[Q] Choices for UnderVolting with AOSP ROM - Droid Incredible Q&A, Help & Troubleshooting

Hey there!
Well here's my new question. I am going on a flight tomorrow that's going to last about 10 hours total. From what I understand Undervolting should increase my battery life without sacrificing speed/power. Is this true?
Secondly, what are my options? please include direct links to the zip files or provide the ones you have/use! I really appreciate it!

Just read this thread. It has links to the mods.
http://forum.xda-developers.com/showthread.php?t=1052026

frostincredible said:
Just read this thread. It has links to the mods.
http://forum.xda-developers.com/showthread.php?t=1052026
Click to expand...
Click to collapse
Thanks but I am aware of his stuff, are there any others?

Reizvoller said:
Thanks but I am aware of his stuff, are there any others?
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Click to collapse
I think all (most?) kernels allowing undervolting are using the sysfs interface as described in that thread - check out chad0989's incredikernel thread and his sysfs instructions for more info.

Reizvoller said:
Thanks but I am aware of his stuff, are there any others?
Click to expand...
Click to collapse
Mine offer the most amount of options so that undervolting will work for you. The undervolt script in the incredikernel might be too aggressive for some phones.

Personally I have seen the best results with Cyanogenmod 7, Ultimate Droid or OMFGB and this radio:
2.15.00.11.19 - http://morph3k.net/radios
along with either of these kernels:
http://forum.xda-developers.com/show...t=[kernel]
http://forum.xda-developers.com/showthread.php?t=885217
At the moment I'm on OMFGB with incredikernel and the radio specified above. I can get almost get a solid 24 hours out of it with moderate use. No matter what under heavy use it drains quick. Each phone can be different though, I have seen lots of opinions about this subject.

Related

[Q] MIUI Question

whats the best kernel to use with miui v1.2.11 any suggestions from anyone would be appreciated also could you include a link if possible if not i will use the search thank you
I'm still on 1.1.28, using savage 1.6. Best kernel I have ever flashed by far.
Does the front camera work with that kernel ?
Not sure, I've got the MIUI cam with no FFC. I'm pretty sure it will work with the CM cam app.
well i guess there isnt any working links to the v1.6
You may not find the exact one, but this is the link to the Savaged-Zen Kernels.
http://mirror.munkibizness.com/
h_townesp785 said:
well i guess there isnt any working links to the v1.6
Click to expand...
Click to collapse
This is the cfs-sbc version http://db.tt/XIeVavc
ok i got another question what is the difference between sbc and nosbc sorry if this is noob question just makin sure because reading reviews and they say that sbc can cause problems with hardware and batteries
h_townesp785 said:
ok i got another question what is the difference between sbc and nosbc sorry if this is noob question just makin sure because reading reviews and they say that sbc can cause problems with hardware and batteries
Click to expand...
Click to collapse
I believe SBC is a trickle charge. It does not have the instant battery % drop when you pull it off of the charger. Some people say it hurts your battery, but I've been using them for, I believe, over two months and I have had no problems.
A lot of people have had good luck with sbc but there have been some casualties. Nobody reported a single battery death until sbc kernels were introduced and within days there were I think like 14 or 15 people whose batteries died and the common factor between all of them- sbc. That being said, there hasn't been any reports like that for a while now, so maybe the devs have figured out how to make them safer. I don't follow the sbc kernel threads so that's just a guess.
Not trying to turn this into an sbc/no sbc debate, just trying to give OP a heads up.

