Database Users

[q] how to underclocked cpu clockspeed?

Hi Guys I just want to ask to how to underclock the cpu of my phone specifically it runs on Snapdragon 810 im not new to ubuntu.Im working on a custom rom that will fix my xperia z4 to a better use.. Pls help me i would like to underclock it from 2.5 to 1.3 . Thanks and Godblesa!

First, you must root your phone. After that install anyone app from play store for cpu control like No-frills CPU Control.
I use this, thanks to @Pandemic
http://forum.xda-developers.com/showthread.php?t=2632428

how to underclocked cpu clockspeed?
lAlKenDi said:
Hi Guys I just want to ask to how to underclock the cpu of my phone specifically it runs on Snapdragon 810 im not new to ubuntu.Im working on a custom rom that will fix my xperia z4 to a better use.. Pls help me i would like to underclock it from 2.5 to 1.3 . Thanks and Godblesa!
Click to expand...
Click to collapse
Root your phone. Install app like "Kernel auditor" and underclock. If u need full control over ur phone, try unlocking bootloader and then underclock.

Laz said:
Root your phone. Install app like "Kernel auditor" and underclock. If u need full control over ur phone, try unlocking bootloader and then underclock.
Click to expand...
Click to collapse
Thanks for the reply sir how can i underclock it with linux i mean boot.img editing since im creating a rom i dont want an app since users may pick the wrong settings. Thanks for the answer

HTC 820 intensive use - Extend battery life - Ultimate tips

/***********************************/
Intro:
I was busy looking for a solution to make battery life last longer. After some tests i realised that it was not possible to set cpu frequencies on this phone without a custom kernel. So i came up with an ultimate solution to make battery last through intensive internet use. It's been nearly 11 hours that my phone is on without screen being switched off and on wifi. Here you go.
/***********************************/
Requirements:
Rooted Htc 820
/***********************************/
Installation:
Download Kernel adiutor from the playstore - https://play.google.com/store/apps/details?id=com.grarak.kerneladiutor&hl=en
Go to the menu -> CPU -> Set cpu governors to powersave for both the BIG and LITTLE CPUs.
De-activate Core 3 and Core 4 for both big and little CPUs.
Select Apply on boot to keep the settings for next time you reboot your phone.
/***********************************/
As simple as that you will get 2 to 3 times better battery life. *Note htc default battery saver should not be on for better results. I also realised that the phone charged much faster with this. Enjoy and dont forget to press thanks if this helped you and leave some feedback about it
I took much time trying to figure out how to make my battery last longer so i'm just sharing what i experienced with the wish to help others. blessed have a nice day peeps. Love dat phone :victory:
Click to expand...
Click to collapse

Good idea man
Trying it now
Thanks ?

medohatem said:
Good idea man
Trying it now
Thanks ��
Click to expand...
Click to collapse
Okay no prob.

thanks man this worked

It requires busybox, but I can't install busybox in my phone. Is it because of S-ON?

Take this and flash it
http://forum.xda-developers.com/desire-820/development/busybox-htc-820-t3083268

Will it work on a51_dtul desire 820u dual sim Indian version.. Running on lollipop 5.0.2? Download failed it says @Oel

It works on Lollipop. Europe single version. But it shut work on every version.

Or try this Busybox. Works also on Lollipop.

For me the download is working. Here is the zip, try it first.

I m worried if it will brick my phone, if u r sure then I'll go ahead @Oel

Make a backup in your TWRP Recovery from the system und you will be on the save side.

alok singh said:
Will it work on a51_dtul desire 820u dual sim Indian version.. Running on lollipop 5.0.2? Download failed it says @Oel
Click to expand...
Click to collapse
yes it works on htc 820u

alok singh said:
It requires busybox, but I can't install busybox in my phone. Is it because of S-ON?
Click to expand...
Click to collapse
you can also find busybox on playstore and install it

