** Note: This kernel is end-of-life and will no more be maintained. There will be no LineageOS 15.1 or newer kernel be available anymore **
Hi all,
some of you know me from the Samsung devices area, where I provide my kernels already for more than two years to Galaxy S3 and Note 10.1 users for all sort of platforms (Samsung, Cyanogenmod, Omnirom etc.).
Maybe you also know me from my OnePlus One kernels I added in winter last year to my portfolio.
Finally I got a Samsung Galaxy S5 afew weeks ago and decided to port my kernel also to this device. This is a sponsored device, so I want to say a big thank you to the people that made it possible, namely the ones in the German Smartphone Forum www.hubo.in !!!
Please note:
I am not heading to have as many features as possible implemented, this is not my design goal. If you are more into that, move on to other, good existing kernels. If you are searching for a good mix of improvements and new functions while not sacrificing stability, you are welcome here (see below the history section for more info).
For the Samsung Stock Boeffla-Kernel, please go HERE.
Important notes
When using new anykernel concept Boeffla-Kernel: Flash stock kernel of rom first !
Compatibility
Important: This kernel is only meant to be compatible with official LineageOS/Cyanogenmod and nothing else.
So when the kernel does not run on custom rom XYZ, do not even bother me with it or ask hundred times in the thread for compatibility.
I could not care less about it !!
Support
First read the FAQ section on the Homepage !!!
Click here to learn about all possible kernel settings in the config app.
Click here to learn about using the config app.
I will refuse to give support if you do any undervolting and experience freezes or hot reboots.
I will also not provide any support if you do not use Boeffla-Config app to tweak the kernel, other 3rd party tweaking apps are known (and intended) to cause issues.
I will refuse to give support if you have xposed framework installed and reporting any kind of weird issues. My opinion to xposed it quite clear: too powerful for >90% of the users that just mess up their system with it.
Change logs
(you can also access them directly in Boeffla-Config V2 by pressing menu and selecting "change log...")
Change log for CM14 kernels: CLICK HERE
Change log for CM13 kernels: CLICK HERE
Change log for CM12 kernels: CLICK HERE
Change log for CM11 kernels: CLICK HERE
Features
Support of anykernel concept (only latest kernels) - flash stock kernel before flashing Boeffla
Full integration with Boeffla-Config V2 configuration app (get it from http://www.boeffla.de) to configure all kernel settings
Additional governors: zzmoove (Note: not considered stable at the moment, you might face reboots!!!), intelliactive, intellidemand, wheatley, smartmax, slim, intellimm, nightmare, lionheart, pegasusq
Zzmoove supporting native hotplugging profiles
Additional schedulers: fiops, bfq, sio, tripndroid, zen
Many Hotplug tweak profiles (Default, Optimized, 1 core max, 2 cores max, 3 cores max, 2 cores min, 3 cores min, 4 cores min, 2 cores exact, 3 cores exact)
Wake up gestures implemented (double-tap-to-wake, swipe to wake)
Boeffla-Sound engine (Headphones and speaker volume configurable)
Configurable vnswap
True dynamic FSync (activated if screen on, deactived if screen off), configurable
Touch boost frequency configurable, touch boost switch (all boosts removed by Lineage team in December 2016)
CPU Overclocking up to 2.84 GHz
CPU Voltages interface for undervolting/overvolting
GPU idle frequency 27 Mhz added
GPU governor selection support
Show GPU frequency usage per frequency in Boeffla-Config
Color control to adjust RGB color space + inverted mode
SD card read ahead buffer configurable (default increased to 1024 kB)
Ext4 File system tweaks (default to on, can be disabled)
System Tweaks predefined supported (default is off)
Android logger (logcat) configurable
Kernel logger (dmesg) configurable
Charge rates for AC charger, USB and wireless charging separately configurable (set charge rate to 0 to have stock charge logic back)
Charge information display support via Boeffla-Config V2 app
CIFS support (module, do not mount inside /data)
NFS support (module)
NTFS support (module)
XBox support (module)
OTG-Ethernet support (module)
TCP Congestion changed to Westwood
Swap supported (but not recommended, use zRam instead)
init.d support (in /system/etc/init.d - set correct permissions!)
