Custom kernal for samsung a20? - Samsung Galaxy A20 ROMs, Kernels, Recoveries, & Ot

I have searched ever corner but every kernal that exists is either does not let you over clock, or they have bugs like camera not working and getting reboot. Can any one please provide me a proper custom kernal for overclocking gpu and cpu?
Thanks for help in advance!

what system do you have installed?

Psycho001 said:
I have searched ever corner but every kernal that exists is either does not let you over clock, or they have bugs like camera not working and getting reboot. Can any one please provide me a proper custom kernal for overclocking gpu and cpu?
Thanks for help in advance!
Click to expand...
Click to collapse
Min14.6
https://forum.xda-developers.com/galaxy-a20/development/custom-kernel-galaxy-a20-t4083045
More info here and benchmarks in post#2
https://forum.xda-developers.com/galaxy-a20/how-to/android-10-q-guide-a20-t4095589

0

Related

[DISCONTINUED][MODULE] AIO UV, MT, MDDI lag, OC and Battery drain fix for MiniCM 6

Hi All,
All the features are incorporated in the MiniCM6 v 1.0.1 found here
Hit Thanks if you like my post
facing too much reboot after this update check for bugs
thnx
sachith024 said:
Hi All,
I just integrated doixanh modules into a update.zip file. I claim no credit.
MultiTouch v005
UnderVolt v001
MDDI v001
OverClock 249/748 (no module)
Xrec installable
Hit Thanks if you like my post
Click to expand...
Click to collapse
check wifi folder it may be the problem
sachith024 said:
Hi All,
I just integrated doixanh modules into a update.zip file. I claim no credit.
MultiTouch v005
UnderVolt v001
MDDI v001
OverClock 249/748 (no module)
Xrec installable
Hit Thanks if you like my post
Click to expand...
Click to collapse
This is fixed version
working fine for me
its with the default over-clocking(710)
thnx
abhi98228 said:
This is fixed version
working fine for me
its with the default over-clocking(710)
thnx
Click to expand...
Click to collapse
Works very well for me your fixed version.Thank you !
Since installing this my battery life has literally more than doubled so for that alone you have my thanks, wouldn't of installed the seperate modules but you have made it easy, good work
Sent from my X10mini using XDA App
Hi,
Thanks for the collection of updates. I for one, have also experienced the rebooting bugs.
I think the undervolting of the phone makes it reboot. I have especially experienced the rebooting when the phone tries to reconnect to wifi after being idle for some time. Maybe it draws too much current for the idle condition to supply enough power, and therefore reboots the phone?
Regards,
mfas
nice nice only why undervolt AND overclock the overclock module is already undervolted
owain94 said:
nice nice only why undervolt AND overclock the overclock module is already undervolted
Click to expand...
Click to collapse
nice nice only why undervolt AND overclock the overclock module is already undervolted
Nice work, that was my first idea with tweaks, but... i dont have a mini so i cannot test...
owain94 said:
nice nice only why undervolt AND overclock the overclock module is already undervolted
Click to expand...
Click to collapse
the overclock module is not included in this.
overclock applied through hw_config.sh
echo freq > /sys/devices/system/cpu/cpu0/cpufreq/scaling_<min or max>_freq
again... borrowed from D4rKn3sSyS...thanks to him
mfas said:
Hi,
Thanks for the collection of updates. I for one, have also experienced the rebooting bugs.
I think the undervolting of the phone makes it reboot. I have especially experienced the rebooting when the phone tries to reconnect to wifi after being idle for some time. Maybe it draws too much current for the idle condition to supply enough power, and therefore reboots the phone?
Regards,
mfas
Click to expand...
Click to collapse
not sure y its happening... one of my friend is also facing problem with v1
use abhi's or v2 .zip and let me know if it works for you.
will do some more experiments and update if required
Thank you for this compilation, just a few questions though, I want to clarify something..
1. Just want to ask if what I did was right: renamed zip file to update.zip and installed via xrec, correct?
2. How can I test all modules if it worked?
Thanks and regards,
Xaeons
Xaeons said:
Thank you for this compilation, just a few questions though, I want to clarify something..
1. Just want to ask if what I did was right: renamed zip file to update.zip and installed via xrec, correct?
2. How can I test all modules if it worked?
Thanks and regards,
Xaeons
Click to expand...
Click to collapse
1. UV- battery life increases
2. MDDI lag... its hardly noticable
3. MT- download multi touch visualizer from market and test it
4. OC- install set cpu and check the max n min freq...
Thanks satchith, I'll test it on the ff days..
Though when I tried Quadrant Advanced, back then my average was between 900-1000, now its 1100-1200..
hello guys,
i noticed that when i install the existing module the brightnes of the phone lowers ,do you know anything about that?
thank you
mitsos16x said:
hello guys,
i noticed that when i install the existing module the brightnes of the phone lowers ,do you know anything about that?
thank you
Click to expand...
Click to collapse
Thanks for ur feedback, brightness issue fixed. Please test and let me know
Hello!
This Files Works On Stock SE ROM?
dark_zhero said:
This Files Works On Stock SE ROM?
Click to expand...
Click to collapse
HTML:
echo freq > /sys/devices/system/cpu/cpu0/cpufreq/scaling_<min or max>_freq
Works well
Is ther ny update in MDDI or Undervolt????

