I need some advice regarding Kernels - Galaxy S II Q&A, Help & Troubleshooting

Hello
I've come to that point, where I want to save some fuel on my phone. So I thought of flashing a kernel. But I searched on google, with no result.
I am trying to flash a kernel, that is more powerful and more battery saver, than the stock kernel. I planning to flash through odin. I am currently only rooted, with stock recovery and rom.
I would appreciate if anybody could lead me, or link me to a thread that would solve my "problem"
Thanks

There is no such thing as a kernel that's "more powerful and more battery saver". You have your phone setup differently to everyone else, you use your phone differently to everyone else and your phone came out of the factory slightly differently to everyone else's.
A kernel that runs well for me might not run well for you.
I suggest you go the development sections of the forum & read the first few pages and the the last 10-20 pages of the particular threads devoted to different kernels. That way you will get an idea of the features/pluses/minuses of each kernel, and also see other users' experiences with that kernel.
Then you can test different kernels for yourself to find one that works best for you.
Given how simple it is to flash a kernel/try one out & how simple it is to restore a backup & go back to your previous setup if you don't like the kernel you try (or simply flash your old kernel), there's no excuse for you not to try a bunch of kernels yourself.

i start to belive every kernal has an advantge but the stock kernal have all the average requirment ....so stuck with it
Sent from my GT-I9100 using Tapatalk

shkoks said:
i start to belive every kernal has an advantge but the stock kernal have all the average requirment ....so stuck with it
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
You are probably right .
Seems even with 300 posts the OP has yet to master faqs or guides .
jje

MistahBungle said:
There is no such thing as a kernel that's "more powerful and more battery saver". You have your phone setup differently to everyone else, you use your phone differently to everyone else and your phone came out of the factory slightly differently to everyone else's.
A kernel that runs well for me might not run well for you.
I suggest you go the development sections of the forum & read the first few pages and the the last 10-20 pages of the particular threads devoted to different kernels. That way you will get an idea of the features/pluses/minuses of each kernel, and also see other users' experiences with that kernel.
Then you can test different kernels for yourself to find one that works best for you.
Given how simple it is to flash a kernel/try one out & how simple it is to restore a backup & go back to your previous setup if you don't like the kernel you try (or simply flash your old kernel), there's no excuse for you not to try a bunch of kernels yourself.
Click to expand...
Click to collapse
You are right, but I have no idea on how to flash an kernel on odin.
EDIT(not really): Aha! I need to flash the TAR file.. If I am right. Also Is there a way to still keep the stock recovery ?

TheStigx said:
You are right, but I have no idea on how to flash an kernel on odin.
EDIT(not really): Aha! I need to flash the TAR file.. If I am right. Also Is there a way to still keep the stock recovery ?
Click to expand...
Click to collapse
Stock as in no CWM recovery ??????????
jje

JJEgan said:
Stock as in no CWM recovery ??????????
jje
Click to expand...
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YEs, I was wondering If it was possible.

Flash a stock kernel .
jje

JJEgan said:
Flash a stock kernel .
jje
Click to expand...
Click to collapse
Well I wont.

Related

Can someone show me how to flash a kernel?