Default entropies increased
Insecure kernel (adb has root privileges)
Automatic EFS backup
Kernel survival mode by Boeffla-Config app to survive CM rom flashes
Full support for mpdecision for best compatibility and smoothness
(Important: use Boeffla-Config to configure min/max CPU frequencies + governors + schedulers only - or explicitely allow other apps/processes to overwrite this in Boeffla-Config settings, but expect weird side effects)
Integrated full busybox 1.23.1 (own compilation)
Auto-Root by kernel possible by request, not recommended for CM however (latest su included)
Kernel initialisation log file (with history of 3 log files)
Emergency reset script automatically placed into /boeffla-kernel-data folder of your internal memory
Presets supported in Boeffla-Config by kernel (Extreme power, power, normal, battery friendly and battery saving)
Google gcc 4.8 toolchain used for best stability
Always using latest Initramfs
Always based on latest Galaxy S5 sm-g900f kernel sources by CM
Kernel runs with SELinux enforcing by default, just as CM12 stock kernel for S5 - but can be configured to work in permissive mode in Boeffla-Config settings
Note: I do NOT upstream the kernel to higher Linux kernel versions anymore as this usually has zero benefit but likely introduces new issues + is a waste of effort in the end
Download
For all information and downloads (stable AND testing versions), visit the Boeffla-Kernel homepage:
www.boeffla.de
History and design targets
Basically I created my first Boeffla-Kernel in 2012 as there was no kernel for the Samsung Galaxy S3 around that had exactly the mix of functionalities that I wanted. I wanted to have full flexibility in undervolting and charge rates for instance, but did not like the sharpness and/or brightness tweaks many kernels have implemented as per default.
Hence, I began to create my own kernel after a while, adding all the features I like. This is the result of my work, which in the end I decided to share with you. I hope you like it as much as I do.
The objective of this kernel is to have a kernel for daily use. It does not aim for best battery life, or best smoothness or best benchmark scores. Also it does not aim to have the broadest feature set available everywhere.
It aims more for a good mix of all, not sacrificing stability and functionality in the end.
And - most important: It aims to stay quite close to stock !!!
These design targets are also valid for the Galaxy S5 kernel here!!!
This said, I will definitely NEVER implement:
things I do personally not need
things I do not like
things that are in any way dangerous
anything which is highly experimental
f2fs - it is known to cause various issues and compatibility problems
a CAF based kernel
anything that requires upstreaming of kernel parts to a higher kernel major version
So do not even ask for it if it falls into the listed categories. Everything else I am happy to check and decide.
And: I do not really care about benchmark numbers, they say almost nothing as long as something is not completely wrong. Important for me is the feel-good factor.
I am also not interested in gaming at all, so never expect a gamer kernel. It will just not happen...
Compatibility
To reiterate it again: Flash the correct kernel depending on whether you are on Samsung Stock, CM12 or CM11 !!!
Configuration of the kernel
To tweak and configure the kernel, manually load and install the app "Boeffla-Config V2" from the downloads section on www.boeffla.de.
You need at least version 2.1.72 or higher for the Galaxy S5 Boeffla Kernels.
Donation
If you like my work, feel free to donate: Donation-Link
If you donate at least 2,49 EUR (to be in line with the donation app prices on Google Play store), you will receive a personal donation code which unlocks some nice little comfort functions in Boeffla-Config V2 on top.
