yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 i9505 Android Development] megaequs:
I get better battery life by usig Imperium Kernel v1.9 instead of v2.9 with the same settings in STweaks
[Galaxy S 4 i9505 Android Development] Federacion:
Interesting. Can you give an example of how life much better?
[Galaxy S 4 i9505 Android Development] droidblitz:
To be honest

I get 4hrs screentime to whatever version of imperium kernel.

Thats with 80% playingnclash of clans.

To be honest every version slim80 releases i apply my settings giving me less heat + 4hrs guaranteed ( heavy gaming )

I even got 6hrs screentime ( light usagr minimal txt and calls and emails )

with stock battery when I was using lollirom + imperium kernel ( can't remember what version )

But the lollirom was still on HOE4 Base I believe.

So to sum it up. Every version of imperium kernel is already awesome. Balanced to battery life and performance.

And it will always falls down to how you use your phone as a daily usage. :D
[Galaxy S 4 i9505 Android Development] megaequs:
I have tested the old Imperium Kernel v1.9 on some Roms, and it always gives me around 3,5h-4,5h SOT on every tested Rom.

I have tested it on PhoenixRom 11.6, Albes S6 Port v4.6, Ultra Aurora Port by Roll and Pop-Wiz Plus Rom. And alway the battery life was better when I flashed Imperium v1.9.

Can someone confirm this?
[Galaxy S 4 i9505 Android Development] droidblitz:
Have you modified the kernel settings or run it with default preset ones?
[Galaxy S 4 i9505 Android Development] megaequs:
I use the following settings in STweaks:

CPU:

SCHED_MC: "2"

CPU-governor: "intellimm"

Max Freq: 1458 MHz

Min Freq: 384 MHz

GPU:

GPU-governor: "Simple"

Max Freq: 320 MHz

I/O:

Internal Scheduler: "sio" "1024 kB"

SD-Card Scheduler: "sio" "1024 kB"

MISC:

Android Logger: "Off"

ZRAM: "Off"

TCP Congestion Control Mode: "Westwood"

Power-Saving-Mode is no more nessesary
[Galaxy S 4 i9505 Android Development] droidblitz:
========================

Thats why you get those results.

Intellimm = always be in lowest freq as possible

Max cpu = 1.4mhz

:D
[Galaxy S 4 i9505 Android Development] Federacion:
So you think with these settings we can enjoy even better battery stamina? Don't you think that is going to effect performance?

---------- Post added at 04:16 PM ---------- Previous post was at 04:10 PM ----------

Where is zram at Stweaks? I can't find it.
[Galaxy S 4 i9505 Android Development] droidblitz:
Just try it and see if you like the performance...

Intellimm = tends to be on the low freq most of time. So you will notice a slow down on opening apps etc...

You can google it up what intellimm do to you cpu freq.

v1.9 there is zRam

v2.9 no zRam

---------- Post added at 02:50 PM ---------- Previous post was at 02:37 PM ----------

@megaequs what rom are you using now and what modem are you using HOH2 or OJ2?
[Galaxy S 4 i9505 Android Development] fabix95:
What modem you suggest?
[Galaxy S 4 i9505 Android Development] Fonsocruise:
Any idea why the percentage goes down so quickly between 100 and 90%? I'm using the 1.9 and it's calibrated it. I get 3-4h of screen but it's freaking me out that it drops so fast at the beginning
[Galaxy S 4 i9505 Android Development] lawyer_06:
To give an answer to your question, we should know some infos about your battery:

1- How old is your battery?

2- Have you ever calibrated your battery?

3- What's your average battery life on your current ROM and on another ROMs?

4- Did you wait a few days (untill the Kernel settled down) after flashing the Kernel?

5- How is your average battery consumption percent, except the first 10%?
[Galaxy S 4 i9505 Android Development] Fonsocruise:
My battery isn't older than a year. Yup I've calibrated my battery. My average battery life is totally better with the Phoenix rom I'm currently using than with the rest like 3-4h screen. I haven't waited too much after flashing the kernel...and my consumption percent after that 10% is good.

