Nexus S ICS - Undervolting - Nexus S General

Hi,
I`m curious how/if undervolting (and overclocking as well) works on Nexus S after the ICS update. First, I must point out that I have a NS with stock rom, never been rooted, bootloader locked with official (now not working) recovery. The reason for this question is that the only reason I see for rooting this device is to undervolt to get more battery life. Btw I`m satisfied with the battery life I can get but why not to try to get some more ...
So, if I would root my device, what do I have to do next? Do I need another kernel? If yes, which are compatible with stock ICS? I want to stay on stock cause thats the reason I went for Google phone, the official updates without the need to flash roms ...

if the only reason to root just to undervolt...maybe there is an app in market can help u..
but if u use custom kernel...u can have more room to tweak it to ur best preference.
u can get custom kernel here: http://forum.xda-developers.com/showthread.php?t=1336529&page=91
but still in testing phase
for rooting...here: http://forum.xda-developers.com/showthread.php?t=1396959

Hi
Thanks for your reply, but I`m afraid root is always required for undervolting ... But thanks for the kernel link!

Related

[Q] Rooting a U8800 that's currently on 2.2...

Good evening all,
Basically I'm looking to root my girlfriends fathers U8800, it's currently running android 2.2. He's complained that its got major battery drain so I figure I can find a ROM here that can help that.
I've read there are 3 different types of models for this handset. How do I know which one we've got? If that's relevant?
I've found this thread that seems dead easy to follow, http://forum.xda-developers.com/showthread.php?t=1420728 , am I ok to proceed?
When I've rooted it, do I just flash a rom via CWM like I would with my galaxy s? And will I be caught out with bootloader issues or little things like that?
Thanks in advance.
If the device is the U8800 regular model(not pro or plus) you can follow the guides of the link.
And yes, you can flash a rom from cwm recovery.
Only one suggestion. If you flash the latest stock gingerbread rom(I think is the 522), search for a thread called "get your pink screen back" on developing section. The after 518 versions have the bootloader locked, and on the above thread you will find how to flash the unlocked bootloader from 518 stock rom.
Thanks for that, I'll get on it tomorrow with an operational head. I'll do the pre root checks and make sure I have everything I need in place before I get going.
dancer_69 said:
If you flash the latest stock gingerbread rom(I think is the 522)
Click to expand...
Click to collapse
It's 528
dancer_69 said:
The after 518 versions have the bootloader locked, and on the above thread you will find how to flash the unlocked bootloader from 518 stock rom.
Click to expand...
Click to collapse
*locked pink screen.
Sent from my GT-P1000 using Tapatalk 2
If the device is not yours I suggest you to do nothing. There's no better Rom, in terms of bug free than the original one.
Custom roms always have this or that and will require attention, which I'm sure your fatherin law can live better without these issues and concerns.
This devices have an high consumption and he has to get used to it.
Now if the device was yours meaning you would be using it daily, than i would advise you to install aurora. I don't like it but have to admit that is very good and stable.
:thumbup:
Sent from Odin's device!
Dave759 said:
He's complained that its got major battery drain so I figure I can find a ROM here that can help that.
Click to expand...
Click to collapse
Did you look to see what is causing the battery drain? I have a friend with a stock GT540 that had serious battery drain. Turns out it was the GoSMS program. Deleted the app and now his phone lasts 5 days between charges. Switching a rom won't help if the problem is an app.
1) Get cpu spy and see if it is going to deep sleep
2) If not sleeping, turn off running applications one by one and test via cpu spy to find out which one is causing it not to sleep.
3) Either remove the offending app or use Autorun Manager to modify the receivers (if rooted)
You can fix his problem without changing his rom. If he wants root, superoneclick can root 2.2, I just used it the other day. Also make sure he is on the latest 2.2: b138sp04 or b163. I prefer b163, even though it is the China rom, because I like the Huawei launcher better that stock.
A.C.A.B. said:
If the device is not yours I suggest you to do nothing. There's no better Rom, in terms of bug free than the original one.
Custom roms always have this or that and will require attention, which I'm sure your fatherin law can live better without these issues and concerns.
This devices have an high consumption and he has to get used to it.
