[Q] Any kernel for i9500 lolipop with undervolting support? - Galaxy S 4 Q&A, Help & Troubleshooting

Hey folks I have the i9500 and all i want is to undervolt to reduce the excessive heat generated from this phone. Any kernel working on android 5.0 (AOSP or Stock) with undervolting support?
Thanks

Unknown. I was going to mention the kernel I used, but then realized you were asking about the I9500.

Well forgive me for my noobiness, but is there any way to enable the voltage settings in the stock kernel? I see some custom roms having "battery tweaks" which I guess is undervolting.. Any developer who can clarify much appreciated

The main problem you're going to have is one of availability. There simply aren't that many ROMs for the I9500, and probably fewer kernels. For the I9505 I know of two kernels that support undervolting, because I've used both of them. But the I9505 uses a Qualcomm processor rather than the Exynos processor, so those kernels will be of no use to you. Did you look in the I9500 Android Development subforum to see what's there?

Not yet but Perseus kernel dev said that he will update his kernel to lollipop when he has finished some other thing.
Also battery tweak in custom rom is not undervolting or unlikely to be. Since undervolting is device dependent.

well that is very likely, but I read somewhere (dont remember which rom ) that the kernel was undervolted -50 mV across all frequencies which should be stable for most chipsets, so was just thinking if devs could access the voltage tables and modify it using tools like synapse. (again apologize for the noobiness).
edit - well of course devs could do that andrei and maxfu come to mind, but can it be enabled or accessed on a stock kernel by a normal user?

