yashsingh1/xdaforums huggingface dataset:
[Nexus One Android Development] redraiderj:
Thank you:)
[Nexus One Android Development] crackjas:
which one is better? 850mV or 925mV I mean in battery saving?
[Nexus One Android Development] hah2110:
The lower the better.... 850... But not all phones can handle it.
[Nexus One Android Development] mikroN1:
According to kmobs himself the 925 gets better battery life. He even pulled the 850 version from Rom Manager because of it. He says it draws too much power for the radio at such a low voltage.
[Nexus One Android Development] MaxiJavi:
Do you have a link for this ? :-)
[Nexus One Android Development] persiansown:
Yeah I pulled the 850 from Rom Manager because the radio wasn't getting enough juice. The 925 should provide better battery life because the radio won't be killing the battery life anymore.
[Nexus One Android Development] adam18488:
http://twitter.com/kmobs
[Nexus One Android Development] MaxiJavi:
Cool ... Thanks !
[Nexus One Android Development] hah2110:
Does anyone have the actual *newest* update from 850mv before it was pulled? I think I was getting better battery life on that version? Would the radio "problem" maybe only be an issue when signal isn't great?
[Nexus One Android Development] jblazea50:
i have the 850mV from 4/21, if that's the one you're looking for, you can get it from here
[Nexus One Android Development] hah2110:
Thanks! Have you tried both versions of the kernel? Is this an update.zip or a file to use via fastboot?
[Nexus One Android Development] adam18488:
i switched from the 850 to the 925mv kernel earlier on today and tbh the only difference ive noticed is better signal. The battery life is pretty much the same compared to the 850mv.
[Nexus One Android Development] jblazea50:
i haven't tried both, used only hte 850mV but now i'm using pershoot's kernel

this is the update.zip version but you can extract the zimage and bcm file from the zip file and use fastboot
[Nexus One Android Development] MicroMod777:
Will this work with Enom's 1.8.1 ROM?
[Nexus One Android Development] themetatron:
Of course, makes for great battery life. 925 is better than 850
[Nexus One Android Development] hah2110:
im still getting much worse battery on 925

Sent from my Nexus One using the XDA mobile application powered by Tapatalk
[Nexus One Android Development] hah2110:
weird. no signal difference here but much better battery on 850

Sent from my Nexus One using the XDA mobile application powered by Tapatalk
[Nexus One Android Development] jlevy73:
Yep it sure is. Some phone won't work properly at 925mv either. 950mv is the sweet spot, anything below that depends on your phone, CPU etc.

However, if there is anyone who can get lower voltages to work, Kmobs is the man :)
[Nexus One Android Development] Markdental:
Is anyone having issues with streaming video on the 925 Kernel?

Just curious...
[Nexus One Android Development] hah2110:
Just did my restore to this morning when I was losing
[Nexus One Android Development] hah2110:
signal definitely fluctuating more on 850 but confirmed battery is definitely better, for me at least. weird that this fluctuation isnt affecting my battery.

Sent from my Nexus One using the XDA mobile application powered by Tapatalk
[Nexus One Android Development] xCALLmeKING:
I just wanted to give my input and experience:

I used IntersectRaven's 850 Kernel for about a week, and despite using airplane mode and turning off auto sync frequently, at best I would get about 30-36 hours out of a full battery charge. (this is under moderate use)

I have used the 925 kernel from the OP here (installed via ROM Manager Premium, thanks Koush) for almose 2 days and have made it to 39 hours and still have 27% battery charge left. (again under moderate use)

IMO, the 925 kernel does use less battery. It is important to note that I used Airplane mode and Auto-Sync/Off less often with the 925 kernel posted here.

As others have noted: RESULTS MAY VARY FROM PHONE TO PHONE!!! so try them all.

i will continue testing without use of Airplane Mode and see how much the results change.
[Nexus One Android Development] Untouchab1e:
There just isnt any logical argument as to why higher voltage would lead to better battery life..

And here is why..
[Nexus One Android Development] bskim23:
Is there a way to get the kernel without the rom manager? I downloaded and paid for the app but it says I need to flash the clockworks recovery. I'm currently using Amon-RA and don't really want to switch
[Nexus One Android Development] MaxiJavi:
You just cut-and-pasted your bogus statement ...

So I will do the same :-)

But you basing your statement on of fact on an assumption that seems to be incorrect ...

And you know what they say :-)

http://www.quotesandpoem.com/quotes/showquotes/subject/assumptions/951
[Nexus One Android Development] hah2110:
i can't get my battery life back! losing 5% in 30 min! someone help!