---------- Post added at 07:24 PM ---------- Previous post was at 07:21 PM ----------

Btw...my gps suddenly stopped working in these last couple weeks and I've tried to use Faster fix gps and gps tools to reset it and it's not working...do you guys have an idea of what's going on? It keeps searching sattelites all the time...it's so annoying..cuz I use the gps a lot

Edited: gps thing fixed....just doing a factory reset
[Galaxy S 4 i9505 Android Development] Federacion:
I have a 3 year stock battery and the same issue at all kernels.
[Galaxy S 4 i9505 Android Development] rabbo3:
can you add overclock gpu and cpu ?great kernel
[Galaxy S 4 i9505 Android Development] lawyer_06:
If the first 10% consumption speed is same on every ROM (and on stock ROM) and if you have calibrated your battery, then it means the fast consumption of first 10% is the "characteristic feature" of your battery. The consumption speed of first 10% is also depends on what you are running in your phone while that percents. If the remain percents' speed are normal and if you are getting a satisfied battery life in total, then don't care the first 10%. :)

Lastly, i suggest to flash a Kernel Cleaning Script before flashing a new Kernel to get rid of the remains of the previous Kernel. And i also suggest to wait at least 2-3 days in order to make some battery consumption cycles after flashing a new Kernel to obtain healthy battery stats.
[Galaxy S 4 i9505 Android Development] megaequs:
[MENTION=6753882]droidblitz[/MENTION]

At the moment I am using albe95 s6 port v4.6. OF2 Modem, Imperium Kernel v1.9.
[Galaxy S 4 i9505 Android Development] droidblitz:
I tried your 1.9 settings to note 5 port since i have a backup on it. But it lags as hell when opening coc app and quicklu switching to another app like sms app and tapatalk.

I flashed back slimsaber aosp rpm just to test something.

Im planning to flash s6 port probably next week.
[Galaxy S 4 i9505 Android Development] megaequs:
No lag here with my settings. You have to turn off the power saving mode, to prevent lag.

Albes s6 full port v4.6 is a great choice, it is perfectly as daily driver and very smooth and fast. You won't regret this.
[Galaxy S 4 i9505 Android Development] Federacion:
Undestood but give or take it would cost on battery, right?

Or is it without any cost?

I am testing today your settings.
[Galaxy S 4 i9505 Android Development] droidblitz:
I have turned it off.

Yes i know because i have used intellimm with imperium and lollirom.

It will definitely consume less battery because of the nature of intellimm. :D

Edit

No lag when no gaming.

Lag when multitasking switching between apps

Ui lag

Ui opening apps

:D

But when using phone normally like sms call emails browsing fb and other light websites, intellimm works perfect :D
[Galaxy S 4 i9505 Android Development] paddy01:
STweak stuck on 'Loading...'

delete - plz
[Galaxy S 4 i9505 Android Development] fanion:
[MENTION=4543502]slim80[/MENTION]

CAN I USE DUALBOOT WITH YOUR KERNEL ?
[Galaxy S 4 i9505 Android Development] nicolapit:
Yes
[Galaxy S 4 i9505 Android Development] Federacion:
Well finished yesterday with 4:21 screen time on stock battery and intelimm settings.

I think this is f...ing amazing!!!

Thank you.
[Galaxy S 4 i9505 Android Development] droidblitz:
Nice.
[Galaxy S 4 i9505 Android Development] Federacion:
Unfortunately I have now less phone signal at my work place. Could be this be kernel related issue? (I really don't think so-.....)
[Galaxy S 4 i9505 Android Development] Federacion:
Well I think it's an undervolting issue. Testing tomorrow and updating.
[Galaxy S 4 i9505 Android Development] stevtec86:
I'm on V2.9....when i using GPS with Navigon Navigator o other navigator, the battery go down fast ( 35-45% in 2hours With power saving mode active).

Some tips to set kernel for good performance +Battery friendly?

i use this:

freq-- 383-1890mhz

Governor cpu-- ondemand plus

I/o-- both Sioplus

Read and write-- both 2048

The other setting are stock/Default

Inviato dal mio GT-I9505 utilizzando Tapatalk
[Galaxy S 4 i9505 Android Development] cdzo72:
What do you expect? Surely you can't expect good battery life while using any navigation app and GPS
[Galaxy S 4 i9505 Android Development] droidblitz:
I undervolt eversince i use imperium kernel.

No such issues.
[Galaxy S 4 i9505 Android Development] Federacion:
That's true. But you can manage to save some juice, with a little undervolt.

Well, tested today, just got off work, it is an undevolting issue.

