yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Mini Android Development] holymoz:
cpu screen off maf freq can save some battery, set it 1026

try some "eco" profiles, I think they are more batt save.

try governor wheatley or intellimm or smartmax

try undervolt offset 100 mv and don't apply setting at boot, use phone to see if crashes, if not, is stable and you can apply at boot.

virtual memory try: (in short words these settings make write less often to flash memory from ram, can make more ram used but more speed and more batt).

dirtyexpirecentisecs 500

dirtywriteback.. 1000

swappiness 30 or below

vfs cache pressure 20

test whole phone for performance, if it lags change governor to ondemand
[Galaxy S 4 Mini Android Development] o0chtm0o:
That was what I already did. Downloaded the latest version (0.1.1 FULL) and I can't connect to any network.

I had to go back to 0.1.0 version after flashing modules.

My model: 9195 / My ROM: N5 FOUR MINI
[Galaxy S 4 Mini Android Development] Loulou-13:
Thank again ! It'nice... ;)

Undervolt with -100 ? It's too much ?! No ? :confused: Generaly it's safe with -25 , -50 ...or -75 "max" ...
[Galaxy S 4 Mini Android Development] holymoz:
:eek: never tried undervolt before, I used - 200 mv first time and crashed, then I set to -100 and used "stability test" app on store (20 min on generic test and 20 min on scaling test, both with performance governor and every hotplug disabled).

then I run some antutu tests and antutu stability tests, from now no crash, I stopped here but you can go more gradually, depends on the hardware that is different for every phone.
[Galaxy S 4 Mini Android Development] o0chtm0o:
I think 125 is max safe value. If you're not experiencing any lags, freezes or reboots, it's fine. Else, down the values.

There are some awesome guides for undervolting at the web

This one is not especific for our device but I think you can get a general idea about it and some good knowledges ;) LINK
[Galaxy S 4 Mini Android Development] holymoz:
thanks, I wanted to do a "light" undervolt without doing so much trial/error, so I decided a single reducing not very hard without problems.
[Galaxy S 4 Mini Android Development] o0chtm0o:
I hate developers / knowledgeable silence!
[Galaxy S 4 Mini Android Development] ladislav.heller:
I have no connection problems with 0.1.1, everything works well. Do not hate developers!
[Galaxy S 4 Mini Android Development] o0chtm0o:
I don't hate developers, I hate the silence when you're having a problem and nobody cares about.

How did you do for having it working normal? I downloaded and flashed the file like I've done before and now I'm having problems when try to connect to any network. Networks names appears on list but I can't connect to anyone. Doesn't says anything, just no connect.

I had to flash published modules and then flash 0.1.0 again for having wifi conection again.

Thanks for your answer.
[Galaxy S 4 Mini Android Development] ladislav.heller:
Not flashed the modules.

Just simply flashed the 0.1.1 kernel over my deodexed COC2 ROM.
[Galaxy S 4 Mini Android Development] o0chtm0o:
Me too. I flashed the latest kernel and had the problem I mentioned above. THEN, I had to flash the modules because I flashed the 0.1.0 again and didn't not work the wifi.

Do you understand? :confused:
[Galaxy S 4 Mini Android Development] holymoz:
Try cwm backup, then reset phone or better reinstall rom to default, then install kernel.

If net works probably there is something occurred during the life of the phone that make conflict with kernel.

In this case is better to reinstall all apps and settings, recommend titanium backup.

Save phonebook to vcf first.
[Galaxy S 4 Mini Android Development] o0chtm0o:
[MENTION=5925090]alexax66[/MENTION]

Well... I'll try but I think it's something about this version of kernel, because I flashed 0.0.9 version and everything fine, then 0.1.0 and everything perfect, but flash this latest one and wifi doesn't connect to any network, else works fine. Just wifi, I can turn ON/OFF wifi and see networks, but when I try to connect to anyone nothing happens.

Thanks for your time and answers. I preciate that :good:
[Galaxy S 4 Mini Android Development] holymoz:
I think its a module related problem, latest its the only version that update the modules.