Sent from my Nexus One using the XDA mobile application powered by Tapatalk
[Nexus One Android Development] MaxiJavi:
Get OSMonitor and have a look at what's killing your phone ...
[Nexus One Android Development] hah2110:
Do I look under messages? How do I read this thing!?
[Nexus One Android Development] daveid:
What a hilarious article to quote. Check this line out:

After that I quit reading. If you can't even properly identify your sources how much can you know about what you are talking about?
[Nexus One Android Development] hah2110:
I can't get my battery life back! WTF! I did a clockwork backup yesterday morning when I was losing <2%/hour and did a restore last night but can't get it as good. WTF...
[Nexus One Android Development] persiansown:
Actually, the acpu-scorpion file controls both the global and modem pll and I think that is what is causing the battery drain when it gets too low. The reason I dont' just pump the voltage on those two lines is that I want to keep the steppings to 25mV just like the stock file. So true, this may not directly undervolt the baseband, but it does affect the global PLL.
[Nexus One Android Development] xCALLmeKING:
Interesting article...but where is the tests to back up the argument?

This is why I chose to test the different kernels myself and reach my own conclusions.
[Nexus One Android Development] hah2110:
Nothing on this thread in two days?
[Nexus One Android Development] mikroN1:
You're a keen observer.
[Nexus One Android Development] persiansown:
I've posted a couple of test kernels on twitter in the last few days. I think the one I just put up is a winner.
[Nexus One Android Development] rori~:
Re: [Kernel-.33.2] Undervolted @ Stock-4/21 925mV

new kernel is posted... :-) on twitter
[Nexus One Android Development] Vandam500:
Will this kernel break my trackball in successions and trackball alert pro?
[Nexus One Android Development] hah2110:
Link????????
[Nexus One Android Development] jblazea50:
this is 925v

http://kmobs.scepterr.info/kernels/signed-UVfixed.zip
[Nexus One Android Development] Markdental:
Lagged once and then froze and rebooted itself. No good for me.
[Nexus One Android Development] vipermo:
Re: [Kernel-.33.2] Undervolted @ Stock-4/21 - 850 & 925mV -On RomManager 850mV fixed

This new Kernel that was posted on Twitter is working great for me the best yet thanks man
[Nexus One Android Development] dextroz:
Yes, works fine.
[Nexus One Android Development] Saphroxx:
Thx Kmobs for your impressive work. I'm waiting for a 850mV version of this new hot stuff. The 925mV is doing good so far.

I'm off to work right now for 12hours straight so let's see what this kernel brings :)

Thx again for your work
[Nexus One Android Development] theloginwithnoname:
Hi all,

I recently installed CM 5.0.5.3 after coming from stock. After a week or so, CM released 5.0.6 which I upgraded to straight away. After successfully running CM's (excellent) custom ROM for a decent period of time, I've now turned my attention to extending battery life - so Persian's above post was spot on in it's timing!

[FWIW, I generally feel CM 5.0.x slightly extend the battery life over stock but also feel that the battery life with my light usage (+ background apps such as twitter, facebook, gmail etc) should last longer!]

I just wanted to feed back my positive experiences of the kernel upgrade; that I downloaded the ZIP from the tweet and flashed using Amon_RA's recovery, and it's gone on quickly and sweetly. Doing a full charge now, which will be proceded with a battery stats wipe, then we'll see how we get on.

Will report back with my findings - both thumbs up as usual to Persian for his endevour and skills...
[Nexus One Android Development] hotweiss:
What abouy trying a bfs version?
[Nexus One Android Development] hah2110:
Is there an 850 version of the newest release?
[Nexus One Android Development] persiansown:
BFS is slow on the N1.

There isn't going to be an 850 version. Everyone complained about the signal strength with me (myself included) Maybe things will change after the kernel test.
[Nexus One Android Development] hotweiss:
I am trying raven's BFS kernel, and it does seem faster. I just have the usual AVS glitches with it. Your kernel's have always been rock solid...
[Nexus One Android Development] persiansown:
I try to keep my kernels as close to stock as possible.. call me old fashioned :P

Updated the kernel. Here is a direct link for those of you without RomManager :)

http://kmobs.scepterr.info/kernels/signed-UVfixed.zip
[Nexus One Android Development] PhantomRampage:
Is that an updated 925uv? ^
[Nexus One Android Development] dudebro:
any recommendations to set for max and min? don't know much about setcpu.
[Nexus One Android Development] jonata:
thank-you very much !!!