Now if the device was yours meaning you would be using it daily, than i would advise you to install aurora. I don't like it but have to admit that is very good and stable.
:thumbup:
Sent from Odin's device!
Click to expand...
Click to collapse
That's not true... official 2.2 is the slowest thing in existence. If he just needs stability then Ezets CM7 is the answer. There are no bugs with it (except wifi tethering) and it's much much faster than stock...
Also he can undervoltage it to preserve battery life more than stock ROM.
Sent from my U8800
You want the best 2.2 you try Void Eridanus. Everything works.
Want the speed, OEX rom it's a Ferrari. Everything works less the mms with data off.
You can also keep the stock Rom, root it and just apply a ffranco kernel. This way you gain the speed.
3 good solutions here.
I'm don't revert to stock Rom for 2 reasons, cam quality and battery life, otherwise i would use stock Rom without a shadow of a doubt.
In terms of stability and all working it's stock 2.2 Rom and this is unquestionable!!!
I have been trying ALL roms and ALL respective versions since July 2011 therefore I do speak by personal extended experience
I repeat once again, in the conditions you mention leave the phone as it is. If you want to do something just root it and that's it.
as a matter of facts i had my phone with so many rooms that i can even say how many but if u want stability i recomend oxygen... if u want stability and good looks use miui 32...
last .32 miui that i used was from miui portugal in english and nothing to say about that...
battery for 2 days and all smoth...
but my phone is weird... he can take almost every rom and be usable...
The issue with miui pt versions it's the cam quality that is horrible. It's just this detail that it's not very good. The rest it's perfect.
Sent from Odin's device!
Hey everyone, back for an update and some other steps. basically, he got frustrated with how the battery so he went out today and bought the newer huawei. Reading eveyones comments here i think its due to the ammount of apps and being on froyo hasn't helped any thing, but anyways its now my new toy to play with. So far, followed the link i posted in the first thread, rooted and installed the latest CWM (v5). I'm now a little confused when it comes to the get the pink screen back, should i follow this thread http://forum.xda-developers.com/showthread.php?t=1457490 now before flashing a new rom or afterwards?
Again thanks for all the help, I'm almost done bothering you all for now
Edit: Reading on some ROM's and the comments above, i should install B518 stock ROM then flash the bootloader fix from the thread posted above then i can install other ROM's? If so where can i get the stock B518 ROM and how do i know which version I'm using? Sorry and thanks again.
First, which rom you have now?
You can find the version from settings -> about phone.
If you have a newer than 518 version you need to change the bootloader with the one from 518. If you have 518 you don't.
Also check which version of kernel you have(is on about phone also)
If you have a 2.6.32 version(which mean that you have froyo rom), you can flash only roms with this kernel version. If you have a 2.6.35 version, you can flash roms with 2.6.35 kernel or 3.0.8(as aurora ICS).
Basically its a stock froyo rom, im looking to get to gingerbread by the end of tonight but currently im stuck on the huawei splash screen after i did a data reset in CWM. Can still get to CWM though.
What rom you want to flash now?
A custom gingerbread based of froyo's kernel 2.6.32 like CM7.2, oxygen or miui, or the official gingerbread?
Im not particularly bothered, something that won't brick the phone and is stable. I'm more worried as to why it wont boot now after a data reset.. any suggestions for that?
You can use adb and logcat function to see where the problem is. Usually when some errors prevent device to complete the boot proccess, this piece of code loops. You need to have some knowledge of programming though, but maybe is something easy.
and now i have blue screen.. what can i do? or have i bricked it?
Where you have blue screen and what you did?
Usually blue screen instead of recovery mode, means that the recovery.img is deleted from .cust_backup/Image folder
basically, i formatted something, reboot and soon as the huawei logo appear a blue scrren rolls down. when i plug the phone into the pc it detects a folder but its empty, the phone is detected as qualcomm now..
Yes, seems that you formated the partition which has the Image folder with all system images. So, now you need to flash an official rom. You can either flash a froyo or a gingerbread rom. You can avoid this only if you previous had take a backup of this folder. In this case just put all files in (empty now) image folder.