Just for try open the zip of the kernel and ectract the modules folder and the other wifi folder then place it manually in the relatibe phone folders with an app like root explorer, remember to give files same permission like the others in thr same folders, then reboot
[Galaxy S 4 Mini Android Development] o0chtm0o:
I did what you said. Now I can't activate wifi

---------- Post added at 03:07 PM ---------- Previous post was at 02:10 PM ----------

Well... Now I can't enable wifi. Even if I flash stock modules and reflash 0.1.0 :(
[Galaxy S 4 Mini Android Development] o0chtm0o:
Definitely I can't use version 0.1.1 of this kernel with my rom (N5 FOUR MINI 3.0)

I made a TOTALLY clean install and still doesn't work. I can't connect via wifi to any network, I can see networks but can't connect.

Any ideas? [MENTION=5925090]alexax66[/MENTION] [MENTION=4612760]ladislav.heller[/MENTION]

My model: i9195
[Galaxy S 4 Mini Android Development] ladislav.heller:
Try another ROM and forget N5 four mini...
[Galaxy S 4 Mini Android Development] holymoz:
Agree, it's definitely a rom problem
[Galaxy S 4 Mini Android Development] singh54:
Hi dude,

You try the WPS Push Button option in the advance settings options in the WiFi menu....

After u press that option, it will shows a dialog to press and hold the reset button of your wifi....

Just do that, maybe it will works and you will get connected to the wifi..

Right now i am using a LP custom rom, no way to check this kernel with that...

but

I'm saying this bcuz i had this same type of problem when i first installed the LP Custom Rom, i had the same problem like yours... It was solved by doing the above steps......So you just try it, maybe it'll work.....

(if you already did this and still wifi not working means then some other have to help you)
[Galaxy S 4 Mini Android Development] Boombastical:
Hi,

I have already asked few members via PM about „best settings“ for this kernel to achieve better battery life and not to suffer a lot about performances. It's about i9195 on rooted stock kernel xxucnk1. Finaly, tonight I will flash Alexa's version 0.1.1 beta kernel and my questions are to all users of this kernel:

- What if I don't change anything but just flash it and leave it as it is ?

- The phone is used only for browsing internet, messeging, skyping with video call (what's up & viber too) and taking pictures and short films. No games and no watching movies on it.

- Should I underclock it and does it will help to get more battery ?

- What should be the lowest frequency (without lag) and what the highest then ?

- What about undervolting and how to do this ?

- Or just leave it as it is and change governor and scheduler ? But then which one is for best battery life and performance by light usage ?

- What is default governor/scheduler and what are yours experiances with it ?

- What are your settings for this kernel ?

- What is the best app to control all this settings ? Rom Toolbox Pro or somthing else ?

Thanks to all in advance !
[Galaxy S 4 Mini Android Development] Boombastical:
Results after flashing a Alexa's 0.1.1 beta kernel to my girlfriend phone

Hi to everyone,

Yesterday I flashed Alexa's 0.1.1 kernel to my girlfriend S4 mini i9195 with XXUCNK1 build and everything is fine so far. She has already almost double battery life in comparison to before and she is realy satisfied with new kernel except that she didn't liked new bootimage and the text that appear with orange letters: "Set warranty bit kernel" every time when she turn her phone on.

With kernel adiutor I have underclocked her phone to 1566 MHz and undervolted all frequencies for 50 mV. The lowest frequency is 189 MHz. Governor is "Smartmax" with "FIOPS" scheduler. I used intelliplug - balanced with eco performance enabled. Also didn't change stock GPU frequencies - No overclocking GPU. For the rest I didn't change other values exccept that I lowered the swappiness from 80 to 50 and I changed vfs cache pressure to 20 as the user Holymoz has me advised.

Tonight I will have her phone again and maybe I will try to change some more values to see if it help even more to save more battery without loosing a performance.