CPU settings

Hi
Have a rooted and would like to use the CPU app to tweak for better phone life.....remember someone put some instructions on setting up but can't find that posting.
Thanks in advance
sr
steve16 said:
Hi
Have a rooted and would like to use the CPU app to tweak for better phone life.....remember someone put some instructions on setting up but can't find that posting.
Thanks in advance
sr
Click to expand...
Click to collapse
Just rooting is not enough if you want to use SetCPU app. You need a kernel that supports overclocking/undervolting, something like this: http://forum.xda-developers.com/showthread.php?t=1252301
this can overclock with a stock kernel with root
http://forum.xda-developers.com/showthread.php?t=1101355
Would these do ?
Hi
Have a rooted and would like to use the CPU app to tweak for better phone life.....remember someone put some instructions on setting up but can't find that posting.
Thanks in advance
sr
Thanks, running on Kernal Version speedmod s2-k1-t39
Rom CriskeloRom version 18

[Q] [DEV ONLY] Oc Kernel on stock rom

Hi everybody, i tried to flash the oc kernel of ketut in the stock rom 2.3.x .. i saw that wifi doesn' t work.. anyone can fix it? Or need a new kernel? When i try to turn on the wifi it say me "error".. Honestly i don't try 3g connection or bluethoot.. Anyone have a solution?
Sorry for my Very Very Very bad english..
Lorubik said:
Hi everybody, i tried to flash the oc kernel of ketut in the stock rom 2.3.x .. i saw that wifi doesn' t work.. anyone can fix it? Or need a new kernel? When i try to turn on the wifi it say me "error".. Honestly i don't try 3g connection or bluethoot.. Anyone have a solution?
Sorry for my Very Very Very bad english..
Click to expand...
Click to collapse
Fisrst,OC kernel is for CM7 roms is you want to try it on stock so try it on BlackHwak Rom By Ketut
PS:This is developement dection post it elswer!!!
Sorry but i don' t understand perfectly the blackhawk rom.. it is only convert from rfs to ext4?
wifi error not dev issue?
slaid480 said:
Fisrst,OC kernel is for CM7 roms is you want to try it on stock so try it on BlackHwak Rom By Ketut
PS:This is developement dection post it elswer!!!
Click to expand...
Click to collapse
isn't wifi error on non stock kernels a developement issue?
BTW i had the same wifi error aswell as i thought sod it i'll try it.
thinking its a driver not loading correctly from the limited knowledge i have?
The Ketut's OC Kernel would make wifi stop working on stock ROM, because the OC kernel is ONLY FOR CYANOGENMOD 7.
Clear? Disable SetCPU and Flash CF-Root to get wifi back.
And this should be in general section actually >_>
KcLKcL said:
The Ketut's OC Kernel would make wifi stop working on stock ROM, because the OC kernel is ONLY FOR CYANOGENMOD 7.
Clear? Disable SetCPU and Flash CF-Root to get wifi back.
And this should be in general section actually >_>
Click to expand...
Click to collapse
i know this, but can' t ketut create an oc kernel for stock rom? he' s a good developers..
AFAIK*, It's not possible in stock ROM.
AFAIK = As Far As I Know.
KcLKcL said:
The Ketut's OC Kernel would make wifi stop working on stock ROM, because the OC kernel is ONLY FOR CYANOGENMOD 7.
Clear? Disable SetCPU and Flash CF-Root to get wifi back.