Related

[Q&A] [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker

[Q&A] [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Q&A for [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
Which one shouldI choose with this ROM?
Hi, I was wondering if I should choose the Kitkat 4.4.4 AOSP kernel or the GPE kernel with this rom:
http://forum.xda-developers.com/showthread.php?t=2557353
Thanks in advance for answering!
Anyone?!
Does anyone know this?
It doesn't matter anymore
It doesn't matter anymore, I found out which one. You need the Google play edition 4.4.4 and not the AOSP 4.4.4
In the end it was actually not that difficult, so I'm sorry for posting this "not that smart" question without reading a lot.
Random Reboot
Hi, i have installed this kernel using the setting in your script V6.
I have random reboot.
I use it on galxy s4 with google edition rom.
I hope you can help me, sorry for my english and i hope that what i have written is correct.
Thank you
Hi at all. I'm searching a post on XDA (I can't find it for now) where are explained all governor's parameters like block_cycles_offline_screen_on or boost_hold_cycles and ALL others.
Inviato dal mio GT-I9505G utilizzando Tapatalk
Hay. I'm using MultiROM since a few weeks. I used the Alucard Kernel until now because you need the Kexec Hardboot patch to use it. Would it be possible to add this Patch to the Kernel? I love your Kernel but I also love MultiROM. It would be great if we could combine both
Guys first time using the kernel, I loaded "Smooth Criminal"" profile, so far so good, anyways, my question is about the Fast charge, is it safe to draw 1900mA (that is what the lecture says) from a USB port?? my rig is a gaming one and another thing is that is set to Fast Charge = Enable, USB Port = 425mA and AC = 1600mA, I assume those Custom values are override because is set to ""Enable"" instead of ""Custom"", just wondering if its safe.. :/ How would I know.
need help regarding battery life
first of all thanks a lot for the kernel.im quite new to android and had a battery draining issue from the beginning and i changed my kernel in to this but no significant improvement of the battery life.other than that my phone is very smooth n no any other issue.im wondering why the battery drain so fast and its not last even a day with a full charge.screen on normally 2 hours per day.this is my first kernel installation and i did it accordingly other than fixing permission because there was no such option in the recover mode.it would be so nice if some one kindly guide me to resolve the problem because im sure there is something wrong in my device but not the kernel. these are some information about my device
model number gt-i9505
android 4.4.2
baseband version i9505xxufnc4
kernel 3.4.98 KT-SG_kk4.4 07.12.2014
i am using ktoonsified v6 profile in ktweaker and i have tried manual settings as well
i have attached a screen shot of my battery usage. display is on around 20mns
thanks in advance
Thank you for this kernel!
Hello,
Exactly the same problem for me, GSM and WiFi does not work with this kernel (KT-SGS4-KK4.4-AOSP-INTL-12.7.2014) on a "Snapshot CM11-M12 in Galaxy S4 Intl"
Sorry for my bad English
Hi all !
Hello guys.I have a I9505 for a month now and so far i've enjoyed playing with rooting/modding and so on.I've flashed CM11 at first but I replaced it with some modded Echoe Rom Touchwizz 4.4.2 ROM,Today I flashed this kernel and i'm so pleased with it.Lots of cutomizable options,OC capable and so on.My issue with my device it's that it gets hot very fast(after 10-15min of gaming) and after that it starts to throtlle .I've used like 3 different kernels so far including the stock one and the problem persists.With this one I managed to OC the cpu to 2106MHZ stable and the GPU to 545MHZ also stable.When I enter Asphalt8 for the first 5-7 minutes the performance it's just flawless compared to non-OC settings.The problem is after those couple of minutes it begins to throtlle as it does and I find myself running at 1.2GHZ or so CPU freq and 128MHZ GPU wich mages the game unplayable.I also set the throttle limit way upper to 85-90 degrees or so...still nothing seems to be stopping the throtlling on my device.If anyone has some tips or so please do help me.I really wanna enjoy this kernel xD ! :-bd
CM12 with this kernel -> experiences?
I just switched from stock Samsung 4.2.2 to AntaresOne's Unoffical CM12 rom on my S4 i9505.
I'm having the Miscellaneous battery drain issue (even though I still have better battery performance than with the stock Samsung rom), and have been thinking of installing this kernel.
However, on the xda forums a lot of ppl seem to be of the opinion that switching kernel will result only in minimal to unnoticeable improvement in terms of power consumption (taking into account just the kernel, not things as Greenifying, freezing and such which are kernel independent).
Can any of you give some feedback whether they have been getting noticeably better battery life with this kernel in similar circumstances (CM12, Miscellaneous drain) with ktoonservativeq or conservative governors?
Also, are there any other significant advantages to this kernel than power/cpu management over the AntaresOne CM12 kernel?
Hi
How I can find the S4 Touchwiz 4.4.4 Kernel Source?
Permission to use your kernel
I am requesting permission to include your kernel in a ROM that I am building.
Hi!
I've used the TwZ Kernel 4.4.2 on my 9505, Stock 4.4.2 ZTO (Brasil) rom, Rooted (of course) and have a issue:
When flashed and reboots, it stuck on "Samsung GT9505.." Logo. The sounds it makes is the same from a custom booting, but still stucked 4ver.
Flashed via CWM 6.0.4.7
I also Wiped Cache/Dalvik, but didnt Fix permissions (CWM 6.0.4.7 dont have this option anymore)
Please, if I've did something wrong or not.
Also, i've already have everything back to normal after flashing a Rom backup
Sorry for most worst english.
I need help, what rom work great with this version of kernel AOSP KITKAT 4.4 VERSION ?
ktoonsez awsome
ktoonsez, sweet kernel as always
only issue I've got is it doesn't work with the induction charging pads, I've got a genuine Samsung one.
I know this is fairly low on your radar and priorities list but if you could update this thread when you get to it, that would be great
Cheers
induction charge
I think i posted in the wrong thread before, your kernels are the bomb, im using the last 5.0 release on cm12 optimised release and its fast no random reboot. Very fast, and i know mr kstoonzes youre working on bigger things but when you get around to it please have a look at the induction charging, few reports saying its borked. Other 5.0 kernels fine. Keep up the awsomest work and happy xhristman
Kernel suport 5.0

[Q] Rom and Kernel choise

Hello,
A long time a go i had a s3, with several roms, especialy to downscale the processor, customizing and for better battery life.
after all the knox **** and some phone's further, i now have a s5
which kernel + rom do you prefer and why?
is there a thread where all the roms and kernels are compared?
already much thanks for your help
greetings jordy
jordycoelen said:
Hello,
A long time a go i had a s3, with several roms, especialy to downscale the processor, customizing and for better battery life.
after all the knox **** and some phone's further, i now have a s5
which kernel + rom do you prefer and why?
is there a thread where all the roms and kernels are compared?
already much thanks for your help
greetings jordy
Click to expand...
Click to collapse
on xda you're not allowed to make a thread on which roms the best or which kernel is the best but i would say stay on stock kernel and use a custom firmware thats not too bloated. flash a kernel if you need to change android se to be permissive or you need the extra battery train most roms come with their own kernel anyway

Cannot overclock higher than 2.26GHz?