What is your opinion about underclocking ? Does it help anyway ? Or are there a better ways to gain more battery without underclocking ?

If you have more suggestions feel free to write here and I will test it when I have her phone in my hands again.

Again big thanks to all users who participated here for testing and of course to all developers but especially to Aleksa who's work is really precious for S4 Mini community after Samsung has abandon developing on this device.

P.S. Is there a way to remove "Set warranty bit kernel" text at booting the phone and also to change to original boot screen from Samsung ?
[Galaxy S 4 Mini Android Development] o0chtm0o:
[MENTION=5925090]alexax66[/MENTION] Last Activity: 23rd September 2015 01:45 AM

Lets pray for Alex! :angel: :fingers-crossed:
[Galaxy S 4 Mini Android Development] holymoz:
With this configuration is very batt saving but try to notice if there are lags, if yes try change governor to one of the performance like interactive, intelliactive or a medium intellimm, ondemand.

Otherwise you can return max freq to 1728.

Always in case of lags try intelliplug with perfomance profile.

The touchboost give good performance but second core will activate everytime you touch the phone(with more batt use).

Set screenoff max freq to 1026 to save more batt.

Bit kernel can't be deleted because is a warranty void from Samsung; the boot image is from alex, ask him to change but appears very fast and I even not noticed it
[Galaxy S 4 Mini Android Development] ladislav.heller:
Stop with that please. He will do any news on kernel when he finds time for that.
[Galaxy S 4 Mini Android Development] o0chtm0o:
What's your problem? What do you know about that? What do we know about his life? What do we know if he had some problem, accident or something? Why can't you pray for him, his life, for that everything goes well for him and come back fine?? Is that a problem for you?? Is that bad?? :confused:
[Galaxy S 4 Mini Android Development] ladislav.heller:
No problem. If you want to pray for him, go to church and do it. But nobody wants to read here any offtopic thing. That's all.
[Galaxy S 4 Mini Android Development] o0chtm0o:
That's is companionship, support, humanity. That's part of everything we do, so, I wouldn't say offtopic, but each head is a world :good:
[Galaxy S 4 Mini Android Development] denon480:
Guys, no worries, when alex have a time he always look for new features and bug fix for kernel, just be patience
[Galaxy S 4 Mini Android Development] kubura2999:
[MENTION=3709617]o0chtm0o[/MENTION]

Try to change modem on your phone to XXUCOC1 or ...COC2, then flash the full 0.1.1 kernel, without stock modeles, just full 0.1.1

After i changed the modem from nk1 to coc1, the problems went away.

Iam using ploiki 4.4 rom.
[Galaxy S 4 Mini Android Development] o0chtm0o:
Did you have same problems?? Could see wifi networks but can't connect to anyone??

Thanks
[Galaxy S 4 Mini Android Development] haloass65:
Things do add ')

Hello

Can u add L2 Cache and RAM OC ? :)
[Galaxy S 4 Mini Android Development] RuffBuster:
Have you noticed that using "ondemandplus" keeps the cpu running at max, does for me. Testing your configuration, but with "ondemand" this time and cpu drops to lower clock speeds now and no noticeable drop in performance. Also I find battery definitely lasts longer with "ondemand".
[Galaxy S 4 Mini Android Development] Loulou-13:
Interresting....

I don 't have tested myself with "cpu spy" ...and i never know witch governor/scheduler is the "best" ,but when i put smartmax for example :i have big lagg of hell ! Horrible !

There are lots of governors projects but the "simple" original ondemand stay the best compromise ??????

For scheduler (my opinion !) ,SIO seem to be the good compromise with perf and multitask....but FIOPS have best performance but less good for multitask.