And this should be in general section actually >_>
Click to expand...
Click to collapse
i know its for cm7 only but this wifi error issue just keeps on getting ignored and also the point of customisation is to mix and match roms and kernels to suit personal taste!
i like stock roms aswell as custom roms but to overclock we have no choice but to flash cm7 roms.
also i have never found an explanation to what causes the error in the first place!
somone answer please
ASHLEY117 said:
i know its for cm7 only but this wifi error issue just keeps on getting ignored and also the point of customisation is to mix and match roms and kernels to suit personal taste!
i like stock roms aswell as custom roms but to overclock we have no choice but to flash cm7 roms.
also i have never found an explanation to what causes the error in the first place!
somone answer please
Click to expand...
Click to collapse
Simple: It's just not compatible with the Samsung ROM. The modules are a bit different. And If I'm not mistaken, the Samsung's Kernel doesn't support OC.
ASHLEY117 said:
isn't wifi error on non stock kernels a developement issue?
Click to expand...
Click to collapse
Tell this to mod when get worning
90% prob related thread are related to development so if all comes here you cant find any development things lol
All question related thread related to app or themes or developmen should be in general to keep things clean
Peace
lol. ur thread title make u looks like ur posting new kernel, while its just a question. no need to create new thread just for asking question and cluttering this dev subforum.
btw its possible to create oc kernel for stock rom, its just merely editing a file in the sourcecode.
an0nym0us_ said:
btw its possible to create oc kernel for stock rom, its just merely editing a file in the sourcecode.
Click to expand...
Click to collapse
Thought it's not possible? lol
Is the Ketut's CF-Root source available? I may take a look..
thank you
thanx for all who answered, and good point nims11, if it is pos then i will just wait until stock oc kernel pops up on here,
i will now shut up and put up! (LOL)
i had a gut feeling it would be either drivers or modules so thanks for answering
an0nym0us_ said:
lol. ur thread title make u looks like ur posting new kernel, while its just a question. no need to create new thread just for asking question and cluttering this dev subforum.
btw its possible to create oc kernel for stock rom, its just merely editing a file in the sourcecode.
Click to expand...
Click to collapse
Me too..I thought there was a new kernel for SGA..Especially,the DEVS ONLY part in title got my attention,A small note to OP,this is not something only devs can figure out.
I can't make an OC kernel *cries*
Herpderp DXKPB.
Is there any OC kernel Available for stock roms
CF-ROOT b83
Herpderp Adreno + Tegra.
EmoBoiix3 said:
I can't make an OC kernel *cries*
Herpderp DXKPB.
Click to expand...
Click to collapse
Nobody is perfect
Is there some kernel for stock rom without oc, same speed and tweaks like oc b83 kernel but without bugs? Some stable kernel for everyday use with improvements?
Sent from my GT-S5830 using XDA App
EmoBoiix3 said:
CF-ROOT b83
Herpderp Adreno + Tegra.
Click to expand...
Click to collapse
Is this kernel stable?

