatsuki]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

stable in my position

 

[TechNoobForSale]

Hey @ace2nutzer can I quote you in a YT video I made about an OC'ed S8 3DMark run? So people looking to root their S8 know where they should look.

 

[ace2nutzer]

Hey @ace2nutzer can I quote you in a YT video I made about an OC'ed S8 3DMark run? So people looking to root their S8 know where they should look.

Sure, why not?

 

[Just_try]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

Stable Sir

 

[archeiii]

Hi guys!
R58 is out now since 2 weeks!
Is it stable?

It is stable in mine. (G955FD)

 

[Abdul rizal]

Revive your Samsung Galaxy S8 / S8 Plus phone in 2023!
Fastest custom kernel world-wide with lots of innovative features!

Supports all S8 / S8+ Plus / Note8 Exynos Variants Running Android 9

A2N Kernel Special Features

• Google Play - certified device
• SafetyNet: OK
• DRM: L1/L3 patch (you can apply L1 or L3 patch over A2N app demo version)
• 100 % compatible with latest Magisk
• Banking apps works fine
• Charger control for faster charging
• Battery IDLE and battery care
• Stable CPU OC up to 4 x 2,8 GHz
• Stable GPU OC up to 20 x 839 MHz
• Adjustable CPU / GPU - Max Temp
• Adjustable Battery Max Temp
• Voltage control for all clocks (CPU lit/big - GPU - RAM - bus clocks etc..)
• Fixed time to full battery
• Flashlight tuning
• Wireguard backend support - always latest version
• DriveDroid backend support
• Dex with any HDMI adapter - thanks @ Barna Keresztes
• Samsung Dex: WQHD support with every adapter - thanks @ craftingmod
• Higher SOT - with new battery up to 10 h, with old battery see screenshots
• Wi-Fi calling & VoLTE works
• S8: RAM upgrade - 3679 @ 3717 MB
• Note8: RAM upgrade - 5339 @ 5376 MB
• SELinux in permissive mode - thanks @Noxxxious
• DRM - L3 stable streaming
• Replaced SSWAP with zRam (RAM compression) - with fast LZ4 compressor
• Added backend NTFS, CIFS and NFS support
• Removed enforced device encryption - you can enable it in Android security settings
• HMP driver fix
• Added extra gamepads drivers: Xbox / Sony PS / Nintendo Wii
• Ability to set different CPU Freq while screen ON/OFF
• Ability to use only the little CPU
• Proper support for Korean version (proper Wi-Fi power)
• and many more ...

This Kernel Aims are to

• reduce the power consumption
• reduce device heat
• improve the performance
• make it more smooth
• reduce RAM usage
• improve RAM management
• extend device features
• and many more ...

A2N Kernel Control - App Features

Best way to tune this kernel to your needs
Note: 3-party kernel manager apps do not work with this kernel.

# App Features #
# CPU/GPU
-- Overclock Control
-- Voltage Control
-- Stable CPU OC up to 2,0 GHz/2,8 GHz (lit/big)
-- Stable GPU OC up to 839 MHz
Ability to use different CPU Freqs while the screen is OFF.
Ability to disable boost, for better battery life.
Governor up_threshold, to adjust balance between performance and powersave.
DVFS Max Temp (thermal throttling) - Range: 55 - 100 °C - Default 65 °C.
To avoid too big performance drops from stock thermal throttling driver.
-- Input Booster
Adjust touch boost CPU duration in ms, to improve scrolling.
Ability to use only the little CPU.

# Performance Profiles
-- Powersave
-- Balanced (Power Efficient)
-- Performance (Kernel Default, customizable in CPU/GPU menu)
-- Performance Plus (Gaming / OC) (customizable CPU/GPU Freq below the profile)

# Power
-- Charger Control
Adjustable Max input current in 100 mA steps. - Range: 200 - 3000/3300/3500 mA (S8/Note8/S8+) - Default: 1500 mA.
This affects the time required for charging the battery.
For the S8: the original AC charger (9.0 V -- 1.67 A // 5.0 V -- 2.0 A) is enough to achieve 3000 mA charging current.
For the S8+ make sure that your USB charger supports min. 9.0 V -- 2.0 A or 5.0 V -- 3.5 A.

-- Battery Informations
Charging current, input voltage (5 or 9 V), temperature and voltage.

-- Battery Care
E.g. stop charging at 95 % to reduce battery aging. - Range: 50 - 100 % - Default 100 %.
Battery IDLE feature, useful for DeX or gaming.
Limit charging temperature. - Range: 30 - 45 °C - Default 40 °C.
This will throttle charger input current if needed.

-- Battery Service
Shows charge cycles and ability to reset it.
Check real battery capacity in % / mAh and ability to reset it. (battery gauge recalibration)

-- Disable (Buggy) Moisture Detection
Ability to disable this, for the case that the USB- or Jack port is dry but you get still a warning.

# Screen
HDMI/DEX custom resolution changer (to fix low resolution / refresh rate)

# RAM
-- Memory Management
Swap / zRam* - LZ4 compressed swap block-device in RAM - Choice: 0 - 100 % of RAM size.
Adjust Swappiness, page-cluster and read_ahead_kb.
Ability to drop caches / buffers, to free RAM.

* For multitasking, gaming, responsiveness and battery life.

