I have a friend of mine that has an EVO and a new Kernel just rolled out for their phone. Battery life is unbelievable 2 days unplugged and 60% battery life still. Proof can be found here: h**p://184.72.239.143/mu/b8fdf248-0e64-0208.jpg
Kernel is based off of Netarchy's 4.2.1 Universal More Aggressive Kernel build 129
The info for the Kernel is found here: http://forum.xda-developers.com/showthread.php?t=876590
Any way this can be modified for Epic. Maybe some of the info found here can assist with future development.
you should post the build and kernel info as well
Possible, but difficult. The hardware is entirely different. I'll take a look at what he has changed and at least see if we have the same stuff later.
I have a friend of mine that has an EVO and a new Kernel just rolled out for their phone. Battery life is unbelievable 2 days unplugged and 60% battery life still. Proof can be found here: h**p://184.72.239.143/mu/b8fdf248-0e64-0208.jpg
The info for the Kernel is found here: http://forum.xda-developers.com/showthread.php?t=876590
Any way this can be modified for Epic. Maybe some of the info found here can assist with future development.
Xerexis said:
Any way this can be modified for Epic. Maybe some of the info found here can assist with future development.
Click to expand...
Click to collapse
I very much doubt it, but I am in no way any kind of developer, dont even play one on tv.
Anyway, this isnt anything special... I have posted similar results using the DK17 rom with no battery saver programs or killing any applications. You can see my post HERE with screenshots. 4 days, 12 hours at 5% left. Might even get better when the source code drops for 2.2 and they start creating custom kernels.
I am tempted by the extended battery as they can be found for about £30 now but it has been a while since I read anything about kernel support for the extended batteries. Anyone know which (if any) support extended batteries? Would be great if experience is first hand but that may be difficult to find...
Thanks for the help
Also once I have the info will create a list of ones in this post as a record.
This is basically what I came on here to ask as well - just installed the Hyperdroid NAND build, first time installing a NAND build. I'm using 2600mah battery and I'm not sure if this is supported with this build or not. All I really want is a fast stable build that supports my 2600mah battery. Any help is appreceated
I think it will be support with all ROM have Tytung kernel
Yep tytung R11 has support for the official extended battery, this makes it a good day
Its in the first few lines of the first post, I thought if any that would be the one.
http://forum.xda-developers.com/showthread.php?t=905060
Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.
DrawFist said:
Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.
Click to expand...
Click to collapse
I did PA3 + franco r80 (test version that you can find on the first thread) last night. This morning I checked the battery drop from 100% to 96% and 6min screen was on.
I can't find the r80, can you give me a link please?
Sent from my Nexus 4 using xda app-developers app
DrawFist said:
Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.
Click to expand...
Click to collapse
R80 is a test kernel that Franco release a couple days ago. If you ever read the OP, you'll find the link here.
http://forum.xda-developers.com/showthread.php?t=2002782
It's even written in bold letters "Test versions (if you don't know what this is PLEASE don't flash or ask what inside)"
And here's the link from the OP, http://minooch.com/franciscofranco/Nexus4/tests/
From time to time Franco likes to test a kernel that he just implemented before putting it off as a final release. For final nightly release, you can also find the link in the OP. http://forum.xda-developers.com/showthread.php?t=2002782
It's also written in bold letters "DOWNLOAD". There are two kernel versions now. For whatever android version you're using choose the correct link and download the latest one.
Last night, Franco released a nightly (r82) for verison 4.2.2.
You can find it here in the OP like I just told you. There's a .img file to push the kernel via command prompt but there's also a zip file if you click the link when you are in the 4.2.2 download link.
Next time, you should really take your time and read the thread. People will bash or ignore you.
Have fun and good luck!
P.S You're complaining about battery life and I noticed you didn't include that you have tried undervolting the frequencies. Undervolting will help you increase battery life if not a lot it should be an improvement.
scream4cheese said:
R80 is a test kernel that Franco release a couple days ago. If you ever read the OP, you'll find the link here.
http://forum.xda-developers.com/showthread.php?t=2002782
It's even written in bold letters "Test versions (if you don't know what this is PLEASE don't flash or ask what inside)"
And here's the link from the OP, http://minooch.com/franciscofranco/Nexus4/tests/
From time to time Franco likes to test a kernel that he just implemented before putting it off as a final release. For final nightly release, you can also find the link in the OP. http://forum.xda-developers.com/showthread.php?t=2002782
It's also written in bold letters "DOWNLOAD". There are two kernel versions now. For whatever android version you're using choose the correct link and download the latest one.
Last night, Franco released a nightly (r82) for verison 4.2.2.
You can find it here in the OP like I just told you. There's a .img file to push the kernel via command prompt but there's also a zip file if you click the link when you are in the 4.2.2 download link.
Next time, you should really take your time and read the thread. People will bash or ignore you.
Have fun and good luck!
P.S You're complaining about battery life and I noticed you didn't include that you have tried undervolting the frequencies. Undervolting will help you increase battery life if not a lot it should be an improvement.
