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I've noticed that my S3 gets hot quite often and am considering to undervolt my Galaxy s3.
Does undervolting interfere with the performance of the S3? I am the type of user who HATES when there are lags when you scroll through pages, homescreen, and app drawer.
Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS
PMentior said:
Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS
Click to expand...
Click to collapse
That is exactly right. I have two S3 phones on the FAUX Kernel .10u Version and one can under volt to 800 for min frequency and the other will not boot with these settings. Through trial and error both are stable but voltages are different.
PMentior said:
Undervolting is just lowering how much voltage a given frequency uses. It doesnt effect tye performance. The only thing you need to be careful of is instability. Not all chips can undervolt the same. If you undervolt too much for your chip you will get freezes and reboots.
Sent from my Galaxy S3 running DietICS
Click to expand...
Click to collapse
Thanks for the reply. Could you tell me what Kernel / Governor settings and how much i should undervolt to get a stable setting?
It would be great if the performance was still there while saving battery.
rnehrlf said:
Thanks for the reply. Could you tell me what Kernel / Governor settings and how much i should undervolt to get a stable setting?
It would be great if the performance was still there while saving battery.
Click to expand...
Click to collapse
I use this kernal : http://forum.xda-developers.com/showthread.php?t=1756776
Things to know about the kernal:
-If you are using a stock based rom use the sammy version.
-You need to reflash the kernal after any rom flash or you lose wifi/bluetooth
The kernal is already undervolted a little. If you want more you need to do some trial and error to find what works for your chip.
PMentior said:
I use this kernal : http://forum.xda-developers.com/showthread.php?t=1756776
Things to know about the kernal:
-If you are using a stock based rom use the sammy version.
-You need to reflash the kernal after any rom flash or you lose wifi/bluetooth
The kernal is already undervolted a little. If you want more you need to do some trial and error to find what works for your chip.
Click to expand...
Click to collapse
Thank you so much. And which app would i use to change the clockspeed and governor settings?
So that kernel will work with stock Bell rom? If i dont like the kernel, can I just reload my previous nandroid image to remove it?
Hi guys,
I am owning Galaxy Note II international version.
currently I am on Stock kernel and now planning for installing custom kernel.
But I am little bit confuse about Kernel...
First of all I am new and I have no Idea about Kernels...
I need kernel for battery life , smooth and for performance purpose...
So suggest me the BEST kernel for my Note II
or should I stick on Stock ????
Is very difficult to judge which is the best. It seems a lot of note2 user using perseus kernel as it contain st tweaks and good battery performance.
By the way, myself always stick with stock kernel which has been highly recommended by the rom dev for stability purpose.
Sent from my GT-N7100 using xda premium
Stock is the best for now
Enviado desde mi GT-N7100 usando Tapatalk 2
I've tried them all and keep coming back to Perseus.
I don't overclock or undervolt (although I used to with my S3) as in my mind the device is plenty fast enough anyway.
Perseus is rock solid for me and battery life is fantastic. Plus you get the option of fast USB Charging, Audio enhancements etc.
Another vote for Perseus kernel
2 vote for Stock Kernel
2 Vote for Perseus kernel
Now again confused
I'm a bit confused, why don't u try each kernel for 1 week or so?? Preference, usage and apps installed are different for everyone. It's ain't hard to change kernel. I was on xperia x10 and let me tell u, it's a pain to change as need to flash through computer. Now it's damn easy on note2.
Mod kernel is always better than stock or else no one would spend their time to come out with a better kernal. My vote goes to perseus kernal.
kernel
I'm using perseus with no problem.
baileyjr said:
I've tried them all and keep coming back to Perseus.
I don't overclock or undervolt (although I used to with my S3) as in my mind the device is plenty fast enough anyway.
Perseus is rock solid for me and battery life is fantastic. Plus you get the option of fast USB Charging, Audio enhancements etc.
Click to expand...
Click to collapse
It took around 6.5hours to charge from 10 to 100 !!! I had tweaked the setting ie charging current SDP and CDP to 1700mAh... Bear in mind that I never used my cell during that time... I m using perseus alpha33 !... What must have gone wrong ?? Help needed... Also My laptop does not have any special usb port that supports fast charging... it has 2 USB3.0 and 2 USB2.0 standard ports...