Source code
All sources can be found in my Github repository: http://github.com/andip71
Credits to developers
Of course, I had never been able to create all that by my own. So I want to give credits to the really good developers around, that have given me all the inspiration and from which I cherry picked lots of the implemented functionalities:
* ZaneZam
* Yank555
* ktoonsez
* Hardcore
* Chainfire
* AndreiLux
* Netarchy
* Gokhanmoral
* Entropy512
* Faux
* Ak
... I just hope I did not forget someone. If so, please let me know and I will add you of course.
Thanks to all of you for your great work !!!
Disclaimer
*** As always - Flash on our own risk! ***
Make sure you flash the correct version depending on your firmware version!
I can and will not take any responsibility for bricked phones or lost data.
It is generally recommended to run a complete Nandroid backup in your custom recovery and safely store your personal data before you flash a new kernel.
Cheers and enjoy
Andi
Latest change logs:
LineageOS 14.1
http://kernel.boeffla.de/sgs5/boeffla-kernel-cm/cm14.0/changelog.htm
CM13.0
http://kernel.boeffla.de/sgs5/boeffla-kernel-cm/cm13.0/changelog.htm
Configuration and profile thread
http://forum.xda-developers.com/galaxy-s5/general/unofficial-boeffla-kernel-profile-t3139530
*** You want my support? Then stick to my rules ***
Guys, I am receiving more and more completely useless support requests in different threads. Useless because people provide nothing to be able to help, not even the minimal possible information they could give.
Hence, I will now remind anyone again on the support guide lines stated here:
http://boeffla.de/index.php/support/support
Also you need to ensure you follow the installation guide lines incl. trouble-shooting stated here:
http://boeffla.de/index.php/support/installation-how-to
And to cut a long story short: If you do not at least provide what I request in the support guide lines, I will IGNORE YOUR REQUESTS IN FUTURE.
Straight and simple. I have enough of people wasting my time just because they are too lazy to write details.
Period.
Also as a reminder:
you use xposed? -> no support, everything is your own issue
you use a custom rom and not the official stock or CM one? -> good luck, you are on your own
you undervolt or overclock? -> have fun, but without my support
Sorry, this might sound harsh (and it is meant to sound harsh), but you cannot imagine about how crappy support requests can be. Stating something does not work is just not enough.
Please consider that!!!
Andi
Hi all,
Great kernel
Works very fine
Check this out..
Thanxxxx to the Lord for the hard work in the last week's
Now i love my S5 G900F
[emoji7]
Ive installed on Teamsek CM12 v9.0 and geting self reboot ...
Im waiting for new ver. Always big fan of your krenels
gravis_jg said:
Ive installed on Teamsek CM12 v9.0 and geting self reboot ...
Im waiting for new ver. Always big fan of your krenels
Click to expand...
Click to collapse
Cannot comment for Temasek, as written.. it is for official CM12. And it is only tested by me with official CM12.
If it runs with Temasek - fine. If not, you need to search why it reboots for you. Then Temasek seems not 100% compatible.
Andi
Flashed fine on AICP.
Only heard good things about your kernel!
superleeds27 said:
Flashed fine on AICP.
Only heard good things about your kernel!
Click to expand...
Click to collapse
Thanks.
But also let's be realistic. It is version 1.0-beta1. So for sure some more way to go
Andi
@Lord Boeffla
Hi Andi, a big neverending thanks for providing us with an S5 (G900F/klte) kernel.
Coming from my i9300 which ran the whole time with your wellknown and imho best kernel for the i9300 I am familiar with your fine app and highly appreciate your new work for the S5.
And btw: Due to so far not working TRDS for LP/cm12 I still run kitkat for s5 (same with my i9300) using FusionRom which is mostly based on cm11.
Now with Boeffla-cm11 for G900F based on FusionRom 4.4.4 I feel happy again - fast-stable-easy to handle 1A+++
gravis_jg said:
Ive installed on Teamsek CM12 v9.0 and geting self reboot ...
Im waiting for new ver. Always big fan of your krenels
Click to expand...
Click to collapse
Quick question: Are you coming from another custom kernel?
It might be, some cleanup work is required first.