I get better reception when voltages are higher up.
[Galaxy S 4 i9505 Android Development] droidblitz:
Well i cant really tell. Since i always get full bars on 2g/3g/ and half with LTE. :D

Despite of having my zerolemon battery blocking my antennas.
[Galaxy S 4 i9505 Android Development] Federacion:
Well we never have 4g with Vodafone here in Greece anyway and I work underground so there is a difference here.
[Galaxy S 4 i9505 Android Development] slim80:
Imperium LL Kernel v3.0 online.
[Galaxy S 4 i9505 Android Development] pitelasssss:
Testing
[Galaxy S 4 i9505 Android Development] Federacion:
Remind me please first clean script then I flash the kernel?
[Galaxy S 4 i9505 Android Development] petre22:
The best kernel !!!!!
[Galaxy S 4 i9505 Android Development] pitelasssss:
Best kernel / best rom

Thanks !!!!!
[Galaxy S 4 i9505 Android Development] mikehorizon:
Init.d support

In OP it is said init.d support.

I use version 1.3 with Imperium ROM V3.0 but the scripts (with correct 755 permissions) in system/etc/init.d are not executed.

I'm missing something?
[Galaxy S 4 i9505 Android Development] radz_:
No need to delete Stweaks... i have Faux app and Stweaks..

Im not using Lollipop ROM right now, lollipop is too hungry of battery and RAM.. UI and performance is nice but you will get poor battery and high ram usage...

Im still using Emperium 16.1 4.4.2 ROM..
[Galaxy S 4 i9505 Android Development] Calaisz17:
i find ram fine once remove the bloat and samsung apps. but yeah chrome fb etc using over 500mb is not on.
[Galaxy S 4 i9505 Android Development] eum1r:
i think your wrong mate.. even on my stock OB7 lollipop i9505 battery life is great and better compare to KK 4.4.2 me and other s4 user from phil noticed that too... :D

[MENTION=225651]op[/MENTION] i think this kernel is nice.. my settings are loinheart,fiops,fiops.. anyone else want to share their settings? my settings is balance in bat and performance,the best combination for me so far... :)
[Galaxy S 4 i9505 Android Development] radz_:
Good for you then..

Maybe my phone is not campatible for lollipop?lol

Im happy with 4.4.2 for now...
[Galaxy S 4 i9505 Android Development] Ricardo_Is:
After two days using this awesome kernel everything was going good but after a reboot my device stuck on bootloop.

I didn't install any mod or change anything in system so I don't know why this happened.

XXUHOB7 stock odexed.
[Galaxy S 4 i9505 Android Development] stevtec86:
Guys I have this problem since V1: when I put in charge the phone and turn off the display (deepsleep), after about half an hour and relight the screen and unlock the lockscreen, this is freezes for about 5 seconds and then unlock ..and only when in charging
[Galaxy S 4 i9505 Android Development] lgsshedden:
just wondering what mix of governor + scheduler you settled upon -- appreciate you sharing your experiences as I'm new to this kernel and I like it a lot but still experimenting with settings -- like a fast phone but not with total disregard to battery!
[Galaxy S 4 i9505 Android Development] Impact7:
I use smartmax with row and 2048 readahead.

It runs with almost no lags and battery life is between 3-4h screen on with LTE.
[Galaxy S 4 i9505 Android Development] BuLLeT_93:
Lionheart + FIOPS is my favourite choice.

Zero lag, fast opening apps, and super battery life with media of 16-22h on and 4-4:30h screen on time .
[Galaxy S 4 i9505 Android Development] stevtec86:
Nobody have this problem during charge?
[Galaxy S 4 i9505 Android Development] BuLLeT_93:
Try to change charger, usb cable and ac adapter.

This happened to me with S3, changed charger and worked fine for me.
[Galaxy S 4 i9505 Android Development] edzamber:
Yep, same here and i try differents kernels like Hulk, Hybridmax, AEL... Only with Lollipop 5.0.1, not 4.4.2 so its a Lollipop related issue, not câble or charger.
[Galaxy S 4 i9505 Android Development] devilyuri:
Does it support swap?
[Galaxy S 4 i9505 Android Development] raffmann:
Can you guys post the settings that give you the best battery life but also good performance?
[Galaxy S 4 i9505 Android Development] BuLLeT_93:
Lionheart + FIOPS, this kernel is awesome.
[Galaxy S 4 i9505 Android Development] gladiamos:
Hello BuLLeT_93 do you use mobile data during the day or only wifi ?
[Galaxy S 4 i9505 Android Development] BuLLeT_93:
Hi, i use both connection, data at work and wifi at home, but i don't use 4G, eat a lot of battery.