Vivacity said:
/***********************************/
Intro:
I was busy looking for a solution to make battery life last longer. After some tests i realised that it was not possible to set cpu frequencies on this phone without a custom kernel. So i came up with an ultimate solution to make battery last through intensive internet use. It's been nearly 11 hours that my phone is on without screen being switched off and on wifi. Here you go.
/***********************************/
Requirements:
Rooted Htc 820
/***********************************/
Installation:
Download Kernel adiutor from the playstore - https://play.google.com/store/apps/details?id=com.grarak.kerneladiutor&hl=en
Go to the menu -> CPU -> Set cpu governors to powersave for both the BIG and LITTLE CPUs.
De-activate Core 3 and Core 4 for both big and little CPUs.
Select Apply on boot to keep the settings for next time you reboot your phone.
/***********************************/
As simple as that you will get 2 to 3 times better battery life. *Note htc default battery saver should not be on for better results. I also realised that the phone charged much faster with this. Enjoy and dont forget to press thanks if this helped you and leave some feedback about it
Click to expand...
Click to collapse
Good post but i just have a simple query "De-activate Core 3 and Core 4 " won't this effects the performance of phone during DE-activation?

h1dd3n_sn1p3r said:
Good post but i just have a simple query "De-activate Core 3 and Core 4 " won't this effects the performance of phone during DE-activation?
Click to expand...
Click to collapse
depends on which type of user you are. If you're playing heavy games ect certainly this will effect performance. But for casual users which use some normal apps or for internet browsing, making calls, messages ect; there will be no noticeable decrease in performance.

AH got that .

Xposed for HTC 820pi
Vivacity said:
/***********************************/
Intro:
I was busy looking for a solution to make battery life last longer. After some tests i realised that it was not possible to set cpu frequencies on this phone without a custom kernel. So i came up with an ultimate solution to make battery last through intensive internet use. It's been nearly 11 hours that my phone is on without screen being switched off and on wifi. Here you go.
/***********************************/
Requirements:
Rooted Htc 820
/***********************************/
Installation:
Download Kernel adiutor from the playstore - https://play.google.com/store/apps/details?id=com.grarak.kerneladiutor&hl=en
Go to the menu -> CPU -> Set cpu governors to powersave for both the BIG and LITTLE CPUs.
De-activate Core 3 and Core 4 for both big and little CPUs.
Select Apply on boot to keep the settings for next time you reboot your phone.
/***********************************/
As simple as that you will get 2 to 3 times better battery life. *Note htc default battery saver should not be on for better results. I also realised that the phone charged much faster with this. Enjoy and dont forget to press thanks if this helped you and leave some feedback about it
Click to expand...
Click to collapse
Hello dear, I am a HTC 820pi user running in Android 4.4.2. I have rooted my phone but couldn't install any custom recovery. Is it possible to install xposed framework in my rooted phone? Mind it, no custom recovery is installed in my phone!!!!

jahangirbsmrau said:
Hello dear, I am a HTC 820pi user running in Android 4.4.2. I have rooted my phone but couldn't install any custom recovery. Is it possible to install xposed framework in my rooted phone? Mind it, no custom recovery is installed in my phone!!!!
Click to expand...
Click to collapse
not sure about this. try material design xposed installer, i think there is an option to install xposed framework from within the app. dont know if this is compatible with htc 820 though.

oneplus two 4 cpu cores stopped working

Im using oneplus two for a while now.i've rooted and flashed so many ROMs. I used kernal aduitor and dropped my cores's frequencies,then i wiped and flashed a new ROM without changing it back to default settings.now after i flashed and when i open kenal aduitor only 4 cores are running and the other 4 cores are offline and im experiencing lags during normal usage.somebody help me out.im new to this android development side.

shamariyan said:
Im using oneplus two for a while now.i've rooted and flashed so many ROMs. I used kernal aduitor and dropped my cores's frequencies,then i wiped and flashed a new ROM without changing it back to default settings.now after i flashed and when i open kenal aduitor only 4 cores are running and the other 4 cores are offline and im experiencing lags during normal usage.somebody help me out.im new to this android development side.
Click to expand...
Click to collapse
try turning off everything in thermal tab and reboot

i tried it but 2 out of 8 cores never wake up and the remaining two which came to life is running at its least frequencies.

shamariyan said:
Im using oneplus two for a while now.i've rooted and flashed so many ROMs. I used kernal aduitor and dropped my cores's frequencies,then i wiped and flashed a new ROM without changing it back to default settings.now after i flashed and when i open kenal aduitor only 4 cores are running and the other 4 cores are offline and im experiencing lags during normal usage.somebody help me out.im new to this android development side.
Click to expand...
Click to collapse
I say u don't need more than 4 cores in your one plus 2 .
U say u r on custom rom . Try flashing bofella kernel . Nd install Bofella config app .
Apps are not optimised enuf to take multicore advantage .
Nd to take multicore advantage we need vulkan support .
PS : I don't know if one plus 2 does support vulkan .
App name system monitor ( free on play store )