NOOP seem good only for monocore phones (horrible multitask) ,cfq is perfect for multitask! Daily usage ! ..but not for performance.
[Galaxy S 4 Mini Android Development] holymoz:
can implement westwood tcp algorithm in this kernel?
[Galaxy S 4 Mini Android Development] Black Swift:
does it include the Battery drain patches present in SilviuMik kernel? does baseband and compilation number change? i alredy have a flagged knox because i flashed CWM (i dont really know what are the issues with having knox flagged) my baseband is I9192UBUCOC2 and my compilation number is KOT49H.I9192UBUCOC2.

can i use this kernel?
[Galaxy S 4 Mini Android Development] 00ehsan00:
this kernel is good enough for daily use.

but i want to set different governer and max freq for every core.

with silviu and f4k kernel i can do this with kernel tuner. but it seems that this kernel doesn't support this feature.

plz add this feature in next varsions.
[Galaxy S 4 Mini Android Development] andu86:
why there's no an .md5 file format for the 0.1.1 version ?

and if i want to go back to stock kernel do i need to flash something else or just the stock kernel ?
[Galaxy S 4 Mini Android Development] alexax66:
Hi all

I was busy on another project

Now I can return to this kernel

Yes, i will to add westwood tcp algorithm in next version

Try use KernelTuner app

This tool can change governers and max freq for every core.

Kernel ALX-0.1.1 contains a new modules that can be flash only through recovery

Without this modules wi-fi don't work.

Next version will return to native stock modules
[Galaxy S 4 Mini Android Development] ladislav.heller:
Hi!

What about features like BLN and OTG ? Can U add them to your kernel?
[Galaxy S 4 Mini Android Development] alexax66:
I have tried earlier unsuccessfully

OTG and BLN don't work on stock KK :(
[Galaxy S 4 Mini Android Development] ladislav.heller:
For OTG you can ask [MENTION=3261191]F4k[/MENTION]. He gave me a couple of months ago a test version of his kernel (for stock KK ROM) where the OTG worked - I tried it with USB Y-cable and an external USB disk with NTFS partition.

For BLN - no idea :(
[Galaxy S 4 Mini Android Development] 00ehsan00:
thanks for answering.

i used kernel tuner before but it don't work.

after u say ,i update it and this time it works
[Galaxy S 4 Mini Android Development] Boombastical:
Hi to all ! Very stable kernel ! All what I can write at the momment after more then two months of „normal“ using of this Alexa's beta kernel is that it can be easyly called a „RC“ kernel. On the stock ROM, sinds installing there was no one problem at all !!! Even with changing voltages it's ROCK SOLID !!! Baterry life is improved ! If there will be more new features in the final realese it will be nice, but I don't know if there is much more things you can tweak on this KK kernel... Anyway, succes and thanks again !!! Greatings to all and especially to Aleks !!! Chears !
[Galaxy S 4 Mini Android Development] koutsouk:
Does this kernel support swap for ram expansion ??
[Galaxy S 4 Mini Android Development] alexax66:
Yes, you can add in /system/etc/init.d this script 05-Swaponboot:

#!/system/bin/sh
mount -o remount,rw /system;
if [ ! -e /system/swap.file ];
then dd if=/dev/zero of=/system/swap.file bs=1048576 count=250;
fi;
busybox mkswap /system/swap.file;
busybox swapon /system/swap.file
[Galaxy S 4 Mini Android Development] koutsouk:
Well i would like to use the app Ram Expander.

Will i have the same result ?

Or i will add this script to enable the swap option and then use the app?
[Galaxy S 4 Mini Android Development] alexax66:
Yes
[Galaxy S 4 Mini Android Development] unit999cn:
[MENTION=5925090]alexax66[/MENTION] , I format data Partition from ext4 to F2FS, but it crash on boot logo.
[Galaxy S 4 Mini Android Development] alexax66:
Need some changes in boot.img for F2FS support

I can made it

What kernel version do you use?
[Galaxy S 4 Mini Android Development] unit999cn:
Thank you so much! I'm using the newest, 0.1.1
[Galaxy S 4 Mini Android Development] unit999cn:
I hope cifs can be add in new version kernel.:D
[Galaxy S 4 Mini Android Development] alexax66:
cifs has been added in this kernel earlier
[Galaxy S 4 Mini Android Development] unit999cn:
Cool~!! I will try it soon. :D
[Galaxy S 4 Mini Android Development] alexax66:
Try this kernel
[Galaxy S 4 Mini Android Development] unit999cn:
:crying: no work for me. I formated /data and /data/media by Philz touch, then i reboot system and it still hang on samsung logo.:(
[Galaxy S 4 Mini Android Development] alexax66:
Hm, may be stock KK can't work with F2FS. I haven't tested this.