;)
[Nexus One Android Development] jlevy73:
BFS does feel a bit faster however it is also quite a bit more unstable on the N1.
[Nexus One Android Development] hotweiss:
Actually, your latest kernel feels faster than the BFS kernel.
[Nexus One Android Development] rori~:
Re: [Kernel-.33.2] Undervolted @ Stock-5/1 - 925mV

... I used one day without setCPU :-)

see absolutely no difference, with or without :-)
[Nexus One Android Development] hah2110:
If the latest fix resolved battery drain issues, wouldn't it be possible to continue a 850 version? I saw the best battery on your 850, even compared to Raven's 800, but they were very close and *could* have been slightly attributed to usage over the 6 hour period. I am using Raven's 800 with no signal loss as far as I can tell.
[Nexus One Android Development] schahr01:
I think this was explained earlier in the thread. The poor signal and UV correlation seemed to be valid with non-AVS kernels since a global voltage setting for both the kernel and modem were tweaked. AVS kernels like Raven's or Ivan's don't touch the modem voltage configuration as part of the build.
[Nexus One Android Development] hah2110:
Isn't this more the reason to keep the 850?
[Nexus One Android Development] schahr01:
I think that's a question for Kmobs :) but given that the problem is thought to be understood perhaps that does leave the option to UV the kernel whilst leaving the modem alone.
[Nexus One Android Development] klinneth:
update.zip format for the kernel

Sorry if this has already been covered by I didn't see it in the last few pages -- any chance we could get an update.zip file with the latest update? :)

Thanks!
[Nexus One Android Development] hondaguy:
It's listed twice in the last 2 pages
[Nexus One Android Development] jblazea50:
Kmobs, gotta say that this is one of the better kernels right now; the battery doesn't drain as fast as the BFS kernel i was using yesterday (was losing about 5% on the hour on standby); i flashed your kernel, went to the movies and only lost 2% during the 2 hours so that's pretty damn impressive
[Nexus One Android Development] klinneth:
re: update.zip format for the kernel

Hmm...

I grabbed the file from kmobs.scepterr.info/kernels/signed-UVfixed.zip

I'm getting an error when I try to flash it: "Error in /sdcard/signed-UVfixed.zip (Status 0)" followed by "Installation aborted."

Any ideas what might be causing this?
[Nexus One Android Development] hah2110:
Which kernel are you using?
[Nexus One Android Development] jblazea50:
from post #1143: http://kmobs.scepterr.info/kernels/signed-UVfixed.zip
[Nexus One Android Development] hah2110:
Weird... the 925s aren't doing it for me. The 800s are performing MUCH better.
[Nexus One Android Development] Mikey:
Am i missing something? I installed the kernel using RomManager.

In "About Phone" it shows 2.6.33.3 @ubuntu #4

Shouldn't it show: 4/20 - Release 9 (Kernel Version: kmobs@ubuntu #2)
[Nexus One Android Development] persiansown:
No, those are the older ones. Don't worry, you're fine with number 4 :)
[Nexus One Android Development] persiansown:
Did you flash this new one? It should fix the battery drain issues
[Nexus One Android Development] Mikey:
Thanks buddy :)
[Nexus One Android Development] hah2110:
Yes. I just don't get good battery with 925s (yours or ravens). I don't get it.
[Nexus One Android Development] apacheo:
Re:

Maybe your phone is just crap, just like a lot of your posts asking whether each new kernel release has better battery life.

This is a development forum.. at least it used to be. Not a wailing wall.
[Nexus One Android Development] rjhay22:
Ouch! A little harsh, but somehow , I agree. Just had it coming.
[Nexus One Android Development] hah2110:
Ugh my phone and battery are fine as I got SUPERB battery life with Pers' 850 kernel from 4/21. I am definitely contributing towards development because there are such inconsistencies where there shouldn't be. I use my phone the same every day (10% standard deviation) and there shouldn't be this much difference. I obviously don't blame the devs.
[Nexus One Android Development] bobtentpeg:
....You can't measure a standard deviation at random.... Also, there will be inconsistencies with performance, based on subtle changes from 25.1º to 25.2º, its how silicon works. So, just because you're getting inconsistencies, doesn't necessarily mean the kernel has something wrong :)
[Nexus One Android Development] xCALLmeKING:
I can't believe that people are still bickering about which kernels are better on their phone. This is why Kmobs is doing a blind test to determine battery consumption between the 850 and 925 kernels. Maybe (in the name of development) rather than argue over kernels you should have participated in the blind test (unfortunately sign-up has closed). If you have signed up great, but FOR THE LOVE OF ANDROID SHUT THE HELL UP!