{U}[KERNEL] FreeKernel for the Xperia U [NEW][TEST RELEASE]

FreeKernel for the Sony Xperia U
Sources for this kernel are here: https://github.com/keiranFTW/android_kernel_sony_u8500
By flashing this you agree that you will not hold me responsible for anything bad that happens whether caused directly or indirectly as a result of flashing this.​
I don't yet have the device, so you are the testers, if you flash, please post your experience and issues while using this kernel.
Donations are greatly appreciated, but certainly not required. If you would like to thank me for my work and help contribute to the cost of the device then there is a "donate to me" button at the side of this post.
As always, thanks are also appreciated greatly.
See second post for changelog and download.
Installation
First of all, download the kernel.elf file below, which you will flash to your device.
Test version: here
Plug your device into the computer in fastboot mode.
Now, open a command prompt/terminal and execute the following command:
Code:
fastboot flash boot kernel.elf
Then:
Code:
fastboot reboot
If you flash it, please post your experience/issues on this thread
Thx keiran, i'll try your kernel as soon as i get home tonight
the phone boots and works well for now on KA02 Xperia SSpeed ROM
il try it 2morrow...dont have much time rite now ......
but i still want to see what the proccessor is capable of....maybe bump it to 1.5ghz just to see how it goes ....
Just flashed, very good
unreal3000 said:
il try it 2morrow...dont have much time rite now ......
but i still want to see what the proccessor is capable of....maybe bump it to 1.5ghz just to see how it goes ....
Click to expand...
Click to collapse
I couldn't do that for a few reasons:
- the overclock threshold of the novathor u8500 (our "chip") isn't known
- 1.5GHz would most certainly cause your device to not even boot
- I don't yet have the device to test overclock and I don't want to damage anyone elses device by putting something in my kernel that isn't tested.
Hope you understand,
Keiran
KeiranFTW said:
I couldn't do that for a few reasons:
- the overclock threshold of the novathor u8500 (our "chip") isn't known
- 1.5GHz would most certainly cause your device to not even boot
- I don't yet have the device to test overclock and I don't want to damage anyone elses device by putting something in my kernel that isn't tested.
Hope you understand,
Keiran
Click to expand...
Click to collapse
no i mean when we have sufficient info and experience to oc that much...and just to try...definitly not for daily use probably would need to overvolt too,,, also, our phone uses the mali400 gpu...sgs2 users have managed to overclock it...im guess we could do the same? probably would be easier to impliment... ours probably is only a single or dual core gpu, compared to the sgs2 quad core gpu. but looking at the some document and write ups on mali400, it still should be very similar... possible? tks fr your hardwork!
I would like to test it but i can´t find the kernel. Some help?
I haven't had a look at the Mali400 GPU driver yet, but it runs at 200MHz single core iirc, but I will have a look at it in more depth when I have the device at least then I would be able to debug.
gengi said:
I would like to test it but i can´t find the kernel. Some help?
Click to expand...
Click to collapse
refresh da page
I don´t have a unlocked bootloader. Can´t you make a version that can be flashed with flashtools ? I can donate for your time...
gengi said:
I don´t have a unlocked bootloader. Can´t you make a version that can be flashed with flashtools ? I can donate for your time...
Click to expand...
Click to collapse
No, at the moment that is not possible unfortunately.
To flash a custom kernel, you need an unlocked bootloader
Keiran
Nooooooooooooooo... i would be a happy if i could root the device... Not easy... :silly:
is der a easy way to root our device U ???
Is der any chance tat u will develop an ICS for "Xperia U" along with ur kernal., then tat wud be nice
well i was looking arround for gpu oc...
found this- https://github.com/chris41g/LoStKernel/commit/de45493b3fe2948581f2f554dfde6ab77979c83f
http://forum.xda-developers.com/showthread.php?t=1296348
found a commit for a kernel which adds gpu clock control to mali400 gpu....
sadly i am not experienced enough to do anything more
would u?
It's a good kernel, but where's a log??? it's quite stable but nothing else...
Vitophone said:
It's a good kernel, but where's a log??? it's quite stable but nothing else...
Click to expand...
Click to collapse
That's fair enough. This was only a test release and I will be sure to release a new kernel with more features soon.
KeiranFTW said:
That's fair enough. This was only a test release and I will be sure to release a new kernel with more features soon.
Click to expand...
Click to collapse
OK, it's a good beginnig; i tried all kernels for our device and your kernel has a little more lags than Krappabel's kernel v1
Vitophone said:
OK, it's a good beginnig; i tried all kernels for our device and your kernel has a little more lags than Krappabel's kernel v1
Click to expand...
Click to collapse
That's expected, I still have a lot of work to do on this kernel

