Root only for underclocking - AT&T Samsung Galaxy S II Skyrocket SGH-I727

I want to root only so I can leave everything the same except use SetCPU to underclock to save battery. Do I need to install a custom rom or kernel to do that? Or can the stock set up rooted be underclocked?
Thanks.
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You need a kernel that supports changing the clock speed. You dont have to run a custom rom but youll need a supported kernel

Any one you can recommend? I'm new to the skyrocket coming from Verizon HTC Thunderbolt.
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I've never even heard of people underclocking (well I am a noob) not that I think its a bad idea just new to me....hey silver or OP if I root and really just want to overclock and use tethering keeping it stock rooted is good? Really wondering if I should wait for the OTA ICS update then root
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Related

[Q] MT4GS Custom ROMS? Overclocking kernel? Over clocking Kernel Module?

Now that the MT4GS is rooted, when are the custom ROMS coming out?
When is an overclocking kernel coming out? Are we waiting for HTC to release the source? For the time being, can we at least get a kernel module that will allow us to overclock?
That's the $1 million question. Shouldn't be long now...
I hope that when cm7 gets ported that they can do something to make the default camera app better.
I'll just be happy if they allow us to use the original camera app it comes with. I've kinda gotten use to sweep shot
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Aeikozz said:
I'll just be happy if they allow us to use the original camera app it comes with. I've kinda gotten use to sweep shot
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I wish it was that easy but the camera.apk has too much embedded sense framework
http://forum.xda-developers.com/showthread.php?t=1221719&page=2
He posted a beta ROM if anyone wants to try it. I'm downloading it right now and will post results. Make sure to do a NANdroid backup first!
Are we waiting on HTC to release the source code? Can someone compile a kernel module instead to allow overclocking?
Unclespoon... Looks like this was canceled :-(
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shineproductions said:
Unclespoon... Looks like this was canceled :-(
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Yeah, Ace tried his best but it seems like there was an incompatibility with the installer script he was using and our new version of CWM recovery. I hate waiting but I'm sure it won't be too long before there are custom ROMs or at least overclocked kernels for us to dink around with!

[Q] CM7 based roms all cause SOD...does anyone know what's causing this?

Everytime i have tried flashing a CM7 based rom, and i've tried almost all of them, once the screen goes to sleep it won't wake up. i think that's called sleep of death (SOD), pardon my n00bness if i'm wrong. the odd thing is that when i press the wake button, the phone and even the digitizer wake up because i can hear/feel the phone unlocking when i make the sliding motion on the screen, but the screen itself will not wake up. Does anyone have any idea what's causing this? or better yet any ways of preventing/fixing this?
Do you have this issue on stock?
Sent from my LG-P999 using xda premium
What kernel r u using? If u flashed uv kernel try to use stock voltage, some devices don't work well with custom uv kernels
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I have this problem with all 3 kernels, stock, oc UV, and oc stock voltage .. I've had this phone for a month now, this is what makes it a waste of money for me. Even my girl has this problem with her g2x, yesterday I put cm 7.1, hers started doing it too.. and she's had 3 replacements..
Sent from my LG-P999 using Tapatalk
Did u wipe ur data and format system before flashing? Try to fix permission too. Only guessing but maybe the battery is bad, as far as I know u not getting new one with replacement, so if u had same issue on stock rom that could be a problem.
I had 2 replacements but had that problem only if undervolt too much.
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Well, I don't think its the battery dying but someone mentioned here before that if you look at the battery where the connectors are, there's 4 on the battery but 3 on the phone
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FatalityBoyZahy said:
Do you have this issue on stock?
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No this issue only occurs on CM7 based roms, OTA 2.3.3 based roms work great
Waldano said:
What kernel r u using? If u flashed uv kernel try to use stock voltage, some devices don't work well with custom uv kernels
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I haven't purposely flashed any non-stock kernels alongside the roms, unless all the roms i flashed included UV kernels....but i've flashed almost every CM7 based rom
Waldano said:
Did u wipe ur data and format system before flashing? Try to fix permission too. Only guessing but maybe the battery is bad, as far as I know u not getting new one with replacement, so if u had same issue on stock rom that could be a problem.
I had 2 replacements but had that problem only if undervolt too much.
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I did wipe data, format system and even fix permissions and still same problem occurs, I don't think it has to do with the battery tho because stock OTA based roms don't have this issue...it must be something particular about the CM7 base
Also, could it be the fact that i have the WIND mobile optimus 2x? it says p999-DW on the back though
use miui it doesnt have the SOD problem cm7 did it the last time i had it (3 days ago)

Infuse 4g unlocked 2.2.1 what Rom recommend update

I have a infuse 4g but i interested update with latest Rom,already have super user installed,original carrier is att but now used with other carrier,what Rom to update and correct steps needed to flash without lose the unlock :-( thanks to all
If your phone is unlocked already, I doubt you'll lose it installing a rom....I suggest u check out the infuse development thread n look up the sticky thread the one called "one stop shop for the infuse" i'm sure that will help u.
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igotdez said:
If your phone is unlocked already, I doubt you'll lose it installing a rom....I suggest u check out the infuse development thread n look up the sticky thread the one called "one stop shop for the infuse" i'm sure that will help u.
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Ok i come to check now,thanks
I mean since your already rooted and all I would suggest this rom "infused 2.3" its a really stable gingerbread rom by gtg.
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If you've SIM unlocked, then it's permanent. It's stored in the phone's EFS partition, and isn't really un-doable.
EDIT: It's just my opinion, but try CM7. It's pretty great on the Infuse. You'll get better battery life on Samsung ROM's but CM7 is unmatched in function.
I ran the Infused rom for the longest and it was great! Then I tried cm7 which was really cool with all the setting and stuff but even under volted it drained my battery like crazy. My favorite rom right now is doctorz v8 rom with entropy's daily drive kernel. If you under volt urs like mine which I seen snoopdaclown do his:
1200. -100
1000. -100
800. -125
400. -125
200. -150
100. -175
You'll have a phone that charges quickly thanks to the daily driver kernel, battery life that last a long time for an Infuse, and have some of the cool customization kinda like cm7. Just go in the development section for the infuse and find the thread on what I mentioned here and they'll tell you how to properly install them.
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<Q> cwm a different way?