---------- Post added at 05:10 PM ---------- Previous post was at 05:07 PM ----------
lee yun khong said:
Is very difficult to judge which is the best. It seems a lot of note2 user using perseus kernel as it contain st tweaks and good battery performance.
By the way, myself always stick with stock kernel which has been highly recommended by the rom dev for stability purpose.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
Which ever kernel you try.. Dont put Redpill 1.30... It drained my battery like hell... I changed to Perseus and I face some problems which I am trying to figure out... But the battery drain problem is not there thankfully...
Euro_Rules said:
Hi guys,
I am owning Galaxy Note II international version.
currently I am on Stock kernel and now planning for installing custom kernel.
But I am little bit confuse about Kernel...
First of all I am new and I have no Idea about Kernels...
I need kernel for battery life , smooth and for performance purpose...
So suggest me the BEST kernel for my Note II
or should I stick on Stock ????
Click to expand...
Click to collapse
Perseus works fine for me, battery life similar to stock. For performance, you can OC the CPU to 1.8Ghz and the GPU to 800Mhz. Also it can changes the charging current, tweak the audio and calibrate the screen, which is a plus for me.
qwertyedu said:
It took around 6.5hours to charge from 10 to 100 !!! I had tweaked the setting ie charging current SDP and CDP to 1700mAh... Bear in mind that I never used my cell during that time... I m using perseus alpha33 !... What must have gone wrong ?? Help needed... Also My laptop does not have any special usb port that supports fast charging... it has 2 USB3.0 and 2 USB2.0 standard ports...
Click to expand...
Click to collapse
Even if you set it to 1700mA, the phone cannot draw more power than the usb port (i.e. 500mA for a normal USB port). If you charge it via your computer, it is normal to take around 6, 7 hours. The charger for Note II is 2A, that's why it charges in less than 4 hours for me.
nkvuong said:
Perseus works fine for me, battery life similar to stock. For performance, you can OC the CPU to 1.8Ghz and the GPU to 800Mhz. Also it can changes the charging current, tweak the audio and calibrate the screen, which is a plus for me.
Even if you set it to 1700mA, the phone cannot draw more power than the usb port (i.e. 500mA for a normal USB port). If you charge it via your computer, it is normal to take around 6, 7 hours. The charger for Note II is 2A, that's why it charges in less than 4 hours for me.
Click to expand...
Click to collapse
I use both of them now I use perseus and is better
Now I have installed perseus kernel and now testing and will give my feedback in few days.
Stock.. always the best and the most stable. Theres no need to go for anything custom
Sent from my GT-N7100 using xda premium
Dear experts!
I have an Xpera S. Recently I found that some kernels (specially stock kernels) limit input amperage while charging to 1000mAh (as I explained here: http://forum.xda-developers.com/showpost.php?p=40172449&postcount=38 )
How can I bypass this limitation if I wanna use an specific kernel which has limited the amperage?
Thanks a lot in advance
mehdicvl said:
Dear experts!
I have an Xpera S. Recently I found that some kernels (specially stock kernels) limit input amperage while charging to 1000mAh (as I explained here: http://forum.xda-developers.com/showpost.php?p=40172449&postcount=38 )
How can I bypass this limitation if I wanna use an specific kernel which has limited the amperage?
Thanks a lot in advance
Click to expand...
Click to collapse
it's not true with stock kernels. even most custom kernels dont have that amperage limit.
i have xperia s and ep850. i get the amperage input under 1000mA because the phone use some of em, and (maybe) bad electricity in my home. to get more than 1000mA (the max is about 1200mA with ep850), i usually turned off the data, and set it to 2G only. and if it still wont show more than 1000 mA (i use android tuner to check the amperage), i plug & re-plug the charger. but still, the kernel can accept more than 1000 mA.
The limitation is related to the temperature.
I don't remember the right value, but more is the temperature and less is the intensity "A" , "mA" .
Sent from my LT26i using xda app-developers app
m1st3r1 said:
it's not true with stock kernels. even most custom kernels dont have that amperage limit.
i have xperia s and ep850. i get the amperage input under 1000mA because the phone use some of em, and (maybe) bad electricity in my home. to get more than 1000mA (the max is about 1200mA with ep850), i usually turned off the data, and set it to 2G only. and if it still wont show more than 1000 mA (i use android tuner to check the amperage), i plug & re-plug the charger. but still, the kernel can accept more than 1000 mA.