Hi, I have a Samsung Galaxy Note 3 N9005.
I installed a custom recovery and rom 2 days ago, first rom being phronesis 2.0 rom.
From there I tried overclocking my device but all apps show me 2.26ghz is the max my device can go, apps used include: kernal auditor, setcpu, trickster mod and no frills cpu control.
I searched the forums a bit and so I thought flashing a new kernel would help. I flashed Arter97s kernel and it still didn't allow me to overclock higher than 2.26 ghz, then I tried audax's kernel with no luck.
Then today I moved on to Tesla 5.1.1 Rom, and I still cannot overclock higher
I yet again reflashed arter97s kernel and still I am having no luck.
Any help?
Thanks
owner eod
This is the limitation of the kernel. It provides the frequencies it supports, so you need a kernel with OC support. I do not OC, so sorry, no clue which to take which even is allowed to talk about here. ShinTo was supporting it AFAIK, but they had to leave due to not providing the source and thus violating the GPL.
Overclock
emuandco said:
This is the limitation of the kernel. It provides the frequencies it supports, so you need a kernel with OC support. I do not OC, so sorry, no clue which to take which even is allowed to talk about here. ShinTo was supporting it AFAIK, but they had to leave due to not providing the source and thus violating the GPL.
Click to expand...
Click to collapse
I am able to overclock my 9005 up to 2.7GHz with mentioned apps. I am not sure which kernal I am using. I have Phronesis 5.0 on and am getting ready to flash 5.2. The only shlep is that I need to set the frequency after each reboot. I wish this could be included in a kernal.
Try using leankernel: http://forum.xda-developers.com/showthread.php?t=2488082 I had same kind of problem then I flashed this and used kernel auditor. Now everything works perfectly!
Can't Flash Kernel on note 3 sm-n900
I have been looking for solution at multiple sites. Hope to get answer here. I have downloaded a stock rom lollipop for my note 3 sm-n900.
I was successful at overclocking it to 2.1ghz but i want it to be at 2.7ghz and the current kernel does not support it.
I tried flashing three different kernels lk-hltemo 6..., lk-hlte v6 and lk-hlteu 6... using CWM and TWRP but kernel didn't flash.
Somebody pleaseeeee helppppp....
Read the thread .
But if you dont know what you are doing you will brick your phone .

SM-J500M (2015) Android 6.0.1

Can anyone make a kernel for the J500MZTO1BRD1 (6.0.1) version? Because my phone is consuming aaaa lot of energy and in the Dev menu here on XDA, i'm only finding kernels for the J510 variants, and they have a lot of features like, cpu undervolt, overclock on both cpu and gpu and some really cool extras.
Can someone do this job?
https://forum.xda-developers.com/an...w-to-build-custom-roms-kernel-t3814251/page27

Kernel with CPU/GPU Overclock/Underclock/Undervolt support?

Hello everyone, coming from Galaxy Note 2, I've wondered if there's kernel that supports OC/UC/UV for both the CPU and GPU?
I've tried all of the custom kernel in the index, but only Evira support CPU OC/UC (but not GPU OC) and the performance wasn't very good. Is there any upcoming custom kernel that supports all of the above?
All? Okay
I happy with morfuz, but I'm not a player.
And it have not of this options.
Yup all of them. Maybe I'll have to write my own haha. Or modify one of them to support it. :silly:
Oc
So have you found a good one or made the tweaks yourself? I'm looking exactly for that kernel and untill now ancient is the more stable and without bugs or overheating.

Categories

Resources