Ok guys as i'm trying to fix my USB problem I am curious as to if there is any other way to give my phone cwm.
I'm currently running ravers 2.3.6 kj6 official GB ROM with root. I understand I would have to Odin a different kernel but I can't cause of the USB issue. When I had the vibrant I remember using rom manager and going to factory recovery and doing update.zip. I am aware of rom manager not working with this phone but could I do something similar? Or since I have root could I go into a specific folder and change kernels?
My best guess is no since I haven't seen it mentioned anywhere I just thought I'd ask. You never know right?
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goddi2010 said:
Ok guys as i'm trying to fix my USB problem I am curious as to if there is any other way to give my phone cwm.
I'm currently running ravers 2.3.6 kj6 official GB ROM with root. I understand I would have to Odin a different kernel but I can't cause of the USB issue. When I had the vibrant I remember using rom manager and going to factory recovery and doing update.zip. I am aware of rom manager not working with this phone but could I do something similar? Or since I have root could I go into a specific folder and change kernels?
My best guess is no since I haven't seen it mentioned anywhere I just thought I'd ask. You never know right?
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Get sgs kernel flasher from market and extract the zimage from the kernel zip. Once that is done use sgs kernel flasher to flash the zimage and you will have clockwork mod with voodoo.
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Sweet i'm gonna try that, I actually just looked up a search for kernel the market and seen that. Didn't know if it would work for this variant of s series. Def Hope I don't brick my phone lol
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goddi2010 said:
Sweet i'm gonna try that, I actually just looked up a search for kernel the market and seen that. Didn't know if it would work for this variant of s series. Def Hope I don't brick my phone lol
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I've used it before on my galaxy s 4g and it worked perfectly.
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[Q] need a working link for lg g2x froyo NO stock

Can anyone please share me a working link of lg g2x froyo like eagles blood 2.2.2 , sinister froyo etc.? i looked over but they are all dead links please..
Just out of curiosity, why do you want a 2.2.2 froyo rom?
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Pain-N-Panic said:
Just out of curiosity, why do you want a 2.2.2 froyo rom?
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nostalgia?
Spawne32 said:
nostalgia?
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Lol. nostalgia?NO.. bc all ics and jb roms dont work 100% and all GB roms seems to use ALOT of baterry and the video and pics are not really good as froyo.. or what rom and kernel do u think works 1000% on battery performance and pics $ video Quality.. i tried all posted here..actually im on hellfirephoenix 2.4.2 and kernel mazkrnl 0218.....do u guys have per any chance any old froyo rom? please
I do not unfortunately. I'm running cm7 with maz's latest beta kernel build. Batter is fne. Even great if you run the right setup
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Pain-N-Panic said:
I do not unfortunately. I'm running cm7 with maz's latest beta kernel build. Batter is fne. Even great if you run the right setup
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ok thankz ..i guess im not going to find it ..:crying: how can i have the right set up? im gonna try it ..can u run the wolfscrip and supercharger too?
bc my lg p999 sometimes get really laggy.. can you help me out please.. :silly:
I've never ran a mod or any custom tweaks like that. So i can't help you on that end. when i say right setup i pretty much mean controlling the CPU limits, having data off when not needed, shutting down wifi or data when screen is off and lowering CPU output while screen is off.
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Pain-N-Panic said:
I've never ran a mod or any custom tweaks like that. So i can't help you on that end. when i say right setup i pretty much mean controlling the CPU limits, having data off when not needed, shutting down wifi or data when screen is off and lowering CPU output while screen is off.
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ok..well now im using lastest cm 7 and mazkernel beta and v6 super charger and its working perfect..thankz for the help..God bless you..
btw .any chances we can have jb working 100%? do u think is gonna be possible ?
Probably not. You like the v6 super charger? I installed it last night. Made my phone really buggy.....removed it.
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Pain-N-Panic said:
Probably not. You like the v6 super charger? I installed it last night. Made my phone really buggy.....removed it.
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Really?? mmm.. i installed last night too and made my phone really fast and theres no overheating freeze or slow..it just perfect but like they said all the phones act different.. im trying to sell mine since its no way we can have jb i think all devs move on so im trying to get the galaxy 3..no more LG..!! did u tried the wolfscrip that help too make phone really smoth and faster
Nah ill have to check that out
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I'm going to go ahead and flash wolfscript....should have never read about it because now my hopes are high and knowing me i'll see no difference or a drop in performance lol.....making nandroid now...
good.... for any chances do u have an old froyo kernel for the lg g2x or wish kernal would for with stock froyo 2.2.2 today they come to see it bc im selling it but i need to rolled back to froyo so they can use hdmi and bt also they can update it to gb..

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