Cyanogenmod works fine with F2FS on system, data and cache partitions

I have used СМ10, СМ11 and CM12.1 with this format long time
[Galaxy S 4 Mini Android Development] ladislav.heller:
Hi!

Can U please build an I9195 version of this kernel with full f2fs support?

I can try on my device whether it works and report.
[Galaxy S 4 Mini Android Development] alexax66:
OK!
[Galaxy S 4 Mini Android Development] unit999cn:
God, It's too bad. :(
[Galaxy S 4 Mini Android Development] singh54:
Need Help

Would someone please tell me how to use the Fast Charge option in this kernel?

Is it good to activate the Fast Charge?

And if so how to do that? Should i just use apps like performance control or kernel auduitor and simply switch on the USB fast charge?:(:(

Or i have to do some other things like changing the current levels for wall charger, USB 2.0 and USB 3.0????:confused::confused:

Please Answer....:D:D:confused::confused:
[Galaxy S 4 Mini Android Development] Loulou-13:
This kernel already have many parameters with aduitor ,VERY good baterry life ,all work fine......perfect daily usage of the phone !!! A sh** fabulous work by alexax !!!!! :p

Why ask more ???? (F2f...) :D

---------- Post added at 09:36 AM ---------- Previous post was at 09:32 AM ----------

Sorry ,i never use fastcharge.....useless for me (enought fast witg a pc for me )

I highly recomand aduitor ! The best and full complete...
[Galaxy S 4 Mini Android Development] o0chtm0o:
I can't connect to any wifi network man. I can activate wifi and see the networks names but I can't connect to anyone.

Help me please.

i9195 - 0.1.1 kernel - Baseband i9195XXUCOI5
[Galaxy S 4 Mini Android Development] alexax66:
Try clean all Wi-Fi settings, then enter them again
[Galaxy S 4 Mini Android Development] o0chtm0o:
I made a totally new fresh install of [MENTION=3984808]adizmayazal[/MENTION] rom and [MENTION=5882251]kokobenjamin[/MENTION] rom and doesn't work in both projects. I tried 3 or 4 differents basebands and nothing. Same results. I can see the networks but I can't connect to anyone.

I had to flash stock modules and then flash 0.1.0 version to make it work
[General Questions and Answers] xcore2soul:
Hello I recently encountered a bug in my XPERIA Z, navigation buttons (back, home, multitask) are not functioning. I noticed that factory resetting phone and setting up phone for the first time the other buttons (Next and Back) are functioning in the same touchscreen area as well some third party apps like dolphin browser navigation bars located at the same spot are also working.

I factory reset the phone, flashed KitKat, flashed Lollipop but also my problem is not fixed.

Any help will be greatly welcomed.

Thank You
[General Questions and Answers] NemboSix:
Try go to navbar settings and see if anything says off or something like that
[ZenFone 2 General] deadman96385:
#blisspoop
[ZenFone 2 General] Mazda:
hahahaha
[ZenFone 2 General] gontie:
Official rom ? Beta testing ?
[ZenFone 2 General] DaveyBoy2002:
psssst... download link k thx :)
[Galaxy Note 4 General] MohamedYousri:
A few days ago, communities Galaxy Note 4 users are 'restlessness'' with information and images from the blockbuster Sammobile about preparing phablet been updated to Android 5.1.1 with 64bit architecture. However, in the screenshot image which this website provides is version Note 4 (N910F) - devices using Snapdragon processor, while most of the equipment Note 4 sold in Vietnam is N910C - devices used powerful Exynos processor from Samsung.