Just had a user that came from KT kernel and he had to deinstall the two KT apps manually, wipe dalvik and cache. Then it started working.
Andi
CM12 kernel seems to work fine on bliss-pop. At least so far. ?
vulfgar said:
CM12 kernel seems to work fine on bliss-pop. At least so far. ?
Click to expand...
Click to collapse
Fingers crossed it will stay like that
Andi
Lord Boeffla said:
Fingers crossed it will stay like that
Andi
Click to expand...
Click to collapse
Me too. If not I'll have to change rom.
Lord Boeffla said:
Fingers crossed it will stay like that
Andi
Click to expand...
Click to collapse
Just to be tested, my friend thanks for everything
Lord Boeffla said:
Quick question: Are you coming from another custom kernel?
It might be, some cleanup work is required first.
Just had a user that came from KT kernel and he had to deinstall the two KT apps manually, wipe dalvik and cache. Then it started working.
Andi
Click to expand...
Click to collapse
I was the user
You must delete in root/system/app/com.ktoonsez.KTmonitor.apk and com.ktoonsez.KTweaker.apk.
Additionally, in Int SDcard the KTKernel Folder with profiles and scripts.
First, install the Boeffla Config, then go into recovery and flash the kernel. Wipe cash and Dalvik and reboot.
For Viper4android user, first deactivate Viper4Android or use the Beoffla Kernel without Boeffla sound settings.
Sorry for my bad English, with this kernel for lollipop tw viper4android work or not? Now i have flashed this kernel and boeffla apk
gravis_jg said:
Ive installed on Teamsek CM12 v9.0 and geting self reboot ...
Im waiting for new ver. Always big fan of your krenels
Click to expand...
Click to collapse
Hi, I've tested the kernel on Temasek and on a few different Rome.
Bliss Pop Rome, Fusion, Darko ... CM12 unofficial
It's like Horsti G says everything must be deleted from the kernel KT otherwise there are problems. but I have only the KT monitor at run without problems
Especially on the Temasek Rome had 2 people tested the kernel for quite some time without any problems.
Unfortunately the support for other roms is not possible because there are always errors and differences with other roms.
a Idde would make a thread for all other roms. since one could then afford support?
@ cranio84
For Viper4android user, first deactivate Viper4Android or use the Beoffla Kernel without Boeffla sound settings.
sorry for the translation with the googel translator
kind regards
Jakkomo 77
Ok i deactive boeffla sound setting, but where is a guide to install viper4android, because I have tried with more kernel on tw rom and don't work
For sure there are specialised threads for viper4android.
But wrong in this thread to discuss that...
Andi
Ok, i discute un this 3d because your kernel is correlate for me
I have never rooted it or touched my g850 's kernel, it is 5.0.2 lollipop and kernel version is 3.10.9-8213318.
I want to benchmark performance and power consumption on exynos5430 with HMP scheduler and Energy Aware Scheduler.
I have 2 questions about that.
Is my g850's kernel include HMP scheduler(Global task scheduler)? I mean, does it applied on my kernel and my g850's processor is running with HMP Scheduler without any configuration?
And, If I want to install 3.18 kernel which include Energy Aware Scheduler, what kind of defconfig i have to use?
I checked arch/arm/config, but there are only arm's fundamental defconfig files.(like acs5k, armadillo, exynos, versatile .... etc)
Is there any defconfig for g850? or can I use 5430-base_defconfig(I can't paste link here)?
I've been built kernel for linux, but I'm new to android, so I wish you guys help me for this...
I have never rooted it or touched my g850 's kernel, it is 5.0.2 lollipop and kernel version is 3.10.9-8213318.
I want to benchmark performance and power consumption on exynos5430 with HMP scheduler and Energy Aware Scheduler.
I have questions about this.
Is my g850's kernel include HMP scheduler(Global task scheduler)? I mean, does it applied on my kernel and my g850's processor is running with HMP Scheduler without any configuration?