Need Some Advice on my Device!

Hello.
Im have a question for someone who has a rooted nexus s 4g.
I've been rooting since the motorola droid milestone so since then i rooted 3 android devices. (two year contract makes me suffer).
Anyway, i been waiting soo bad for ics and had my device rooted running unofficial ics roms so when it updated i flashed back to stock.
My phone sucks now so i want to root but i still want the basic ics theme so what would you recommend.
im thinking just root it and then flash a matrix kernal. or whatever kernal works best for most of you.
And.. when i root it does it install a custom rom or it just unlocks the one im using.
thanks in advance.
when you root the phone stays with it's current ROM,so no it will not flash a custom ROM for you,if the ics them is your only concern,there is many ROMs that keep this theme (check development section),and sure you can root and keep the stock ROM and flash any kernel you want.
Thanks for the help. Just what I was looking for. I'm going to reroot when I get out of work.
I'm going to do some more research because I love maths kid matrix but I might want to try air kernal. Maybe try slim ics.

[Q] Kernel Update Question

Hi
I am planning on flashing Adams Kernel on my GT-i9505 i have never done that before so i have a few questions please have patience i have never done it before i have flashed roms before but that was a long time ago (WM6) coming from a long iPhone stint.
I am currently running stock rom rooted and i have CWM installed.
My main reason for flashing is gaining some battery life and trying to get rid of this pesky RILJ wakelock wich wont go away is this a good reason and will it solve my problem?
Is my choice of the Kernel a good one? i am looking for something that works well as closed to stock as possible i dont want to lose any fuctionality.
If i ever need to send it in to service will this void my warranty? if yes do i need to take steps before flashing so i can go back to stock kernel if/when i need to? if yes what are they?
P.S i have done extensive reading before posting but i still have some doubts.
Thank you in advance for your time
Jay
Device Info:
GT-I9505
BB:i9505XXUBMGA
Kernel Version:3.4.0-1081224
Device version JDQ39.I9505XXUBMGA
j1978 said:
My main reason for flashing is gaining some battery life and trying to get rid of this pesky RILJ wakelock wich wont go away is this a good reason and will it solve my problem?
Is my choice of the Kernel a good one? i am looking for something that works well as closed to stock as possible i dont want to lose any fuctionality.
Click to expand...
Click to collapse
KTweaker kernel works well as it allows you to underclock and undervolt the CPU and GPU which will save battery life
j1978 said:
If i ever need to send it in to service will this void my warranty? if yes do i need to take steps before flashing so i can go back to stock kernel if/when i need to? if yes what are they?
Click to expand...
Click to collapse
Follow this guide to install official stock firmware before sending in for repair
Thanks for your response. I flashed the kernel you recommended.
Jay

Opinions on best root method, ROM & Kernal for SM-n9005 (lollipop 5.0)