First time to install this app, how can I enable the CPU graph like you did? Thanks!

https://www.reddit.com/r/LineageOS/comments/6wcn2d/oneplus_2_all_cores_sleeping/

shamariyan said:
Im using oneplus two for a while now.i've rooted and flashed so many ROMs. I used kernal aduitor and dropped my cores's frequencies,then i wiped and flashed a new ROM without changing it back to default settings.now after i flashed and when i open kenal aduitor only 4 cores are running and the other 4 cores are offline and im experiencing lags during normal usage.somebody help me out.im new to this android development side.
Click to expand...
Click to collapse
Might be related to CPU governor

High Battey drain, KernelOS?

Hi! Could anyone help me figure out why I have such high battery drain? I get about 2,5 hours of screen on time if I'm lucky. This is only on AOSP roms. According to GSMbattery it's "kernel is" that drains the most battery. I also have betterbatterystats installed but I'm not sure how the read that app.
This is the data from GSM -> kernel OS:
GSam Labs - Battery Monitor - Export Data
Kernel (Android OS)
Sep 7, 2017 9:42:54 AM

senny22 said:
Hi! Could anyone help me figure out why I have such high battery drain? I get about 2,5 hours of screen on time if I'm lucky. This is only on AOSP roms. According to GSMbattery it's "kernel is" that drains the most battery. I also have betterbatterystats installed but I'm not sure how the read that app.
This is the data from GSM -> kernel OS:
GSam Labs - Battery Monitor - Export Data
Kernel (Android OS)
Sep 7, 2017 9:42:54 AM
Click to expand...
Click to collapse
Lol kernelOS? That sounds like a custom ROM...
Just reinstall the system

Choose an username... said:
Lol kernelOS? That sounds like a custom ROM...
Just reinstall the system
Click to expand...
Click to collapse
It is a custom rom Lineage OS. What do you mean by reinstall system I've tried wiping everything multiple times but the battery still drains.

senny22 said:
It is a custom rom Lineage OS. What do you mean by reinstall system I've tried wiping everything multiple times but the battery still drains.
Click to expand...
Click to collapse
KernelOS doesn't exist, that's what i mean. every android iteration has something called a kernel, which manages the CPU and stuff. it's a part of the system, and not an OS at all. If you don't know what that is I wouldn't recommend that you poke around, you might slip up and DFU brick your phone...
By reinstall the system I mean:
-go to TWRP
-wipe system, data, cache, dalvik
-flash the A2017X universal bootstack, the modem file for your phone, the ROM, the OpenGApps if you want to have Google stuff, Magisk or SuperSU for root
-Reboot and use

Choose an username... said:
KernelOS doesn't exist, that's what i mean. every android iteration has something called a kernel, which manages the CPU and stuff. it's a part of the system, and not an OS at all. If you don't know what that is I wouldn't recommend that you poke around, you might slip up and DFU brick your phone...
By reinstall the system I mean:
-go to TWRP
-wipe system, data, cache, dalvik
-flash the A2017X universal bootstack, the modem file for your phone, the ROM, the OpenGApps if you want to have Google stuff, Magisk or SuperSU for root
-Reboot and use
Click to expand...
Click to collapse
I have reinstalled that way many times with many different aosp ROMs and kernels. Since reinstalls won't fix it is my only option to stay stock if I want over 4 hours of screen on time?

senny22 said:
I have reinstalled that way many times with many different aosp ROMs and kernels. Since reinstalls won't fix it is my only option to stay stock if I want over 4 hours of screen on time?
Click to expand...
Click to collapse
Try to flash a custom kernel, and if it doesn't do anything then yeah, go back to stock

I would try Wakelock detector or look into alarm section of BBS.
Can you tell us which modem you are using and which device you own?

Choose an username... said:
Try to flash a custom kernel, and if it doesn't do anything then yeah, go back to stock
Click to expand...
Click to collapse
I've tried both llama and radioactive kernel for a few days each. K guess I'll have to go back to stock.