# Network
Load kernel module for network file systems
SMB2/SMB3 / CIFS
NFS v2, v3 & v4
L2TP - used for VPN.
Wireguard - Secure Network Tunnel.
TCP Congestion Control - Choice: cubic, new reno, bic, westwood+ etc ...
Wi-Fi Band Selection, choice: "2.4 GHz / 5 GHz", "2.4 GHz only" or "5 GHz only".

# Misc
-- Torchlight Tuning
Increase brightness. - Range: 1 - 17 (to get brighter torch)
-- LED-RGB
Set blink ON / OFF delay for notifications / low battery.
Increases brightness of the LED by disabling powersave mode.
-- Accelerometer Calibration
# File Systems
-- Load kernel module - NTFS.

# Advanced Power Menu
Ability to reboot to recovery / download-mode
## END App Features ##

DOWNLOAD

Installation from Scratch
(assuming you are using latest stock ROM)​

• Settings --> Phone Info --> Software info --> build number (tap 7 times)
• Tap 2 times the back-key
• Developer settings --> enable "OEM unlock"
• Download TWRP for S8 / S8+ / Note8 accordingly (the .tar version, for ODIN flash over PC)
• Download latest A2N Kernel for S8 / S8+ / Note8 or for Korean variant: S8 / S8+ / Note8 accordingly and put the file in USB-thumb or in micro-sd-card
• Download latest Magisk.apk
• Rename Magisk.apk to Magisk.zip and put the file in USB-thumb or in micro-sd-card
• Power off​
• Boot in Download-mode​
• Flash the .tar twrp file with ODIN (disable "auto-reboot" and "reset time")​
• Reboot directly to TWRP​
• wipe ---> format data ---> "yes" (type yes) and ENTER.​
• Flash latest A2N Kernel​
• Flash Magisk.zip​
• Optional but recommended: flash AdAway_hosts_patcher_g95x.zip (battery drain fix for vanced YouTube and vanced YT music)​
• Reboot to system and enjoy !​
• Note: first boot takes around 15 minutes for proper app optimization !​

Update A2N Kernel

• Download and flash latest A2N Kernel for S8 / S8+ / Note8 or for Korean variant: S8 / S8+ / Note8 accordingly​
• Flash Magisk.zip​
• Reboot to system and enjoy !​

Current Bugs and Changelog
FAQ

Disclaimer​

I am not responsible for anything that happens after flashing the work provided here.

Sharing is caring, so according to the (much unwelcomed) rule 12 you can use my open source on GitHub without my explicit consent or credits. But this is where the caring stops as I do not allow you to use any of my own provided files (except for unmodified stock files). Section 3 of this rule states that you can try to bypass my explicit consent by releasing it as your own when you succeed to make significant changes to the work, otherwise i'll report you and your thread will be removed.

Credits​

Linus Torvalds - Linux kernel
Google - Android kernel patches
Samsung - device kernel source
@corsicanu - TWRP recovery - original thread
@S.AMU for providing FTP-Server
000webhost - Webhosting
@Noxxxious for the nice disclaimer text
XDA members - Reporting bugs

Minimum stable version: R54

Contributors
ace2nutzer

Source Code: https://github.com/ace2nutzer/Samsung_dreamlte_Kernel

 

[Abdul rizal]

Initial Release

Changelog

Kernel 20181205

• Initial Release - All changes compared to the Stock Kernel u can find it in Post #1 "A2N Kernel Features"
• Based on Stock CRGH Source

A2N Kernel Control [G950] V1.0

• Initial Release - All Features you can see in the built-in Demo App by flashing the Kernel package

Version Info
This Thread // Kernel is only for G950x.
I'll release G955x Kernel and App in a new Thread just to keep things more sorted.
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Which Filesystem are u using on the sdcard?



This Kernel is optimized to work best with the Stock ROM, but it's nice to hear that it works as well with custom ROM.



Yeah that's normal it's a fully optimized custom Kernel, all features works only with the original Kernel Control App from me. Using such "Universal" Kernel Manager Apps can even make your Phone unstable and will not make things better. That's why i build for every Device // Kernel a separate Kernel Control App.
Otherwise i would build also an Universal Kernel App ... but it's not that efficient and this is what u Guys definitely don't want for sure.



Because we only need one good working CPU Governor and I/O Scheduler ... right ?
Short and easy explanation:

Interactive: it's the perfect gov for low latency workloads. - So it's perfect for Android to have a smooth and quick response experience.

Deadline: It's optimized for Flash Devices, it's simple and stable - Also appropriate for Android.

All other Gov and I/O are unstable or will decrease the Performance and or battery lifetime ...
(at least not very appropriate for Android .... however there's also I/O sched "ROW" or "FIOPS" which would be also ok for android, but they are not that stable like "deadline" and the difference in I/O Performance isn't that much.
So i've removed them so that u Guys can't change (accidentally) this important Drivers.



G950 App comes hopefully Today out .. unless Google will block it again.



Sorry, there's no Trial Version at all ... only the Demo u can find in the Kernel Package.
But i know, u can't Tweak anything.... Please wait for the full Version.

Thank u very much Guys for your Appreciation. :good:

I've been using the a2n kernel and it's rooted but my screen on time doesn't last up to 8 hours, it only gets 4 hours Is something wrong