Using Greenify to hibernate Facebook, Messenger and XDA.
[Galaxy S 4 i9505 Android Development] BuLLeT_93:
Hi slim,if possible can you add TripNdroid IO scheduler in next update?

I've tried this and is veryyyy very smooth compared to FIOPS that i actually use.
[Galaxy S 4 i9505 Android Development] erghetto:
Very very good kernel :D

One request, if possible.. could you add Gpu overclock in next release?

Maybe we could gain something in games like gt raacing 2 (very heavy)

If not.. well no problem.. i'll use it however xD
[Galaxy S 4 i9505 Android Development] jeffrey1296:
If there is anything as important as the rom, its the kernel, good stuff.
[Galaxy S 4 i9505 Android Development] Federacion:
Testing today thanks a lot!
[Galaxy S 4 i9505 Android Development] fanion:
please can anyone share some tweaks for battery life for this kernel

like undervolting and governor and read_ahead
[Galaxy S 4 i9505 Android Development] a103:
If you search you'll find the tweaks shared by [MENTION=6753882]droidblitz[/MENTION]

Thank him for that.
[Galaxy S 4 i9505 Android Development] cawa5:
How I can disable ZRAM?
[Galaxy S 4 i9505 Android Development] Federacion:
ΖRAM is off at this version of the kernel, dont worry about it.
[Galaxy S 4 i9505 Android Development] droidblitz:
TRY this :D

Here is my KERNEL SETTINGS

One more thing to add on my kernel settings is to underclock it to 1.3Mhz or turn on POWER SAVING MODE that will underclock it also to 1.3Mhz.

And if you experience some random reboots, increase the voltage of each freq with 1 slide up each freq.

And i was playing with a couple of CPU GOV lately and by using intellimm ( not underclocked ) i did get a slight higher Screentime ( i think it was around 4hrs 30mins ) but everything was kinda of somewhat sluggish ( its okay if you dont multitask that much )

and here is my battery stat when it hit 4hrs screen time

take not that with this set of screenshots i was actually playing clash of clans.

other than those settings, i use greenify.

Enjoy :D
[Galaxy S 4 i9505 Android Development] fanion:
:good: use it and try

thanks
[Galaxy S 4 i9505 Android Development] droidblitz:
Your welcome. Enjoy it.

With my zerolemon 7500mah i can get 15-17hrs screen time. :D
[Galaxy S 4 i9505 Android Development] kfallz:
3.0 kills my back button :( Everything else seems to be fine though. Flashing 2.9 over it makes back button work again, no changes in between.
[Galaxy S 4 i9505 Android Development] fanatico96:
This settings are great. Thanks for this!
[Galaxy S 4 i9505 Android Development] slim80:
Which ROM do you use?
[Galaxy S 4 i9505 Android Development] dave_p_b:
Both back and menu (soft) buttons stopped working after flash to v3.0.

I'm on Imperium 11 rom and used the kernel cleaning script in the OP before kernel flash. Back to v2.9 and all back to normal.
[Galaxy S 4 i9505 Android Development] cawa5:
It's swap?
[Galaxy S 4 i9505 Android Development] gc_geforce:
I was having issues with v3.0 work n5 port albe95 and had to go back to v2.9 with no issues at all. Apps would freeze and stop for no reason. But all is good with v2.9
[Galaxy S 4 i9505 Android Development] oneheart1975:
Running 3.0 with N5 port for 2 days with no issues found. I have underclock and undervolt as I don't do gamings. No app freeze whatsoever.
[Galaxy S 4 i9505 Android Development] muhammedali:
ONEHEART1975 please share your kernel settings thank you very much
[Galaxy S 4 i9505 Android Development] droidblitz:
Enjoy it :D
[Galaxy S 4 i9505 Android Development] eejee:
Me too. Using imperium 11 and reverted to kernel version 2.9. Also had this issue a few times a few months ago with imperium kernel and rom, but I don't remember which versions. Maybe the kernel version has to coincide with the firmware version.