Hi guys,
Been reading these forums for the last few hours but still struggling to make my mind up...I would like to know your opinions on the best method of rooting my phone (SM-n9005 on lollipop 5.0) and what ROM and kernal you recommend please? The most important factor for me is stability/lack of bugs but without going back to an earlier version of android. Or would that mean that it would make more sense to keep the stock ROM/kernal?
I apologise in advance for any stupid questions as I am pretty new to this but very eager to tinker!
Thanks!
my choice!
Darren653 said:
Hi guys,
Been reading these forums for the last few hours but still struggling to make my mind up...I would like to know your opinions on the best method of rooting my phone (SM-n9005 on lollipop 5.0) and what ROM and kernal you recommend please? The most important factor for me is stability/lack of bugs but without going back to an earlier version of android. Or would that mean that it would make more sense to keep the stock ROM/kernal?
I apologise in advance for any stupid questions as I am pretty new to this but very eager to tinker!
Thanks!
Click to expand...
Click to collapse
* Root via CF Auto Root
* Flash AryaMod ROM (via TWRP)
* Flash Lean Kernel 6.3 (via TWRP)
Well my choice for rooting is simple. Install a custom recovery (TWRP), then flash the SuperSU zip from there, done.
My preferred custom ROM (for you) would be Arya, cause it comes with lots of features, and it's based on stock Samsung TW ROM, so its stable as hell.
Kernel? Well I am sorry to say I can't say that, probably Audax? I am on Stock at this moment, and all I know if I move to a custom kernel it will be Audax at this moment, cause honestly I don't see any reason to use any other kernel other than that. I prefer a kernel for its additional features, and those aren't available then I don't see any point of using a custom kernel
ithehappy said:
Well my choice for rooting is simple. Install a custom recovery (TWRP), then flash the SuperSU zip from there, done.
My preferred custom ROM (for you) would be Arya, cause it comes with lots of features, and it's based on stock Samsung TW ROM, so its stable as hell.
Kernel? Well I am sorry to say I can't say that, probably Audax? I am on Stock at this moment, and all I know if I move to a custom kernel it will be Audax at this moment, cause honestly I don't see any reason to use any other kernel other than that. I prefer a kernel for its additional features, and those aren't available then I don't see any point of using a custom kernel
Click to expand...
Click to collapse
Thanks a lot for the help! By the sounds of it then, i will definitely go with the Arya ROM...I'm assuming this and Aryamod are the same thing? Also, will this offer many more advantages as the stock ROM and will it be as stable? The main reason i have decided to root my phone is to get more out of apps requiring root and to get rid of bloatware.
With regards to the kernal, i guess being a novice, all i understand is that they can improve battery performance and phone performance so i would like to go for one fitting this. Unless i have missed the idea completely lol
Thanks again mate
Darren653 said:
Thanks a lot for the help! By the sounds of it then, i will definitely go with the Arya ROM...I'm assuming this and Aryamod are the same thing? Also, will this offer many more advantages as the stock ROM and will it be as stable? The main reason i have decided to root my phone is to get more out of apps requiring root and to get rid of bloatware.
With regards to the kernal, i guess being a novice, all i understand is that they can improve battery performance and phone performance so i would like to go for one fitting this. Unless i have missed the idea completely lol
Thanks again mate
Click to expand...
Click to collapse
This is Arya mate, http://forum.xda-developers.com/galaxy-note-3/development/rom-aryamod-v1-tw-lollipop-t2990920
Yes, the ROM is damn stable, as stable as stock ROM, I used the ROM for almost two months, and in fact I am downloading it now, getting bored of stock ROM.
Yes, kernel can improve battery life and performance, if you know what to tweak.
ithehappy said:
This is Arya mate, http://forum.xda-developers.com/galaxy-note-3/development/rom-aryamod-v1-tw-lollipop-t2990920
Yes, the ROM is damn stable, as stable as stock ROM, I used the ROM for almost two months, and in fact I am downloading it now, getting bored of stock ROM.
Yes, kernel can improve battery life and performance, if you know what to tweak.
Click to expand...
Click to collapse
Thanks a lot! I'm just backing up my phone then I'm going to try to root it and install the ROM tonight! I think i'll leave the custom kernal for a while so I can see how i get on with the stock kernel. At least then i'll hopefully be able to compare once i do flash a new one.
Thanks for being patient
Darren653 said:
Thanks a lot! I'm just backing up my phone then I'm going to try to root it and install the ROM tonight! I think i'll leave the custom kernal for a while so I can see how i get on with the stock kernel. At least then i'll hopefully be able to compare once i do flash a new one.
Thanks for being patient
Click to expand...
Click to collapse
Sure mate, we are here to help. Just do a wipe before doing all that, cause without wiping the ROM and all its features might not work and the ROM won't be stable anyway. Wipe everything from TWRP, under Advanced wipe section, except external SD card of course. Take a backup beforehand. Remember, if you do that advanced wipe thing, then you won't have anything on your phone, so better download Arya before doing all that.
ithehappy said:
Sure mate, we are here to help. Just do a wipe before doing all that, cause without wiping the ROM and all its features might not work and the ROM won't be stable anyway. Wipe everything from TWRP, under Advanced wipe section, except external SD card of course. Take a backup beforehand. Remember, if you do that advanced wipe thing, then you won't have anything on your phone, so better download Arya before doing all that.
Click to expand...
Click to collapse
I've managed to root it without any problems so I'm well chuffed
I decided to get the hang of titanium backup and TWRP backup before i start messing about too much with custom ROMS. Which for me, is a very sensible decision
I've been looking at the Arya rom which like you said, seems amazingly stable now, and the Darklord N5 or S6 port, which apparently is stable now too. Do you have any experience with the Darklord N5 or S6 ROMs? How do these compare to the Arya? Lastly, now that I've rooted it, is there much to gain from a custom ROM as it seems that you can get many different apps to customise different things whilst keeping the stability of the OEM ROM?
Darren653 said:
I've managed to root it without any problems so I'm well chuffed
I decided to get the hang of titanium backup and TWRP backup before i start messing about too much with custom ROMS. Which for me, is a very sensible decision
I've been looking at the Arya rom which like you said, seems amazingly stable now, and the Darklord N5 or S6 port, which apparently is stable now too. Do you have any experience with the Darklord N5 or S6 ROMs? How do these compare to the Arya? Lastly, now that I've rooted it, is there much to gain from a custom ROM as it seems that you can get many different apps to customise different things whilst keeping the stability of the OEM ROM?
Click to expand...
Click to collapse
Unfortunately I don't posses any idea about those ROMs mate. As much as I would like to respect and admire those developers (you have no idea how hard it is to do even a simple mod, let alone a full ROM like that), at the same time I will have to say almost all the ported ROMs have some sort of issues, be it S6 or Note 5 or Note 4, yes, they might be negligible to some, but I want my phone to be performing as stable as possible. And as Arya is based on Stock Note 3 firmware there is no chance of any instability. But if you find Darklord Note 5 port stable and don't encounter any problem then use it, by all means. Heck if Samsung doesn't release 5.1.1 i next couple of months then I too obviously will that route, but for now 5.0 is okay enough for me.
And yes, with a custom ROM you can do a lot of things as you have already experienced. You rooted it to install the custom ROM, and then there are the ROM features which need root, so yes, custom all the way. This is coming from a stock ROM lover by the way, but as I said before, Arya is as stable as a stock ROM, and comes with some really handy features additionally, so its a simple decision for me
ithehappy said:
Unfortunately I don't posses any idea about those ROMs mate. As much as I would like to respect and admire those developers (you have no idea how hard it is to do even a simple mod, let alone a full ROM like that), at the same time I will have to say almost all the ported ROMs have some sort of issues, be it S6 or Note 5 or Note 4, yes, they might be negligible to some, but I want my phone to be performing as stable as possible. And as Arya is based on Stock Note 3 firmware there is no chance of any instability. But if you find Darklord Note 5 port stable and don't encounter any problem then use it, by all means. Heck if Samsung doesn't release 5.1.1 i next couple of months then I too obviously will that route, but for now 5.0 is okay enough for me.
And yes, with a custom ROM you can do a lot of things as you have already experienced. You rooted it to install the custom ROM, and then there are the ROM features which need root, so yes, custom all the way. This is coming from a stock ROM lover by the way, but as I said before, Arya is as stable as a stock ROM, and comes with some really handy features additionally, so its a simple decision for me
Click to expand...
Click to collapse
That sounds like good advice mate. Thanks for all of your help!