Click to expand...
Click to collapse
Thanks for your attention.
You know my operator only support 2G network right now and I always turn data off!
You are right! XS stock kernel does not have this limitation! I use custom Kernel (Advanced custom Kernel v17). For me this one is better for some reasons...! But there is an amperage limitation while having this kernel installed on my phone! Besides, my friend have Xperia SL with stick kenel and he also suffers this limitation!
The question is " Is there any solution or sth to bypass this limitation in kernels that have it?"
Forzaferrarileo said:
The limitation is related to the temperature.
I don't remember the right value, but more is the temperature and less is the intensity "A" , "mA" .
Sent from my LT26i using xda app-developers app
Click to expand...
Click to collapse
Thanks bro!
Unfortunately I didn't get what u mean! Could you explain it more clearly?
thanks a lot
mehdicvl said:
Thanks for your attention.
You know my operator only support 2G network right now and I always turn data off!
You are right! XS stock kernel does not have this limitation! I use custom Kernel (Advanced custom Kernel v17). For me this one is better for some reasons...! But there is an amperage limitation while having this kernel installed on my phone! Besides, my friend have Xperia SL with stick kenel and he also suffers this limitation!
The question is " Is there any solution or sth to bypass this limitation in kernels that have it?"
Thanks bro!
Unfortunately I didn't get what u mean! Could you explain it more clearly?
thanks a lot
Click to expand...
Click to collapse
if u encountered such kernels with limitations (from my experience, the (very) early version of Nova kernel (cm10 kernel) kinda has this limitation, but later versions dont have it), there's nothing you can do except changing your kernel. i've used advanced custom kernel (not the latest though, as i've re-locked my bootloader) and i dont think that it has this limitation, eg: charging went very fast (1200 mA with ep850). so i guess maybe change your kernel (though i doubt the newer version of that kernel has the limitation )
i think what Forzaferrarileo mean is you shouldnt charge your phone when the phone's temperature is hot, as it'll only accept lower current.
I've rooted my G. Note2 using the CF-Auto-Root-t03g-t03gxx-gtn7100.tar.md5, after got it rooted, the battery is charging very slowly even when decreased brightness, limited background processes to 4, tried different USB cables, closed any unnecessary running apps, but always it's still very slow in charging.
I'm using the original white AC adapter which delivers 1500 mA current, I found at xda-developers.com in some like threads that after rom flash a battery needs to be calibrated, I thought that's the issue.
I've tried to remove the batterystats.bin and rebooted then tried to charge while my phone is turned off, got over 8:30 hours to get it fully charged from 0 to 100%, i think this is a way to calibrate the battery, as well used an app to calibrate the battery after charging reached the 100% but it still taking long time to get charged 75 -81 in 41 minutes.
So i'm asking if you have any other suggestions/advices, this is gonna be greatly appreciated.
Download something like Galaxy Charging from the Play store and check what rate your phone is charging at. I flashed a custom rom and noticed that charging was extremely slow. Ended up flashing the red pill kernel which made a massive difference...
Sent from my GT-N7100 using xda app-developers app
wax_digital said:
Download something like Galaxy Charging from the Play store and check what rate your phone is charging at. I flashed a custom rom and noticed that charging was extremely slow. Ended up flashing the red pill kernel which made a massive difference...
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
What do you mean by "flashing the red pill kernel", i have galaxy charging lite , and the avg. voltage is 4.1V
Its a custom kernel Redpill search you will find it
Sent from my GT-N7100 using xda premium
What aukhan said. Check your mAh charge rate using that app as it'll give you an indicator of how well it's charging the phone. With the red pill kernel I'm getting around 1700 mah as opposed to the 400 mAh when it was charging really slow!
Sent from my GT-N7100 using xda app-developers app
wax_digital said:
What aukhan said. Check your mAh charge rate using that app as it'll give you an indicator of how well it's charging the phone. With the red pill kernel I'm getting around 1700 mah as opposed to the 400 mAh when it was charging really slow!
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
Using the current app i'm getting the values
Maximum: 300 - 400
Now 1698
Avg 300 - 400
I've tried another charger and usb cable, always the same, i've reached 76 from 50 in 2 hours.