To those of you who are participating in the blind tests (myself included)...THANK YOU!!! I can't hardly wait for the results in the coming weeks. It will be interesting to see the feedback.

If you would like, you can follow the blind test discussion in this thread: http://xdaforums.com/showthread.php?t=672144
[Nexus One Android Development] hotweiss:
Do you have a link for the 21 Mb ram hack kernel that you mentioned in coolbho3000's thread? Would love to test it out...
[Nexus One Android Development] irishrally:
Persiansown: Do you have any comments on this article: http://androidforums.com/nexus-one/63640-my-nexus-one-has-slowly-died.html
[Nexus One Android Development] persiansown:
Undervolting should not have any long term effects on the hardware. I also doubt the OCing did anything.

My best guess is that the used N1 he bought had slight water damage and slowly corroded.
[Nexus One Android Development] rori~:
Re: [Kernel-.33.2] ... Excessive Drain Fixed

.. interesting, since I use ubuntu#4 kernel, the default CM launcher starts being laggy when I use setCPU, I tried various profile settings...

When setCPU uninstalled, everything works great.
[Nexus One Android Development] nmesisca:
does the same for me. dont put an active widget on the home screen and it should make it better..

at least for now.
[Nexus One Android Development] hondaguy:
i was using the undervolted kernel (850) and switched to this one (925) a few days ago. i actually reflashed the kernel yesterday as i was having a some issues with call sound quality. today my phone crashed and rebooted 3 different times after ending a call, and this has never happened once in the almost 2 months that i have had this phone. i have been using the enomthrs rom and two things have become apparent to me since flashing this new kernel, my phone is now crashing after calls and people complain that they cannot hear me when i am speaking over my bluetooth headset.

i have been using the same rom for a couple of weeks and i usually have a very good 3g signal when these crashes and poor audio quality are happening. does this kernel have some kind of audio boost? i find it too loud now when using the phone or the headset and i cant stand how nobody can hear me. i like the improved battery life but i need my phone to be stable as i use it for work. has anyone else had similar issues?

i am using the version with rogers/att 3g and have the 4.04 radio incase that makes a difference.
[Nexus One Android Development] hondaguy:
i switched roms last night to cyanogen 5.0.6 and did not flash a different kernel. everyone has said that they can hear me fine now when speaking over my bluetooth headset. after a few hrs i decided to flash one of the intersectraven kernels and now a few people were complaining that my voice was tough to hear while i was on my bluetooth headset. any ideas how to fix this?
[Nexus One Android Development] persiansown:
925mV .33.4 kernel. Grab it here or on RomManager

http://kmobs.scepterr.info/kernels/signed-925uv513.zip
[Nexus One Android Development] bskim23:
I'm running CM 5.0.7 Test 2. Will this new kernel run okay on it?

Also, will you be including the 21 MB hack?

Thanks for all your hard work its much appreciated :) just read your tweet about the test results. I always liked 925s
[Nexus One Android Development] nmesisca:
I m running behind the mass with updating my phone, still am on CM 5.0.5.3.. it this kernel compatible please?

thanks

N
[Nexus One Android Development] hotweiss:
No problems with your kernel, and the battery life is great as always
[Nexus One Android Development] jairuncaloth:
What are you editing/setting that lets you do this? I would be interested in trying it out in some of my own kernel builds.
[Nexus One Android Development] squirlly98:
that did the trick thank you !!
[Nexus One Android Development] persiansown:
The thread about OCing to 1.267ghz is where I got all of my information from. Everything you need to know is in there.
[Nexus One Android Development] gtrplr71:
nice android just keeps getting better!:D
[Nexus One Android Development] timothydonohue:
:/ slowly getting talked into unlocking the bootloader. unlike the OC thread, this one actually seems like a reasonable idea. more battery = better, and probably not harmful.
[Nexus One Android Development] Gimpeh:
Ugh. Sure its not having any issue detecting my phone in fastboot but when it comes to ADB it decides to take a crap. Welp after two hours of uninstalling and reinstalling the usb drivers and attempting to get the laptop to detect the device in ADB, I give up. Gonna try and compile and sign my own update.zip instead.
[Nexus One Android Development] seanowns:
Technically, you can avoid ADB. Flash kernel in fasboot, and then use a Root file manager to mount and copy .ko file to the right spot. Sufbs works. Should allow you to avoid it in theory at least. Use copy and paste to directory after mounted. Have done it before with other files
[Nexus One Android Development] persiansown:
Alright well the even more undervolted kernel is live. Check the first post for details.
[Nexus One Android Development] beagz:
Just wanted to thank you 4 this. thanks!
[Nexus One Android Development] rreyes0416:
Detailed Instructions to proper install undervolted kernel

Dummy Proof Instructions

Windows users.