Verstuurd vanaf mijn SM-T800 met Tapatalk
[Galaxy S 4 i9505 Android Development] esepedazogsi:
Hi guys,

Imperium v. 3.0 installed and working without problems. It goes fast, smooth, no issue. Thanks [MENTION=4543502]slim80[/MENTION] for the new update :)

Regards
[Galaxy S 4 i9505 Android Development] kfallz:
Imperium 11 like the others that also had the problem here, menu button worked for me though I'm pretty sure
[Galaxy S 4 i9505 Android Development] Red89:
For me work, i use lolliROM v6, good work [MENTION=4543502]slim80[/MENTION] ?

EDIT:

I have a question, sweep2sleep work with this imperium kernel?

-|Tapatalk-Galaxy S4|-
[Galaxy S 4 i9505 Android Development] Federacion:
Had a random reboot so I pinched 1 scale up at undervolting.

Running at 1.3 with energy saver off.

Testing once again.
[Galaxy S 4 i9505 Android Development] droidblitz:
When you underclock to 1.3mhz its the same thing.

Its like your on power saving mode on.
[Galaxy S 4 i9505 Android Development] Federacion:
Yes you have stated so at your initial post. I just mentioned it to be clear.

What about random reboot, did it ever happened to you with these settings?

Thanks for all your help.
[Galaxy S 4 i9505 Android Development] droidblitz:
If youre not planning to use power saving mode its better if you use intellimm cpu gov because it will always stay on the lowest freq as much as possible.

Yup had some random reboots once in a while. Thats why i adjusted the voltage 1 slide up.
[Galaxy S 4 i9505 Android Development] Federacion:
Well changing right away.

Too bad it feels much more responsive with on demand governor.
[Galaxy S 4 i9505 Android Development] droidblitz:
You can try them both and see what suits you better ( base on your usage ) :D
[Galaxy S 4 i9505 Android Development] oneheart1975:
I only underclock to 1.6MHz and undervolt all freq to one step down. Untick data logger. That's just it.
[Galaxy S 4 i9505 Android Development] muhammedali:
ONEHEART1975 many thanks will give it a try n report back much appreciated.
[Galaxy S 4 i9505 Android Development] droidblitz:
My KERNEL SETTINGS using Imperium kernel 3.0

I have been using this KERNEL settings way back when i first got this used SGS4 that i bought just for playing COC.

This settings gave me the following experience.

1. My SGS4 doesn't heat up fast.

2. Steady battery drain while playing COC.

3. IMO it gave me BALANCE Performance and battery standby

4. Gave me better results ( while playing ) thats why im sharing it.

KERNEL SETTINGS:

CPU CONTROL:

SCHED_MC = 0

WHY 0? Because it feels like mt SGS4 heats up way faster when i set it to 2

CPU GOV:

For playing COC i use ONDEMAND.

If NOT playing COC or not doing any heavy MULTITASKING i use INTELLImm ( lowest freq as possible )

CPU UNDERVOLT:

For each frequency

4 slides down.

For more explanation why UNDERVOLT please go here >> http://xdaforums.com/showpost.php?p=61891946&postcount=2

CPUVOLT15=850000

CPUVOLT14=850000

CPUVOLT13=850000

CPUVOLT12=850000

CPUVOLT11=862500

CPUVOLT10=875000

CPUVOLT9=900000

CPUVOLT8=925000

CPUVOLT7=937500

CPUVOLT6=962500

CPUVOLT5=1000000

CPUVOLT4=1025000

CPUVOLT3=1062500

CPUVOLT2=1112500

CPUVOLT1=1162500

HOTPLUG:

IntelliPLug

PROFILE:

Balanced

TOUCH BOOST:

Disabled

CPU MAX SCREEN OFF FREQ: ( OPTIONAL )

702000 ( you can change it if you want )

MSM THERMAL ( OPTIONAL )

MAX CORE HEAT: 65 C

CPU MAX HEAT: 60 C

CPU MAX HEAT: 5 C

GPU GOV: SIMPLE

GPU MAX FREQ: 320MHZ ( OPTIONAL )

GPU VOLTAGE: 1 slide down each level 920000uV 1025000 uV 1150000 uV

I/O SETTINGS ( OPTIONAL )

I use FIOPS.