To root or to not root?

Hi everyone,
I've been using my OP5 for the past year and now I've exhausted my full 64Gb of storage. Was planning to backup my data onto my laptop and start afresh but I thought it is time to root. I've rooted pretty much every phone I've had in the past for some or the other reason like increasing battery life, overclocking, debloated roms for more storage etc. etc.
I have been technologically dead for the past 2 years so I'm kind of lost right now and in confusion on as to whether to root or not? What would be the main advantages I'd be getting if I root. My phone is still blazing fast, has amazing battery life and OOS is really smooth.
Just in a lot of confusion and want to find more reasons to root.
If you have to ask, you don't need it.
If you root your phone you'll be able to actually use your phone. The only disadvantage to rooting your phone that I see would be that whenever I see a new rom, I want to flash it. I've never understood why somebody would not want to root their phone. Maybe warranty? But then again, I think there are ways around that?
Rickyloc said:
The only disadvantage to rooting your phone that I see would be that whenever I see a new rom, I want to flash it.
Click to expand...
Click to collapse
This! +1
Dirk said:
If you have to ask, you don't need it.
Click to expand...
Click to collapse
Should have seen a reply like this coming my way. Buddy, I've rooted every other phone I've had in the past. Either for updates, better battery life, smoother ram management and so on.. The only thing I couldn't understand is this phone isn't lacking in any of the above mentioned points including updates **touch wood** so wanted to understand others thought process on the advantages cause I am unaware of all the cool mods you can do at the moment, if there are any.
Rickyloc said:
If you root your phone you'll be able to actually use your phone. The only disadvantage to rooting your phone that I see would be that whenever I see a new rom, I want to flash it. I've never understood why somebody would not want to root their phone. Maybe warranty? But then again, I think there are ways around that?
Click to expand...
Click to collapse
Thank you, this was helpful.. I don't see why i shouldn't root it too. I'll probably be rooting too. Which Rom would you suggest for stability and everyday usage with some good extra additional functionality?
Kunal5894 said:
Thank you, this was helpful.. I don't see why i shouldn't root it too. I'll probably be rooting too. Which Rom would you suggest for stability and everyday usage with some good extra additional functionality?
Click to expand...
Click to collapse
My favorite rom is Codename Phoenix. It's fast and it's not on XDA, which is probably why I like it. It's got a lot of features. If there is a feature a rom doesn't have you can always get Xposed or something to enable.
But the main reason for rooting my phone is so that I can use gcam properly. I love Photoshop and gcam offers the best photos. In my opinion, far better than stock or any other.
There's an option just to flash a custom ROM and leave it unrooted ?
I can recommend Resurrection Remix unofficial. Simply followed the steps with unlocking the bootloader and gaining root on stock ROM, then flashed a custom ROM without rooting it.
If you thought battery life was great with stock OOS you're going to be pretty surprised with battery at Resurrection Remix and Flash Kernel ?
Kunal5894 said:
Thank you, this was helpful.. I don't see why i shouldn't root it too. I'll probably be rooting too. Which Rom would you suggest for stability and everyday usage with some good extra additional functionality?
Click to expand...
Click to collapse
The best combination of stability and improved battery life is between the stock stable OxygenOS paired with the latest Franco kernel. I have tried pretty much all of the custom ROMs but every time the battery life of my phone was getting worse (compared to fully stock) until I tried stock OOS with Franco Kernel. But I have to say that I only have rooted my phone to use the Franco Kernel Manager and I do not have any add-ons into Magisk. Root + Franco and everything else is stock. I am not flashing new roms/kernels like crazy and really often, because the stable OOS is getting released once in two or even three months. Franco's kernel is being updated, hm, let's say once in a month or two months. So 99% of the time you are going to use your phone without flashing anything new.

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