1. Extract the undervolted.zip in the Android SDK folder inside the tools folder

2. Go to the Android SDK folder and go to the tools folder where you can find fastboot file and adb file and where the extracted files should be..... and press SHIFT and right click at the same time and choose open a command prompt here

3. In the command prompt type or copy paste fastboot flash zimage zImageundervolt for the first version or fastboot flash zimage zImage1125 or for the kernel .32 is fastboot flash zimage zImage for the new updated one released today feb/18... done with that... you just install the image next step is...

4. Reboot the Phone and when you get to the home screen...do the STEP 2 again

5. Then in the command prompt type or copy paste adb remount

6. Then type or copy paste adb push bcm4329.ko /system/lib/modules

7. You are done... go to settings...about phone...and in kernel version should say something like 2.6.29.6-cyanogenmod-UV kmods@ubuntu #2 for the first version of undervolted kernel and for the new update should say something like 2.6.29.6-cyanogenmod-1225 kmods@ubuntu #6..thats is if you are running CM 5.02 rom with ERE36 update or something close...
[Nexus One Android Development] flak0:
Followed these instructions and the OP and still get "unable to start wifi message". File matches 180kb as in zip file. Anyone else getting this?
[Nexus One Android Development] rreyes0416:
You might did something wrong the first time...that mess it up from now on...you might have to re-flash the rom again...do a nandroid backup and flash the rom again and then follow the instruction...you cant go wrong...or keep waiting for somebody to figure out what you did wrong in order to fix it...
[Nexus One Android Development] Gimpeh:
Ha! I lost root! What luck!
[Nexus One Android Development] rreyes0416:
Imposible...probably you never had it in first place...
[Nexus One Android Development] denimjunkie82:
I just flashed this (the first version, not the updated one with even less power). We'll see how battery life is tomorrow. Right now it's charging and it's not as hot as previously - although it could be placebo effect as well.

According to OSMonitor - my temp is at 20.4C, not sure what it was before though.

Also, the ROM feels just as speedy as the original CM5, in and out of apps very quickly. I am also still getting the same benchmark scores on Linpack (about 6.5-7 mflops/s)

edit: temp just dropped to 18.8C! I'm still in charging mode. Again, i dont know what it was before pre-kernel tho.

edit2: just dropped to 17.9C! and it's still charging at 93%. The phone is cool to touch, as if it wasn't even on! Battery life or not (i'm sure it's extended) but the temperature drop itself makes this entirely worth it. Will definitely prolong the life of the internals.
[Nexus One Android Development] Gimpeh:
Not impossible. I used wifi tether just yesterday.
[Nexus One Android Development] flak0:
Is it possibly a CHMOD error? Dev what is the proper permissions for the bcm....ko file?
[Nexus One Android Development] spyz88:
To fix root issue:

adb remount

adb shell chmod 6755 /system/xbin/su

you will be all set.
[Nexus One Android Development] mgorman:
if I currently have the overclocked kernel, can I flash this one and not run into any problems?
[Nexus One Android Development] spyz88:
You won't as your just flashing the kernel, nothing else.
[Nexus One Android Development] Casao:
For some reason, I'm seeing a lot more idle battery drain than I did on the test kernel - and I was group 3, so 1000mV. Nothing else has changed. Any idea why this might be?
[Nexus One Android Development] Bryce2010:
Re: [Kernel-.33.4]

I was excited to see this and just installed it using ROM manager - now I've lost my wifi!

How can I fix this?

Edit: I just reverted back to the previous Kmob kernal which worked fine with my wifi.

Might try to apply this kernal again when I have time to go through the 120 pages of this thread to figure out how to make my wifi work with it!

(unless someone wants to just give me instructions )

:-)
[Nexus One Android Development] hah2110:
+1... No WiFi here... Someone help!
[Nexus One Android Development] jblazea50:
can you just extract the zImage and bcm4329.ko modules from the zip file and push it using ADB/Fastboot?
[Nexus One Android Development] hah2110:
I tried this as well... No success. WiFi just doesn't connect. For some reason, Juice Defender shows a MUCH lower multiplier on this kernel as well. Mine is showing like 1.6.