THOSE THAT ARE NOT MENTIONED ABOVE IS SET TO DEFAULT.
[Galaxy S 4 i9505 Android Development] mohseen khan:
Before u posted this kernel setting..

sched_mc_power_savings=0

scaling_governor_cpu0=ondemand

scaling_max_freq=1890000

scaling_min_freq=384000

CPUVOLT15=850000

CPUVOLT14=850000

CPUVOLT13=850000

CPUVOLT12=850000

CPUVOLT11=862500

CPUVOLT10=875000

CPUVOLT9=900000

CPUVOLT8=925000

CPUVOLT7=937500

CPUVOLT6=962500

CPUVOLT5=1000000

CPUVOLT4=1025000

CPUVOLT3=1062500

CPUVOLT2=1112500

CPUVOLT1=1162500

hotplug=1

nr_run_profile_sel=2

touch_boost_active=0

nr_run_hysteresis=4

screen_off_max=702000

msm_thermal=intelli_temp

core_control=0

core_mask=2

core_limit_temp_degC=64

limit_temp_degC=61

temp_hysteresis_degC=5

governor=simple

max_gpuclk=320000000

GPUVOLT3=1125000

GPUVOLT2=1025000

GPUVOLT1=920000

int_scheduler=sio

int_read_ahead_kb=128

ext_scheduler=sio

ext_read_ahead_kb=256

force_fast_charge=0

use_mtp_during_fast_charge=1

screen_on_current_limit=1

usb_charge_level=460

ac_charge_level=1000

led_lowpower_current=40

led_highpower_current=40

led_fade_in_time=1

led_fade_out_time=4

led_fade=on

led_fade_dt1=1

led_fade_dt2=1

led_fade_dt3=2

led_fade_dt4=3

gamma_r=60

gamma_g=60

gamma_b=60

gpl_cam_mic_gain=40

gpl_mic_gain=40

gpl_headphone_gain=40

gpl_headphone_pa_gain=12

gpl_headset_mic_gain=40

gpl_hdmi_spkr_gain=40

gpl_speaker_gain=40

logger_mode=off

swappiness=130

dirty_background_ratio=5

dirty_ratio=20

vfs_cache_pressure=100

dirty_expire_centisecs=200

dirty_writeback_centisecs=500

sweep2wake=off

pwm_value=50

tcp_congestion_control=westwood

And now in Image ( http://imgur.com/a/tnPzR ) its diffrent and not complete Kernel setting...
[Galaxy S 4 i9505 Android Development] droidblitz:
Does it really matter ?

And yes they are two different kernel settings. Have you asked yourself why?

Maybe its because the day i posted those settings is the day im actually trying out 2 diffent setup ( i/o scheduler )

But my key points for my kernel settings ( posted below on my signature )

Is the cpu/gpu freq undervolt and intelliplug. With that settings cpu heat dramatically stayed between 45-55°C even while charging. And the battery drain is not that crazy fast.

The rest in just plain trial and error.

Which ever setup that gives me better screentime and standby im sticking to it. ( balance between performance and battery durations )

I have kept my kernel settings in my signature for a reason obviously mate. Because that one gave me better results whenever im playing coc.

So my advice to you is, figure out what suits your usage.

Play around with the kernel settings.

Create your own base lines.

Create your own kernel settings.

FYI

I DDNT SAY THAT MY KERNEL SETTINGS ARE THE BEST. ( YOU CAN TRY IF YOU WAN )

BUT IM JUST SHARING IT TO PEOPLE SO THEY CAN HAVE AN IDEA TO WHAT SETTINGS I HAVE USED TO GET THAT 4HRS SCREENTIME WHILE PLAYING HEAVILY CLASH OF CLANS. :D

You can try both settings and figure out what gives you the best results.

But the one on my sig is the one i have been using it for a long time.

EDIT:

im telling you if you really know how to setup your kernel settings. You wont say that those 2 kernel settings are different lol.

---------- Post added at 06:45 AM ---------- Previous post was at 06:29 AM ----------

I will update my kernel settings. Flashing 3.0 on my s4 now with note 5 astra rom.

I will update my sinature for for my preferred kernel settings.

Feel free to try it if you want

UPDATED SETTINGS:

http://xdaforums.com/showpost.php?p=63946904&postcount=1011
[Galaxy S 4 i9505 Android Development] slim80:
Imperium LL Kernel v3.1 online.

For users that have the soft keys issue

In the last source, Samsung updated the touch KEY drivers. Please, open the dialer, type *#2663# and check if you have the Touch Key FW updated (0x12).
[Galaxy S 4 i9505 Android Development] Federacion:
Got the update but don't have any problems. Should I update kernel?