SilentEYE said:
I would try Wakelock detector or look into alarm section of BBS.
Can you tell us which modem you are using and which device you own?
Click to expand...
Click to collapse
I don't think it's got anything to do with wakelocks as it doesn't use barely any battery when the screen is off. Overnight it might use 3-4 percent. Over 2 hours in the day it only drains 1 percent.
I use the modem from the LOS thread and I have the G model of the phone.

senny22 said:
I don't think it's got anything to do with wakelocks as it doesn't use barely any battery when the screen is off. Overnight it might use 3-4 percent. Over 2 hours in the day it only drains 1 percent.
I use the modem from the LOS thread and I have the G model of the phone.
Click to expand...
Click to collapse
You might have the cores always at max speed. Use Kernel Adiutor, and try to use the conservative governor on big and LITTLE cores

senny22 said:
I don't think it's got anything to do with wakelocks as it doesn't use barely any battery when the screen is off. Overnight it might use 3-4 percent. Over 2 hours in the day it only drains 1 percent.
I use the modem from the LOS thread and I have the G model of the phone.
Click to expand...
Click to collapse
Please try b05 modem.
I use it without problems.
Why don't you post screens of battery usage and signal strength timeline?

I've tried the conservative governor now. It didn't help.

QUOTE=Choose an username...;73715509]You might have the cores always at max speed. Use Kernel Adiutor, and try to use the conservative governor on big and LITTLE cores[/QUOTE
I've tried the conservative governor now. It didn't help.

senny22 said:
QUOTE=Choose an username...;73715509]You might have the cores always at max speed. Use Kernel Adiutor, and try to use the conservative governor on big and LITTLE cores
Click to expand...
Click to collapse
I've tried the conservative governor now. It didn't help.[/QUOTE]

senny22 said:
I've tried the conservative governor now. It didn't help.
Click to expand...
Click to collapse
How can I install with the B05 modem? Just flash I stead of the one in the LOS thread?

senny22 said:
How can I install with the B05 modem? Just flash I stead of the one in the LOS thread?
Click to expand...
Click to collapse
https://forum.xda-developers.com/showthread.php?p=73586271

senny22 said:
Hi! Could anyone help me figure out why I have such high battery drain? I get about 2,5 hours of screen on time if I'm lucky. This is only on AOSP roms. According to GSMbattery it's "kernel is" that drains the most battery. I also have betterbatterystats installed but I'm not sure how the read that app.
This is the data from GSM -> kernel OS:
GSam Labs - Battery Monitor - Export Data
Kernel (Android OS)
Sep 7, 2017 9:42:54 AM
Click to expand...
Click to collapse
Hi Senny22. Were you able to figure it out as I have the same issue with official RR ROM. I also tried to reinstall things from scratch without luck. Thanks

adromn said:
Hi Senny22. Were you able to figure it out as I have the same issue with official RR ROM. I also tried to reinstall things from scratch without luck. Thanks
Click to expand...
Click to collapse
No fix unfortunately ):

adromn said:
Hi Senny22. Were you able to figure it out as I have the same issue with official RR ROM. I also tried to reinstall things from scratch without luck. Thanks
Click to expand...
Click to collapse
senny22 said:
No fix unfortunately ):
Click to expand...
Click to collapse
Without proper screenshots and more precise information about your settings no-one can help you properly.

SilentEYE said:
Without proper screenshots and more precise information about your settings no-one can help you properly.
Click to expand...
Click to collapse
Hi. Since yesterday I run dark room as opposed to RR official. I did factory reset using twrp 3.1.1.0. Before changing roms I tried to install different modems. Currently b06 since I have G version. According to stats phone does sleep yet battery drain is high. I think last night lost like 40% or even more. Not sure when this all started. I've been using RR for months without any issue. The thing is that I was always charging my phone at night so I don't know when exactly this started to happen. Perhaps there is a hardware issue. I will try to get back to stock this weekend if no other solution is found. Cheers

Asus Zenfone 3 Deluxe_Z016D Turbo Custom ROMv04 10-16-2017

I received this beautiful device, as a gift. If you are rooted, this is my gift to you:
Release: Turbo.Zen3Lux.02
Based: Stock Rom UL-Z016-WW-5.15.44.2562
Kernel:: Stock Kernel but optimized by me
Features:
- De-bloated to the max
- Clean OS and Kernel. Checked every single code inside
- Not rooted. if you need root, just install it
- Magisk ready.... if you want it, just install it
- Sound Of The Gods Optimization. Nothing sounds alike
- ext4 fs optimizations
- de-bloated stock kernel
- all apps (system and user) have been updated to the latest..... no need to update anything
- optimized wireless and network
- not tweaked, yet
- wi-fi calling works on tmo
Status: Up!!
Screen shots:
Downloads: link
TURBO