[Q] Best Sense Kernel

So, been seeing a lot of new AOSP kernels being released, which is great because i have been using CM7...
However, i am trying out some new ROMS (sense) and looking for Kernels other than HTC#15 and Net's.
Lets keep the thread uncluttered... I am not looking for opinions of this is best or not... but just some other options that i can try out. If i get enough options, i can just update the OP and we can all use it as a resource... ??
Here are my priorities:
1. Battery life
2. performance
Battery life is by far the most important thing for me.
Any suggestions would be appreciated.
This thread should be closed ASAP. This is going to lead to multiple people suggesting multiple kernels and arguing over which is the best. One of the unwritten rules of kernels is "Do not ask which kernel is the best." You have try them out for yourself and give them a few days to settle in.
Product F(RED) said:
This thread should be closed ASAP. This is going to lead to multiple people suggesting multiple kernels and arguing over which is the best. One of the unwritten rules of kernels is "Do not ask which kernel is the best." You have try them out for yourself and give them a few days to settle in.
Click to expand...
Click to collapse
Ok.. will rewrite the OP, but i am just looking for options.. i will decide what i like, but the only options i am really finding are Net and HTC#15. There was not 1 mention of "which is best"
But thanks for answering my questions.....
It's nothing personal. It's just that theses threads never end well.
Try HTC #17 (Requires you to be on PRI 1.77 and radio 09.01)
or
Any of Net's, like you said.
Product F(RED) said:
It's nothing personal. It's just that theses threads never end well.
Try HTC #17 (Requires you to be on PRI 1.77 and radio 09.01)
or
Any of Net's, like you said.
Click to expand...
Click to collapse
I get it though.. i have spent my fair share of time reading through page after page of useless BS...
Best advice is to acquire the various kernels out there.
Try each one out for a few days to see what works best with your hardware.
Finally, don't forget to mess with governors and their settings. That will have a bigger impact on your battery/performance criteria.
I have only used one for 5 minutes, as I run AOSP, but the netarchy kernels are nice.
gpz1100 said:
Best advice is to acquire the various kernels out there.
Try each one out for a few days to see what works best with your hardware.
Finally, don't forget to mess with governors and their settings. That will have a bigger impact on your battery/performance criteria.
Click to expand...
Click to collapse
Right.. I get that and is what i typically do.. just looking for other Kernels TO try.....
HTC #17 (awesome, but best battery life when used on Myn's RLS4 or any pre-3.70 OTA based ROM)
HTC #15
The bajillion combinations of Netarchy-Toastmod kernels (seriously, there are a lot he's made. Static Undervolt, No Undervolt, HAVS, noHAVS, SBC, noSBC, etc).
Ziggy's (not a huge fan of these, but people seem to like them).
That's about it unless someone else wants to chime in.
frettfreak said:
So, been seeing a lot of new AOSP kernels being released, which is great because i have been using CM7...
However, i am trying out some new ROMS (sense) and looking for Kernels other than HTC#15 and Net's.
Lets keep the thread uncluttered... I am not looking for opinions of this is best or not... but just some other options that i can try out. If i get enough options, i can just update the OP and we can all use it as a resource... ??
Here are my priorities:
1. Battery life
2. performance
Battery life is by far the most important thing for me.
Any suggestions would be appreciated.
Click to expand...
Click to collapse
Ziggy's kernels have a great balance between the 2 priorities, and battery life is great.
And just a suggestion, if you are not "looking for opinions of this is best or not". Then you might want to change the title of this thread, its a little contradicting.
Product F(RED) said:
HTC #17 (awesome, but best battery life when used on Myn's RLS4 or any pre-3.70 OTA based ROM)
HTC #15
The bajillion combinations of Netarchy-Toastmod kernels (seriously, there are a lot he's made. Static Undervolt, No Undervolt, HAVS, noHAVS, SBC, noSBC, etc).
Ziggy's (not a huge fan of these, but people seem to like them).
That's about it unless someone else wants to chime in.
Click to expand...
Click to collapse
hmmm.. kinda what i was thinking. Seems like there is a huge push for AOSP stuff though....
Yellowcard8992 said:
And just a suggestion, if you are not "looking for opinions of this is best or not". Then you might want to change the title of this thread, its a little contradicting.
Click to expand...
Click to collapse
GREAT POINT!! lol... I clicked edit on the OP though, and it wouldn't allow me to change the title.... ? How do i do that?
frettfreak said:
GREAT POINT!! lol... I clicked edit on the OP though, and it wouldn't allow me to change the title.... ? How do i do that?
Click to expand...
Click to collapse
click the go advanced button.
id also like a kernel for my stock 3.70. preferably one with an OC without the need for set cpu.
Ziggy works best for me but like I said that is just me, different phones seem to work different better with different kernels. It's all about what your phone likes
Sent from my Evo while i should be working
As crazy as this might sound having the BEST battery life is hard to find. I'm using a regular battery not extended so I found that no matter what kernel combination I use there really is no AWESOME battery life. These types of phones on a regular battery just aren't meant to last all day. It ticks me off when people brag and they say things like "oh my evo last all day and etc" . Why brag and you're not even a heavy user like normal people. Most the people who brag about their ultra battery life aren't heavy users, and their phones are always sleeping. I use my phone all day, constant texting, twitter, Facebook, tapatalk, and wifi web browsing from about 8am-5pm. When I say heavy I mean heavy. Around 5pm my phones usually about 20 or 30% and this is perfect for me at least. I get home at 5 so that's my peak usage. I've used about every kernel/rom/tweak combination that exists and I don't think aosp has better batt life over sense and vice versa. Right now I'm using myns 2.2 with the 4.2.2 net/toast kernel sbc with the 1.77 prl and my phone can go from 8am to at least 7pm with very heavy usage. This by far the best I've gotten out of my 004 evo over and aosp/sense rom especially with everything working perfectly. Cheers.
Sent from my Evo in your sisters closet using Tapatalk

