[Samsung Galaxy Note 9 (Exynos) ROMs, Kernels, Reco] Eamo5:
Endurance Kernel • Galaxy Note 9​

Endurance Kernel was designed by me with the goal of providing a much more responsive user experience whilst simultaneously conserving the devices battery as much as possible. This kernel is a port of Endurance Kernel, recreated for the Galaxy Note 9. The kernel is largely adjustable in the paid app EX Kernel Manager (EXKM) by flar2 or in the free app MTweaks by Morogoku. Please note, I don't actually own a Note 9!

DISCLAIMER - I am not responsible for any harm that may come to your device as a result of flashing this kernel. I am however happy to provide support if required.

Downloads

1.x.x indicates the kernel should be used with an Oreo based firmware. 2.x.x indicates the kernel should be used with a Pie based firmware.

Latest GitHub Release

MEGA Repository

Key Features

Latest ELS (almost) always merged in

Implemented AndreiLux’s custom scheduling, EAS backports, 16ms PELT half-life, and migration hysteresis filter

Hotplugging enabled

Boeffla wakelock blocker supported (default list tweaked for improved deep sleep)

Support GPU overclocking up to 598MHz on all builds

Adapted notification LED fade support from NX Kernel from the Galaxy S8

Enabled fsync on / off support (on is default and recommended)

DoubleTap2Wake, Sweep2Wake, Sweep2Sleep & RGB colour control

CFQ (stock and kernel default), deadline, noop, FIOPS, SIO, Zen, Maple and BFQ support

Westwood (kernel default), bic (stock), cubic, reno, htcp, lia, veno and olia TCP congestion algorithms enabled

9.0 AOSP support

Several kernel optimizations from Notorious Kernel

WireGuard Support

DriveDroid Support

SELinux set to enforcing

F2FS support

Unofficially supported adjustable SELinux status through the 'Magisk SELinux Manager' module or # setenforce 1 or 0

Disabled irrelevant or unused Samsung security and features

Disabled almost all logging, debugging and tracing

Various patches to improve performance and battery

No bull****!

Detailed Overview

The PELT half-life has been reduced from 32ms (stock) to 16ms which greatly improves device responsiveness, alongside the use of updated custom scheduling, both thanks to Andrei Frumusanu’s amazing work on the kernel. For a more up to date reference on the performance of the Exynos 9810, look at Andrei's investigation comparing the Exynos Note 9 to the Snapdragon Note 9.

This kernel supports overclocking. In order to use overclocking, simply flash the OC zip from the Android File Host folder.

The overclock build will now use big cluster (M3) quad / triple frequencies up to 2106MHz, dual frequencies up to 2416MHz and single frequencies up to 2964MHz. The small cluster has now also been overclocked to 2002MHz. The overclock build also modifies Andrei's conservative frequencies in order to utilise the higher frequencies more. There is no guarantee that your battery will perform well with overclocking, nor your device will be safe running above stock frequencies. Use at your own risk.

Notification LED fade support has also been added and enabled by default. The fade can be turned on and off and have fade in and out speed adjusted in EXKM or MTweaks. Additionally, in both EXKM and MTweaks such as fsync on / off support, DoubleTap2Wake, Sweep2Wake, Sweep2Sleep & RGB colour control.

This kernel unofficially supports (but I typically strongly advise against the use of) a permissive SELinux status through the 'Magisk SELinux Manager' module.

GSI / AOSP Kernel

The kernel supports 9.0 AOSP GSIs. These builds are entire ports of Endurance Kernel that have been adapted for AOSP, hence any changes that are made to the base kernel will almost always also be included in the AOSP kernels.

If SafetyNet is failing, this can be worked around to allow SafetyNet to pass. You will need the 'MagiskHideProps' module installed. After rebooting, using a Terminal Emulator app enter the following commands in the order listed without quotation marks.

Type 'su'

Type 'props'

Type '1' to edit the device fingerprint

Type 'f'

Type '13' to select Samsung

Type '24'

Reboot

Due to the sheer diversity of AOSP GSIs, it is important to ensure you are concise when reporting an issue. Before you report an issue ensure you explicitly state the variant of the kernel you are using, as well as the ROM, firmware and vendor once you have ensured the ROM is compatible with the kernel. If these requirements are not met, you may receive support for the wrong platform or no response at all. It is preferred that you ask in the relevant telegram group prior to publishing on the XDA thread if possible.

Telegram Groups

If you're joining the Telegram group for support, please read the FAQ first!

Endurance Kernel Discussion / Support Group - https://t.me/endurancekernel

Endurance Kernel News Channel - https://t.me/endurancekernelnews

Credits

A huge thank you to everyone involved in the production of this kernel. Particularly a few names I would like to mention.

ianmacd - For creating A Pretty Good Kernel and doing all the hard work for me, as well as being a fantastic mentor who has assisted me through every stage of this kernel. My words understate my appreciation for your efforts.

AndreiLux - For pushing the device to its limits in many regards and paving the pathway from which many other devs, myself included rely on, and for assisting me in the production of the kernel.

farovitus - For his vast efforts included in the development of Notorious Kernel and for providing inspiration of changes and commits to include in the kernel as well as making another great kernel before the production of Endurance Kernel. Also thanks for maintaining ELS and keeping it simple for me!

flar2- For his fantastic EXKM app, and all his work from ElementalX included in APGK such as wake / sleep gestures and RGB colour control.

djb77 - For inspiring a few additions to the ramdisk and for being another fellow Aussie.

Freeza - For allowing the use of his installation script and for aiding in the issues faced in the early stages of kernel development.

Chrisaw - For being an exceptionally thorough and generous beta tester and for basically doing the hard troubleshooting for me. I can't say thanks enough for the time and effort you put into the kernel.​

Huge thanks to everyone else who was involved in development of the kernel, and helped me during the stages of instability in the early phases of this kernel. You know who you are!

And of course, everyone involved in mainline Linux development!

Additonally

Lord Boeffla for Boeffla Wakelock Blocker

franciscofranco for fsync on / off support

Ktoonsez for initially introducing Notification LED fade support.

Noxxxious for making it easier to adapt Notification LED fade to the S9!

osm0sis for Android Image Kitchen

If I included your work and forgot you, let me know and I’ll add you to the credits list!

Source - https://github.com/eamo5/crownlte-endurance

Click here to donate! I used to not accept donations but while I'm undertaking my degree, a small donation could go a long way.