For V3
log:
- new core power consumption optimization. cpu cores will step down according to load
- better battery life, due to cpu cores optimizations
- new su.d and init.d support
- new system databases optimizations
- new cleaning script
- latest Asus home launcher
- new optimized memory management
- corrected lcd density
- sound of the gods. sound optimization by me
- not rooted, so you can install any bank app
- optimized gpu rendering
- optimized for large music and video libraries
- all apps have been updated
- auto rotations everywhere
- de-bloated to the max
- clean OS and Kernel. No rogue apps
- optimized for best sound resolution (24bit, 192 khz)
- optimized for best battery life
- optimized for best cool temperatures
ps: safer. faster and more efficient device...
status: up!!
T.

Oh my god. Finally someone is working on a custom rom for this awesome Device. I purchased this Device last month. I ll wait a bit to test Your rom.
Please Keep Your project

xlghostlx said:
Oh my god. Finally someone is working on a custom rom for this awesome Device. I purchased this Device last month. I ll wait a bit to test Your rom.
Please Keep Your project
Click to expand...
Click to collapse
thanks....i will.........I ditch my tmo s8, for this beauty..........As crazy as it sounds, i find this baby faster and more stable, in all aspects.............next update will be 20x better than stock..... Right now is at 10x better.....lol.......
In next update all cores will go down to 300mhz, when not in use. I dont know why manufactures dont do this..... Why in hell i want all cores at max when phone is sleeping......????
Stay tuned, yesterday i left phone streaming music all day. Late afternoon phone was stll at 45%. Battery life greatly improved in next built.
T.

Thanks for this.
I will try soon.

indiana99 said:
I will try soon.
Click to expand...
Click to collapse
a true priviledge....... I will upload V3 late tonight.......
T.

I think ill go in v3 maybe

V3 out? Yeaaah Keep it my friend!

Can u post 2 antutu screen? In performance and normal mode

xlghostlx said:
Can u post 2 antutu screen? In performance and normal mode
Click to expand...
Click to collapse
hi. no time for that.
T.

TURBO2012 said:
hi. no time for that.
T.
Click to expand...
Click to collapse
Seems legit Just curios to see if any bit improvement were made, but im sure this custom is 100% performance better
Regards.

Is this rom really faster/better? I find the stock already fast and stable. And the latest firmware has stability improvements. I play games like gta, ganstar, asphalt and others. Do you suggest this rom?

Well im near to test it, need some times more..
A guide to flash would be usefull but i think it's Just this:
Unlock bootlader
Flash twrp
Wipe all (data system cache dalvik etc)
Flash the. Zip
Reboot, done. Right?
For root need the super su flashable?
More thing before mod my smartphone:
(With root)
Possibile to change boot animation?
Lock unlock sound?
Possibile to add power sound? Like on some Huawei
Will be able to use substratum?
And for xposed?
Thx in advice

gents, v04 is up!!
log:
- corrected some permissions
- added speed tweaks
- de-odexed and zip aligned some apps, for stability
- more debloat
- updated all apps
- optimized thermal and cpu core configuration
- more battery life optimizations.
- more rendering optimizations...... smoother......
note:
- please be patient on first boot.... it takes longer, since some core apps were deodexed
TURBO

Are there any certain Gapps needed, or is everything already included?

blahforme said:
Are there any certain Gapps needed, or is everything already included?
Click to expand...
Click to collapse
hi. no gaaps needed. they are included.
t

@turbo,
Can you please confirm which governor are available in your kernel?
Thanks
Sent from my ASUS_Z016D using Tapatalk

sat182 said:
@turbo,
Can you please confirm which governor are available in your kernel?
Thanks
Sent from my ASUS_Z016D using Tapatalk
Click to expand...
Click to collapse
kernel is stock (optimized by me).... default is interactive...
TURBO

Mmm, u are working really hard on it. Will be there a final Version?
And if Asus will update our Device to Android O? Will u make a turbo Version based on the stock O? (ok i know is to Early to talk about it but is Just an info )

xlghostlx said:
Mmm, u are working really hard on it. Will be there a final Version?
And if Asus will update our Device to Android O? Will u make a turbo Version based on the stock O? (ok i know is to Early to talk about it but is Just an info )
Click to expand...
Click to collapse
my roms start and end with me......... sky is the limit....
TURBO