Click to expand...
Click to collapse
Thanks a lot, and I noticed that part but I didnt think of it. I'm really new to all of this of flashing so this: "(if you don't know what this is PLEASE don't flash or ask what inside)" , just make me focus on the official release in the zips sections
Actually my question is if there's any guide on how to undervolt/increase battery life in this kernel, is the first kernel I've flashed so I dont have experience with voltages and things like that.
DrawFist said:
Thanks a lot, and I noticed that part but I didnt think of it. I'm really new to all of this of flashing so this: "(if you don't know what this is PLEASE don't flash or ask what inside)" , just make me focus on the official release in the zips sections
Actually my question is if there's any guide on how to undervolt/increase battery life in this kernel, is the first kernel I've flashed so I dont have experience with voltages and things like that.
Click to expand...
Click to collapse
There's no official guide. It's actually pretty simple.
But first you will need to find out what type of CPU bin you are using. What is that you say? I will try to explain it with the best of my knowledge.
Well, it's quite obvious that we have the same Snapdragon chip but not quite the same. Each one is somehow made differently based on it's quality. There are a few types, slow, nominal, fast and faster chips. What are the difference? For one, I know that they all have different voltages for each frequency and the quality of the chip will determine how much you can undervolt.
From here I am going to teach you how to find which chip you are using, you can follow this guide on the very very top section of the page.
http://forum.xda-developers.com/showthread.php?t=2048739
Second, you will need to download an app in the Play Store called "terminal emulator" (Link below).
https://play.google.com/store/apps/...251bGwsMSwxLDMsImphY2twYWwuYW5kcm9pZHRlcm0iXQ..
Here's how to find out the CPU bin:
1. Go to the app once you have finished installing it.
2. Type in "SU" to request Superuser root action
3. Type this in: "dmesg | grep PVS" (Without quotation marks) -----> http://forum.xda-developers.com/showthread.php?p=35547734&highlight=terminal+cpu+bin#post35547734
4. Finally, you should get something like this: "[ 0.873920] acpuclk-8064 acpuclk-8064: ACPU PVS: FAST"
5. At the very end of the command, you can see that the CPU quality like above. It's a fast CPU.
If you have a FAST cpu bin like 90% of Nexus 4 owners, you can undervolt up to -100mV just to be safe. You can test it farther but if your phone reboots, that means the value that you have entered is not stable.
Here are some articles on undervolting on android:
http://bigfatreality.blogspot.com/2012/03/guide-to-undervolt-android-safely.html
http://www.android.net/forum/android-rooting/58117-droid-x-guide-undervolting-guide.html
I hope this helped you in some way. Good luck!
P.S In addition to the Franco's test kernels, you can always wait until the official nightly release. Franco releases them when testing is complete. But it's nice to see what in store for us when the official nightly comes out. LOL
Hello, my s4 mini is shutting down still having a lot of battery. Like when i turn it back on it still has 74%, more or less depends when it shuts down. The battery is new.
I think it might be a software glitch associated with a bigger battery upgrade that my phone can't figure out.
Does anyone know how to deal with this problem? :angel:
Serqk4 said:
Hello, my s4 mini is shutting down still having a lot of battery. Like when i turn it back on it still has 74%, more or less depends when it shuts down. The battery is new.
I think it might be a software glitch associated with a bigger battery upgrade that my phone can't figure out.
Does anyone know how to deal with this problem? :angel:
Click to expand...
Click to collapse
I think the kernel needs to be modified, though not sure if newer custom kernels support this nowadays as I have never used an extender battery.
IronRoo said:
I think the kernel needs to be modified, though not sure if newer custom kernels support this nowadays as I have never used an extender battery.
Click to expand...
Click to collapse
I thought about the kernel too, but i couldn't find any related to battery expansions.
just a hint
sorry i cant provide detailed links or such. though i can confirm the rom has to be modified. there are some topics buried in this forum here. you have to dig. i decided to not use non-standard batteries on the serranoltexx because of the fuzz about it to get it working...
Tom Mix said:
sorry i cant provide detailed links or such. though i can confirm the rom has to be modified. there are some topics buried in this forum here. you have to dig. i decided to not use non-standard batteries on the serranoltexx because of the fuzz about it to get it working...
Click to expand...
Click to collapse
I remember there were some topics about this, but there were only kernels for the stock kitkat version i think. I am using the official lineage 14.1 version and i wish i could still use this rom with the new expanded battery and not having to go stock for it.
stock and extended battery...
is there any evidence that the stock-rom/kernel is supporting extended batteries?
Tom Mix said:
is there any evidence that the stock-rom/kernel is supporting extended batteries?
Click to expand...
Click to collapse
I couldn't find any, but i'm a bit pissed that extended batteries even exist for this phone if the phone's software is limited for the stock battery's mAh.
well...
indeed! where is light, there is darkness... imho 95% of the customers buying these batteries dont even know about the hardcoded data of battery inside the kernel... this is weird isnt it?