Really very frustrating, i need anybody to help in this issue.
I'll try to install the Redpill kernel later today, and hopefully this gonna to fix the issue.
That's strange. Seems to suggest it's currently working fine although not sure why the maximum is so low (mine is also showing a lower maximum figure!).
Aye, try the kernel. Think it makes the phone treat any cable as just a power cable only so charge should theoretically be rapid.
Actually, just had a thought... Have you got another battery you could try charging? If the phone is receiving the correct level of charge maybe it's the battery that can't hold it properly.
Sent from my GT-N7100 using xda app-developers app
wax_digital said:
That's strange. Seems to suggest it's currently working fine although not sure why the maximum is so low (mine is also showing a lower maximum figure!).
Aye, try the kernel. Think it makes the phone treat any cable as just a power cable only so charge should theoretically be rapid.
Actually, just had a thought... Have you got another battery you could try charging? If the phone is receiving the correct level of charge maybe it's the battery that can't hold it properly.
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
What's " the correct level of charge " ?
Also Battery calibration can helps in anyway? , i've tried twice as well tried twice to manually rm /data/system/batterystats.bin, always no difference, or am i doing it wrong ?
As well if you can provide with a direct link to Redpill download, the following http://forum.xda-developers.com/showthread.php?t=1975938 keeps redirecting to the thread again & again.
I've tried this version RedPill Rev1.47 (For Samsung Based ROM's for N7100)
http://api.viglink.com/api/click?fo...)</font></b>&jsonp=vglnk_jsonp_13703548698506
But got signature verification failed
Sent from my GT-N7100 using xda app-developers app
englinux said:
I've tried this version RedPill Rev1.47 (For Samsung Based ROM's for N7100)
http://api.viglink.com/api/click?fo...)</font></b>&jsonp=vglnk_jsonp_13703548698506
But got signature verification failed
Sent from my GT-N7100 using xda app-developers app
Click to expand...
Click to collapse
here Flash it with Mobile Odin , TWRP , CWM it will work
aukhan said:
here Flash it with Mobile Odin , TWRP , CWM it will work
Click to expand...
Click to collapse
SORRY some more details ? What's TWRP AND if u have a guide on how to flash it with mobile odin? As well why I got this "signature verification failed" ?
englinux said:
SORRY some more details ? What's TWRP AND if u have a guide on how to flash it with mobile odin? As well why I got this "signature verification failed" ?
Click to expand...
Click to collapse
ok have you downloaded this .zip file ?
aukhan said:
ok have you downloaded this .zip file ?
Click to expand...
Click to collapse
Got it installed thanks, while charging, Galaxy charging has the values Max:1300 now: 1700 & Avg:1300
englinux said:
Got it installed thanks, while charging, Galaxy charging has the values Max:1300 now: 1700 & Avg:1300
Click to expand...
Click to collapse
Glad it was fixed .
now your charging will be fast assure you that .
aukhan said:
Glad it was fixed .
now your charging will be fast assure you that .
Click to expand...
Click to collapse
What's difference in this kernel fixed the charging issue?
englinux said:
What's difference in this kernel fixed the charging issue?
Click to expand...
Click to collapse
you could go trough the Redpill thread that has entire information ,.
aukhan said:
you could go trough the Redpill thread that has entire information ,.
Click to expand...
Click to collapse
That's it >> "Included patches for performance, stability and battery life" ? if It's , still It's not clear.
aukhan said:
Glad it was fixed .
now your charging will be fast assure you that .
Click to expand...
Click to collapse
Really very frustrating, after flashing the Redpill kernel into my Galaxy Note2, that was mainly to fix a slow charging issue and it has been fixed for the last 17 days, again today I got the same issue happening, a very slow charging again, no clue what's wrong again, the current dropped from 1200 to 700 for Max and Avg. values, and "now" value is 1698. Wonder what happened ! any advices will be greatly appreciated.
I didn't change anything neither installed any new App, not sure if i have to reflash the Kernel or what?!
aukhan said:
Glad it was fixed .
now your charging will be fast assure you that .
Click to expand...
Click to collapse
Hey mate,
No comment or any suggestions ? really it's terrible
Max and Avg values of "Galaxy charging current" starts with at most 1500 then start dropping to like 700 - 500 ?