Q/A.. Zapdos kernel v5 by corphish

what will happen if i give max nd min both frequency to 1.6ghz by overclocking on zd kernel??
Maybe the ans is it will work like 1.6 ghz.
But when i do it any kernel controler as zd,thunderzap,trickstar,franco my phone just work on 1ghz only nd in deep sleep when in no use.
Some1 help me out please?
how to get the best outta it??
I am using this kernel but I can't enable swap.
vampirechamp said:
I am using this kernel but I can't enable swap.
Click to expand...
Click to collapse
Maybe this kernel doesn't support swap
BatDroid said:
what will happen if i give max nd min both frequency to 1.6ghz by overclocking on zd kernel??
Maybe the ans is it will work like 1.6 ghz.
But when i do it any kernel controler as zd,thunderzap,trickstar,franco my phone just work on 1ghz only nd in deep sleep when in no use.
Some1 help me out please?
how to get the best outta it??
Click to expand...
Click to collapse
Having the same problem.....found any solution?
Sansky12 said:
Having the same problem.....found any solution?
Click to expand...
Click to collapse
ya..
flash r10 kernel by psych.half
BatDroid said:
ya..
flash r10 kernel by psych.half
Click to expand...
Click to collapse
But in the thread it says its for cm11...and im on stock.
Also i wanna share something:
I managed to clock the kernel on 1600mhz....
But then when i checked states..all the time kernel remained on 1000mhz. see attachment. Also the cpu always showed offline...and that's funny as our phone got only 1 core and if that too becomes offline...how the hell will then our phone be working?
Then i reverted back to stock kernel....and there too cpu0 was seen offline....is that even possible?
Hope this helps you in figuring out the problem.:fingers-crossed:
Sansky12 said:
But in the thread it says its for cm11...and im on stock.
Click to expand...
Click to collapse
r10 is for all roms
flash it using a cwm recovery
Sansky12 said:
Also i wanna share something:
I managed to clock the kernel on 1600mhz....
But then when i checked states..all the time kernel remained on 1000mhz. see attachment. Also the cpu always showed offline...and that's funny as our phone got only 1 core and if that too becomes offline...how the hell will then our phone be working?
Then i reverted back to stock kernel....and there too cpu0 was seen offline....is that even possible?
Hope this helps you in figuring out the problem.:fingers-crossed:
Click to expand...
Click to collapse
that's a broken cpu_freq driver.
Working one is here
In the r10 thread i saw something about enabling/disabling camera.....could you explain it please..?
Sansky12 said:
In the r10 thread i saw something about enabling/disabling camera.....could you explain it please..?
Click to expand...
Click to collapse
disabling memory allocation for cam gives u a little more free memory.
Not necessary
BatDroid said:
that's a broken cpu_freq driver.
Working one is here
Click to expand...
Click to collapse
The download link's broken.....in the thread...can u provide another?....i'm using uc mini
Sansky12 said:
The download link's broken.....in the thread...can u provide another?....i'm using uc mini
Click to expand...
Click to collapse
disable speedMode or use a browser(ucb) js enabled
That kernel didn't boot my device....
although there was boot sound but there wasn't any boot animation.....just a black screen....and It just stuck in that black screen.....
I've moved on to cm11 ....irritated by stock.....
thanks for your suggestions anyway
Sansky12 said:
That kernel didn't boot my device....
although there was boot sound but there wasn't any boot animation.....just a black screen....and It just stuck in that black screen.....
I've moved on to cm11 ....irritated by stock.....
thanks for your suggestions anyway
Click to expand...
Click to collapse
don't flash this kernel on older firmwares

Categories

Resources