[Q] gingerbread-evo-deck [1.3][2.3.7 Stable] - Battery life questions

First off, thank you to everyone who contributes to this community! I have been on here for some time now and the help/information available in these forums is amazing!
I hope that I am not being a noob by starting this thread and apologize ahead of time if I am incorrectly posting this. As I do not have very many posts under my belt I am unable to post to the development thread nor does it seem according to the forum rules that I should be posting questions like this there anyway. The last thing I want to do is upset anyone in this fabulous community.
Now down to business!
I am running the "gingerbread-evo-deck [1.3][2.3.7 Stable]" and just have a couple questions concerning my final setup to maximize battery life. I am in love with this ROM and all things deck but do have a couple concerns. Battery life is fantastic for me while phone is not in use but the battery does seem to drain quickly while actually using it. I am currently using Tiamat_Evo-v4.0.6-sbc kernel and have been running it for about a week now.
Q1: Should I be using Tiamat_Evo-v3.3.7-sbc Kernel(or "Lee" as I believe it is commonly referred to)? And, does this kernel offer full support for wimax and hdmi? From what I gather this seems to be the preferred kernel for AOSP ROMs.
Q2: What is proxsensorfix.zip? I saw this as an attachment in the development thread. Is this the fix for the Android System spike in battery stats? Will this improve battery life, and is it compatible with this ROM? Are there any negatives to applying this fix?
Q3: I think I have seen it mentioned that by downgrading the radio from the most recent release that battery life can be improved. Can anybody confirm this? What are thoughts on this?
Thank you in advance for any info that can be given on these subjects!
Dieselshroom said:
First off, thank you to everyone who contributes to this community! I have been on here for some time now and the help/information available in these forums is amazing!
I hope that I am not being a noob by starting this thread and apologize ahead of time if I am incorrectly posting this. As I do not have very many posts under my belt I am unable to post to the development thread nor does it seem according to the forum rules that I should be posting questions like this there anyway. The last thing I want to do is upset anyone in this fabulous community.
Now down to business!
I am running the "gingerbread-evo-deck [1.3][2.3.7 Stable]" and just have a couple questions concerning my final setup to maximize battery life. I am in love with this ROM and all things deck but do have a couple concerns. Battery life is fantastic for me while phone is not in use but the battery does seem to drain quickly while actually using it. I am currently using Tiamat_Evo-v4.0.6-sbc kernel and have been running it for about a week now.
Q1: Should I be using Tiamat_Evo-v3.3.7-sbc Kernel(or "Lee" as I believe it is commonly referred to)? And, does this kernel offer full support for wimax and hdmi? From what I gather this seems to be the preferred kernel for AOSP ROMs.
Q2: What is proxsensorfix.zip? I saw this as an attachment in the development thread. Is this the fix for the Android System spike in battery stats? Will this improve battery life, and is it compatible with this ROM? Are there any negatives to applying this fix?
Q3: I think I have seen it mentioned that by downgrading the radio from the most recent release that battery life can be improved. Can anybody confirm this? What are thoughts on this?
Thank you in advance for any info that can be given on these subjects!
Click to expand...
Click to collapse
Q1: 3.3.7 SBC or 4.0.8 SBC kernels have worked great for me on Deck GB 1.3.
Q2: Not sure about proxsensorfix.zip, but the phone.apk w/o proximity is what I use, as I've heard the proximity sensor does use more CPU, which drains battery faster.
Q3: I'm using the latest radio and WiMax, and experience no problems whatsoever.
IMHO, Deck's 1.3 is the best ROM out there hands down. I've been using his AOSP ROMs from the start and have not been disappointed. PM me if you have any questions......
Have you considered using vipermod to undervolt? it will save you more battery
Sent from my PC36100 using XDA App
evo4gnoob said:
Have you considered using vipermod to undervolt? it will save you more battery
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Thanks for the suggestion. I have not done any undervolting yet but was thinking about looking into it.
Okay, I'm pretty settled in on the Lee kernel now and have undervolted 50mv. Things are running pretty smooth.
Another question tho! Is the V6 Supercharger suppose to help with battery life at all? This is not entirely clear to me. And if not, I don't see much need for it as my phone seems to run just fine without it.
Also... android system spike in the battery stats, seemingly after a phone call. Is there a fix for that? This also is unclear.
click the link in my sig