Any idea what can be the issue and if i can have any more diagnosis tips/tools ?
Don't tweak anything with software and just visit samsung store, ask for original cable (they may have one in working at least) and charge and calibre current with gcc application if it is 1800 with new cable then just purchase it. That's it. And most diagnostic.
I have observed more than 90% culprit is cable (note2 original cable is just crap)
Sent from my GT-N7100 using xda premium
Original thread for Nexus 6P is located here:
http://forum.xda-developers.com/nex...t/xthermal-mod-fast-charging-cpu-gpu-t3433784
Hi Guys,
After a very successful journey from Redmi 1s to Nexus 6P, I'm now here with my Xthermal Mod for Mi 5.
I'm personally testing the mod since a week and will be rolling out all the profiles soon.
Till then I need your help to test it out in different conditions.
Please join and help me to make it more better this time.
I'm attaching Fast Charge only profile as of now.
Edit: Xthermal Performance + Back to stock added...
baszu said:
I've tried this with MIUI 8 (6.9.29), but Ampere still showing only 1500.
Click to expand...
Click to collapse
1. Stock charger supports max 2000 mah.
2. Max Charging current is controlled by the Kernel itself.
As soon as battery level increases the charging current goes down.
You might have observed that if battery level is below 50% then charging is super fast but after 60% it is very slow.
If you (your apps) do not use the handset resources much while charging then you do not need this mod.
If you use your handset while charging (which is strongly not recommended) example for gaming, browsing or chatting etc then the temperature rises slowly slowly.
The stock limits are very aggressive and it starts throttling and your cpu, gpu and charging speeds goes down.
So this mod comes into play here and delays the throttling a bit resulting in better cpu, gpu and charging results.
Does it produces more heat?
Heat is directly related with performance. This mod itself doesn't produce any heat but yes delaying the throttling means the handset is able to use all your resources even if temps rises hence may result in a bit more heat + more performance.
The results are more amazing if you have a fast charger.
I believe there is no risk in flashing this but still don't blame me for all your actions.
******************OTA doesn't break after flashing the zips***************
contact me:
telegram @ravinder0003
email [email protected]
Thanks
Reserved
Is there any requirements? Miui? Cm? Kernel?
Please upload the "back to stock" for mi 5. Thanks
I don't see "thermal-engine-8996.conf" file in my rom. Assume I can just delete the file (or re-install rom) to revert to default.
By the way, do you know what's default value for each before this mod? Hope this mod not increase the threshold too much. Worry it will boom.
I've read original thread, what I understand is our phone will charge faster but trade off with hotter while charging.
D:\adb>adb shell "su -c 'ls -l /system/etc/themal*'"
/system/etc/themal*: No such file or directory
Click to expand...
Click to collapse
fuxmen said:
Is there any requirements? Miui? Cm? Kernel?
Click to expand...
Click to collapse
I'm using this with miui 8...
I haven't gone through cm ...
So as of now miui 8 only...
Will flash cm tomorrow and will.update the zip...
hiepthong said:
Please upload the "back to stock" for mi 5. Thanks
Click to expand...
Click to collapse
Ok wait bro
I've tried this with MIUI 8 (6.9.29), but Ampere still showing only 1500.
Waithing performance profile
op updated...
waiting for perfomance profile + fast charging .
kmzway000 said:
waiting for perfomance profile + fast charging .
Click to expand...
Click to collapse
Added to op...
Thx for supporting
Is this the mod with both fast charging and xtreme performance baked in?
Can i flash both of them at once?
northropgrummanrq180 said:
Is this the mod with both fast charging and xtreme performance baked in?
Click to expand...
Click to collapse
Yupp...
Fast charge is there in every zip except in back to stock which have stock file...
hiepthong said:
Can i flash both of them at once?
Click to expand...
Click to collapse
No need to flash both as fast charge is there in performance zip too...
Just flash performance zip.on miui 8 6.9.29 i feel the phone faster then before,fast charging work good,just for test from 20%to100% 50min.Good joob
Just flashed it too. Phone seems much faster will see about charging and battery drainage but I prefer faster phone over battery always
Would you mind explaining technically what those mods do? e.g.: governor, upper and lower frequency limit, etc. Some of us like to know the geeky details
@leledumbo
Read the op bro...
If u need more info then do ping me or contact me on telegram ...