And, If I want to compile 3.18 kernel which include Energy Aware Scheduler, what kind of defconfig do I have to use?
I checked arch/arm/config, but there are only arm's fundamental defconfig files.(like acs5k, armadillo, exynos, versatile .... etc)
Is there any defconfig for g850? or can I use 5430-base_defconfig(I can't paste link here)?
If I compiled 3.18 kernel, How can I install it on my device? I tried to unpack original rom and change kernel image, but it's md5 file, so I dunno how to. Is there any ONE SIMPLE WAY to just install my zimage on my device? or appropriate guide to install it on g850. I found bunch of guides on google, but most of the uses nexus.
I'm so desperate to do this, I wish I can get an answer here. Thanks
My question is, whats the best android version to use to get the best performance, speed and fluidity with aosp roms like CM ?
4.4.4
5.1.1
6.0.1
There's more to it than mere version. CPU governors in the kernel for instance. It all depends on battery life. Personally I'd only use MM or N. Afterwards install a custom kernel and tweak the governor.
The only reason why roms are generally sluggish on this phone are due to the governors and lack of overclocking by default.
--
For example on an S2, I had tried two different CM 13 version's. One lagged like hell, the other was swift as anything. One was compiled with Uber, one was compiled with linaro. The kernel presets probably differed too.
I have had this phone a year now and seems to get slower and slower. I used to be able to download kernels to overclock other phones in the past. Is this possible with this phone?
sactownie said:
I have had this phone a year now and seems to get slower and slower. I used to be able to download kernels to overclock other phones in the past. Is this possible with this phone?
Click to expand...
Click to collapse
You can flash a custom kernel for this phone too if someone has made it. A custom kernel will always be better then the stock. After flashing a custom kernel or you can use stock one, install a kernel manager (I like smart pack) and set CPU BIG and SMALL CLUSTERS to highest frequencies and set the scailing_governor to performance. GPU increse frequencies to max and set governor if you can to performance. Disable SE LINUX (only if you know what you are doing)
These may help:
[REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs
Reorganized overflowing Posts to fit into 5 Posts. [Feb 3] Most of us are flash maniacs, and we do it a lot. But after a kernel flash, we wonder: Q1. "OK i have flashed this xyz kernel. What're all these governors? How do i know which one is...
forum.xda-developers.com
LKT ? legendary.kernel.tweaks - Advanced Governor & Kernel Tweaks
High performance & power saving tweaks for all devices (THAT ACTUALLY WORK) Introduction LKT is a cumilation of different strategies that target certain kernel settings. What makes this special and stand out from the crowd is being universal and...
forum.xda-developers.com
LAST_krypton said:
You can flash a custom kernel for this phone too if someone has made it. A custom kernel will always be better then the stock. After flashing a custom kernel or you can use stock one, install a kernel manager (I like smart pack) and set CPU BIG and SMALL CLUSTERS to highest frequencies and set the scailing_governor to performance. GPU increse frequencies to max and set governor if you can to performance. Disable SE LINUX (only if you know what you are doing)
These may help:
[REF][TWEAKS] Kernel Governors, Modules, I/O Schedulers, CPU Tweaks, AIO App Configs
Reorganized overflowing Posts to fit into 5 Posts. [Feb 3] Most of us are flash maniacs, and we do it a lot. But after a kernel flash, we wonder: Q1. "OK i have flashed this xyz kernel. What're all these governors? How do i know which one is...
forum.xda-developers.com
LKT ? legendary.kernel.tweaks - Advanced Governor & Kernel Tweaks
High performance & power saving tweaks for all devices (THAT ACTUALLY WORK) Introduction LKT is a cumilation of different strategies that target certain kernel settings. What makes this special and stand out from the crowd is being universal and...
forum.xda-developers.com
Click to expand...
Click to collapse
Thanks for the info, I have installed smart pack and tweeked some settings, phone seems a lot snappier now.