Best kernel with stock rom

Hi , I wanna keep on with custom rom but I wanna change my kernel , what's the best battery and performance kernel , what do u think?
Yay, awesome thread
Therollingstone said:
u know what , ive been using android for two years ( htc , samsung , lg ) and dont judge me as using this phone efficient , I have knowladge about computer and smartphone almost your age
Click to expand...
Click to collapse
s2d4 said:
Yay, awesome thread
Click to expand...
Click to collapse
Was your post *REALLY* necessary?
So, to answer your question:
I don't believe most of the kernels are for the stock ROM, with the exception of faux123's. I have followed faux over from multiple devices, and his kernels have always gotten the best battery life! It also doesn't hurt that you can get over 30 hours with over 3 hours screen on time with his kernel!
[Kernel][GSM][Hybrid-3.0.21]ICS4.0.2/3/4/UV,OC,TUN,CIFS,FIOPS,OTG(v013) [Feb-18]
Also, if its battery life your after as opposed to performance, you should go with the mainline version of the kernel.
KiNG OMaR said:
Was your post *REALLY* necessary?
Click to expand...
Click to collapse
nope, just like the thread. his years of "knowladge" didnt help him.
I'm running on Franco 17.2 kernel (too lazy to update to 18.6) with the "stock" 4.0.4 rom and I'm seeing a pretty good battery life improvement over stock kernel.
I collected some metrics last night...
11h 6m on battery with 2h 48m display on time (auto brightness). Wifi was on almost the entire time.
I know people have gotten better with non-stock roms (4 hour display time over 16 hours), but with the stock rom, I'd say it's an improvement (used to only get 8-10 hours with negligible screen time).
I have been using franco 18.6 with the leaked stock 4.0.4 with good results so far, but have seen crashes on 4g/3g border areas. I can't really say if it's the best, because my sample size is a single custom kernel.
Used the app off the android market for OTA kernel updates; and am reluctant to try other kernels until more apps are available like that.
There really is not definitive answer on what the best kernel is for everyone.
Each person uses their phone differently and differing configurations will alter results as well.
Your best bet is to experiment yourself. Flash a kernel and let it run a couple days, trying to take note of how your on screen performance is, what you have run, also how the phone sleeps.
Then you move on and try the next, that is part of the fun!
s2d4 said:
nope, just like the thread. his years of "knowladge" didnt help him.
Click to expand...
Click to collapse
The point you don't understand is I'm still enough humble to ask people decisions , The experience of users is the most reliable information for me , I havent been a big head and I wont , I still ask people that what's the best kernel with the stock rom
KiNG OMaR said:
Was your post *REALLY* necessary?
So, to answer your question:
I don't believe most of the kernels are for the stock ROM, with the exception of faux123's. I have followed faux over from multiple devices, and his kernels have always gotten the best battery life! It also doesn't hurt that you can get over 30 hours with over 3 hours screen on time with his kernel!
[Kernel][GSM][Hybrid-3.0.21]ICS4.0.2/3/4/UV,OC,TUN,CIFS,FIOPS,OTG(v013) [Feb-18]
Also, if its battery life your after as opposed to performance, you should go with the mainline version of the kernel.
Click to expand...
Click to collapse
Thank you very much , I'm really happy with your post.
Therollingstone said:
The point you don't understand is I'm still enough humble to ask people decisions , The experience of users is the most reliable information for me , I havent been a big head and I wont , I still ask people that what's the best kernel with the stock rom
Click to expand...
Click to collapse
Well, you obviously failed to realise the point, this kind of thread pops up everyday. So you failed search.
Its like a pair of shoes, you need to try and find what is best for you. Best kernel threads will always be retarded to ask because it is a preference, like an anus, everybody has one.