The picture above is one of the forum members shared Samsungviet.vn to us. Galaxy Note 4 (N910C) use Exynos processor running Android 5.1.1 and is updated on 64bit architecture '' sacred ''. And according to the information I received, the 5.1.1 update will be released within this month Samsung later, so please keep checking .

http://samsungviet.vn/threads/hinh-...droid-5-1-1-cau-truc-64bit-tai-viet-nam.5879/
[Galaxy Note 4 General] Burgscheinkerkdeiktraast:
There is no point in 64 bits when you have less than 4 GB RAM, it is just fight for having "64 bit.

Kids like that.
[Galaxy Note 4 General] ravijani:
its a rumour. not 64 bit as russian fw leaked and files were 32 bit. so it wont be but sammy knows only what to do.
[Galaxy Note 4 General] Toss3:
There's more to 64-bit than just accessing more memory. This has been said and posted about a billion times already since the launch of the iPhone 5S.

http://www.anandtech.com/show/7335/the-iphone-5s-review/4
[Galaxy Note 4 General] tmac31:
They havent released any official 5.1.1 for any exynos variant yet. And since they showed note 4 as 64 bit in note5 infographic everything seems possible.
[Galaxy Note 4 General] Jovan1997:
And why we need 64bit endabled? -.-

We have 3GB RAM so,i will be stay on 32bit
[Galaxy Note 4 General] tmac31:
Kidding? 64 bit doesnt worth alof but 3gb ram isnt related.
[Galaxy Note 4 General] JavierHouse:
Mmmmm interesting

Enviado desde mi SM-N910C mediante Tapatalk
[Galaxy Note 4 General] alex9898:
If it's true, I'm pretty sure that the Note 4 will have to face the same problem than the S6.

64 bits systems use more ram than 32 bits. On the S6 the problem was resolved by a fix wich literally kills multitasking.
[Galaxy Note 4 General] CLShortFuse:
Wow at so much FUD in this thread. No, 64bit isn't just about 4GB RAM.

64bit opens up AARCH64 which has lots of benefits.

You get the 64bit CPU instruction expansion for faster operations (less cycles).

Faster access to 64bit data which help cryptography and compression schemes a lot.

As for the talk about 64bit using more ram than 32bit, that only applies to unoptimized 32bit applications running in 64bit. Since Android uses AOT compilation and Android Lollipop's ART has native 64bit compiler, this is never really an issue. Do you really think a single bit boolean value in Java used an entire 32bits on x86 processors?

Edit: Also, for people talking about RAM usage, blame that on Samsung's Touchwiz garbage. The Nexus 9 has a 64bit CPU and only 2GB ram. The reason I'm excited for this strictly because it'll help build custom roms (CM) with 64bit support.
[Galaxy Note 4 General] Pannam:
I would welcome 64 bit with open wide arms.
[Galaxy Note 4 General] Tauras:
I hope that this is true cause it felt like Samsung abandoned Note 4 users.
[Galaxy Note 4 General] thedarkmunk:
Can I be the atypical consumer noob and ask: what does this mean for N910F users?

Thanks!
[Galaxy Note 4 General] Toss3:
Nothing really. Doesn't mean anything for the n910c either as we've been hearing these 64-bit rumours since it launched, and Samsung have made it pretty clear that they want it to stay on 32-bit just like the 910F.
[Galaxy Note 4 General] alex9898:
I remember reading a review (from Androidpolice, I think), saying that the Nexus 9 has a very bad multitasking with frequent app's reloads and lags when returning to home.
[Galaxy Note 4 General] dirtyflo:
Yeah but exynos version is 4gb ram but only 3 are enabled.

Still some hope that samsung get the 4th gb in service.
[Galaxy Note 4 General] TyrantCAT:
What! ?

Source please. ....
[Galaxy Note 4 General] dirtyflo:
Here is the app from the playstore

https://play.google.com/store/apps/details?id=com.Bfield.CpuIdentifier