CyanogenMod9 Kernel vs. AOSP KT747 Kernel by Ktoonsez

Hey guys,
Still a bit noob concerning kernels so bear with me.
I am running CyanogenMod 9 on my AT&T SIII with their kernel. Would there be a lot of advantages to flash the KT747 kernel by Ktoonsez? Would it be faster?
If I flash this kernel, how do I go back to the CM9 kernel in case of problems?
Thanks!
t.square said:
Hey guys,
Still a bit noob concerning kernels so bear with me.
I am running CyanogenMod 9 on my AT&T SIII with their kernel. Would there be a lot of advantages to flash the KT747 kernel by Ktoonsez? Would it be faster?
If I flash this kernel, how do I go back to the CM9 kernel in case of problems?
Thanks!
Click to expand...
Click to collapse
Hi, I cant say it would have an advantage or be any faster or not because I haven't run CM9. I do use KT747 though. Only thing I can say is try it. If not you should be able to just flash your kernel back. Or just make a nandroid, which ya should do anyways
This thread is going to get closed pretty quick I'm sure. VS threads are not really cool to have and they all turn into personal opinion. You need to just try the kernels out for yourself and then decide. No one can give you an accurate answer for this.
jasvncnt1 said:
Hi, I cant say it would have an advantage or be any faster or not because I haven't run CM9. I do use KT747 though. Only thing I can say is try it. If not you should be able to just flash your kernel back. Or just make a nandroid, which ya should do anyways
Click to expand...
Click to collapse
Ok thx.
Didn't actually think to use the nandroid when changing kernels. I use it before changing roms but didn't know it worked for kernels too, which should've been obvious.
How do you find KT747? Does the undervolting make a big difference on battery life and/or performance?
task650 said:
This thread is going to get closed pretty quick I'm sure. VS threads are not really cool to have and they all turn into personal opinion. You need to just try the kernels out for yourself and then decide. No one can give you an accurate answer for this.
Click to expand...
Click to collapse
Sorry about that. I've just never tried a different kernel before and I was feeling a bit insecure.
t.square said:
Ok thx.
Didn't actually think to use the nandroid when changing kernels. I use it before changing roms but didn't know it worked for kernels too, which should've been obvious.
How do you find KT747? Does the undervolting make a big difference on battery life and/or performance?
Click to expand...
Click to collapse
Here is the thread with download
http://forum.xda-developers.com/showthread.php?t=1756776
UV/OC is really different for each phone. I just run the default settings as is after installed.
jasvncnt1 said:
Here is the thread with download
http://forum.xda-developers.com/showthread.php?t=1756776
UV/OC is really different for each phone. I just run the default settings as is after installed.
Click to expand...
Click to collapse
Ok, I'll check it out in detail. Thanks.
2 options to revert kernel changes.
1. Nandroid before installing the kernel. Then only restore system when you want to revert. Its quicker than restoring everything.
2. Reflash the ROM zip. It will reinstall the system without erasing your personal data.
Sent from my Xoom using XDA Premium HD app
Ok, I'll try it. Thanks!
Sent from my SAMSUNG-SGH-I747 using xda premium
task650 said:
This thread is going to get closed pretty quick I'm sure. VS threads are not really cool to have and they all turn into personal opinion. You need to just try the kernels out for yourself and then decide. No one can give you an accurate answer for this.
Click to expand...
Click to collapse
It's pretty absurd to say this. I understand that line of reasoning with ROMs, different roms do very different things, prioritize different ussage patterns, and apearl to different astetics.
Kernels are..... just Kernels. There are literaly only 3 metrics to judge a Kernel by:
1) Performance (how fast is stuff, this may or may not include overclocking).
2) Stability (self explanatory).
3) Battery life (also self explanatory).
There really isn't much subjective here. Some Kernels are just plain better than others. If one kernel is faster, and another has better battery life, then just say that. That's exactly the kind of thing that is helpful to all.

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