Going to flash S8 from stock, but I have no idea how to flash the kernel first.
Here's the link to the kernel thread:
http://forum.xda-developers.com/show....php?t=1289460
I don't even know which link is the kernel itself, so I figure I better ask for help.
http://forum.xda-developers.com/showthread.php?t=1281779
Thread moved from the Dev section to Q&A section.
My advice to the OP is that if you dont know how to flash, then dont. Read up first, and there is a lot to read... but its all good information on how to NOT mess up your device.
Also, if you want to flash S8, check out his site and his thread. Mikey steers his users in the right direction and makes a great rom.
Pirateghost said:
http://forum.xda-developers.com/showthread.php?t=1281779
Click to expand...
Click to collapse
thanks for taking your time to do something helpful
Red5 said:
Thread moved from the Dev section to Q&A section.
My advice to the OP is that if you dont know how to flash, then dont. Read up first, and there is a lot to read... but its all good information on how to NOT mess up your device.
Also, if you want to flash S8, check out his site and his thread. Mikey steers his users in the right direction and makes a great rom.
Click to expand...
Click to collapse
I am using Mikey's instructions...I've flashed SVII before, but it didn't require flashing a kernel. I just want to make sure I do it right, but so far have not gotten an answer to this rather simple question. If anyone feels like spilling the beans before I just have to google it and go with some random's method, I'd like it alot.
Damani311 said:
thanks for taking your time to do something helpful
Click to expand...
Click to collapse
Also. There is a FAQ thread that pretty much explains how to flash a kernel using Odin.
No extra thread needed.
Sent from my SAMSUNG-SGH-I777
Pirateghost said:
Also. There is a FAQ thread that pretty much explains how to flash a kernel using Odin.
No extra thread needed.
Sent from my SAMSUNG-SGH-I777
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1309346
its that link...
says that kernel is not for battery life though, and links you to Entropy's kernel...but on his thread I don't know which one of the 10+ links are the actual kernel DL link, really appreciate it if you could tell me which one it is
Damani311 said:
http://forum.xda-developers.com/showthread.php?t=1309346
its that link...
says that kernel is not for battery life though, and links you to Entropy's kernel...but on his thread I don't know which one of the 10+ links are the actual kernel DL link, really appreciate it if you could tell me which one it is
Click to expand...
Click to collapse
entropy's post has several to choose from. they are all dated. the dates are the versioning (if you will)
how hard is it to click on one and download it? maybe the most recent one?
also, Entropy's kernels in that thread are for CWM, flashable just like any other CWM zip file
perhaps you need to read the FAQ thread and the HOW TO ROOT thread. this basic stuff is explained very well.
Latest Entropy kernel is DD_11132011.zip For future reference, the file names are based on the release date.
Lawrence of a Labia said:
Latest Entropy kernel is DD_11132011.zip For future reference, the file names are based on the release date.
Click to expand...
Click to collapse
ok I DL'ed that zip file, and tried to flash w/ odin but it doesnt list it as a valid .tar file, and won't let me see it in the list of files I can choose from to flash
downloaded cwm, and flashed it with odin (the exact way I tried to flash the kernel, but this one actually shows up for use)
cwm is installed, moved the .zip to SD and installed with cwm, and nothing. Phone is not rooted and completely the same as before the install...
Not sure what to do at this point.....why didn't the kernel flash?
Should I just go ahead and try to flash the ROM?
Damani311 said:
ok I DL'ed that zip file, and tried to flash w/ odin but it doesnt list it as a valid .tar file, and won't let me see it in the list of files I can choose from to flash
downloaded cwm, and flashed it with odin (the exact way I tried to flash the kernel, but this one actually shows up for use)
cwm is installed, moved the .zip to SD and installed with cwm, and nothing. Phone is not rooted and completely the same as before the install...
Not sure what to do at this point.....why didn't the kernel flash?
Should I just go ahead and try to flash the ROM?
Click to expand...
Click to collapse
what exactly did you expect to happen??
flashing kernel =/= rooting your phone.....
i am completely confused as to why you dont read the FAQs i have repeatedly pointed you to?? they arent there for forum fluff, they serve a freakin purpose!
since its obvious you dont want to go look for yourself, here are the links:
**AT&T SGS2 Frequently Asked Questions(FAQS)**
[How To] Easily Root your SGS2
Pirateghost said:
what exactly did you expect to happen??
flashing kernel =/= rooting your phone.....
i am completely confused as to why you dont read the FAQs i have repeatedly pointed you to?? they arent there for forum fluff, they serve a freakin purpose!
since its obvious you dont want to go look for yourself, here are the links:
**AT&T SGS2 Frequently Asked Questions(FAQS)**
[How To] Easily Root your SGS2
Click to expand...
Click to collapse
Installation
From Stock:
1. Install Entropy512's kernel, found here.
2. Entropy512's kernel will give you root and CWM. Download Titanium Backup from the Market, and after allowing root permissions, back up your apps.
Durr me no speakee english
But I flashed the ROM with CWM anyway, and it worked. The phone is blazingly clean and fast and battery life has dramatically improved. Thanks everyone!

[Q] What should I do once I have bought my SGS2 I9100 (non-G)

Hi I've bought myself the SGS2 (non-G version).
now, to root, do I use the method here? http://forum.xda-developers.com/showthread.php?t=1103399
and let's say i have rooted it using CF-root 5.2, do I just pick a ROM and start flashing them? Or do I proceed to flash a Custom Kernel first before the ROM?
Anyway, I noticed that there are 2 sections for the SGS2G and the SGS2 (non-G). Which ROMS do I select from and are the ROMS variant dependent? means if I have the non-G version, I cannot install a ROM from the SGS2 Original section? A little help please! So sorry for being a noob.
Yes follow those rooting instructions, after the phone is rooted download a rom and copy it to your phone then flash it via cmw or manually via recovery mode, reboot while holding power, home and volume up.
Personally I recommend bezke UltraIcs, using it without issue
http://forum.xda-developers.com/showthread.php?t=1393569
Sent from my GT-I9100 using Tapatalk
adrianj said:
Hi I've bought myself the SGS2 (non-G version).
now, to root, do I use the method here? http://forum.xda-developers.com/showthread.php?t=1103399
Click to expand...
Click to collapse
1st thing you do: read, read, read.
You can use whatever root method you feel comfortable with. I've used CF-Root, Odia's insecure kernels, SuperOneClick, and flashing Siyah kernel. They all work fine.
adrianj said:
and let's say i have rooted it using CF-root 5.2, do I just pick a ROM and start flashing them? Or do I proceed to flash a Custom Kernel first before the ROM?
Click to expand...
Click to collapse
Most ROMs come with their own kernels, so if you flash a custom kernel, then a ROM, then the kernel that came with the ROM will overwrite whatever custom kernel you flashed first.
adrianj said:
Anyway, I noticed that there are 2 sections for the SGS2G and the SGS2 (non-G). Which ROMS do I select from and are the ROMS variant dependent? means if I have the non-G version, I cannot install a ROM from the SGS2 Original section? A little help please! So sorry for being a noob.
Click to expand...
Click to collapse
What 2 sections do you mean? The Galaxy S II Original Android Development, and the Galaxy S II Android Development forums?
It's important to note that these are not G and non-G. Original means developed from the ground up. (think CyanogenMod) The non-original generally means derivative from another ROM - usually stock.
I9100G ROMs are scattered throughout the I9100 forums, because there is currently no separate forum for the I9100G. The post title for these ROMs should always note that they are for the I9100G instead of the I9100 though. As long as you follow my suggestion for 1st of all above, you should be fine.
If you have the i9100g choose the roms that clearly indicates i9100G only in title, otherwise it should work just fine for i9100. Roms in original development indicate roms built completely by the developer hence the original. The Android development roms are roms that could be based off of someone else' rom or similar. You can flash roms from either section.
Just make sure to properly flash them and never forget to make a backup.
Edit: ctomgee answered.
Kaze105 said:
If you have the i9100g choose the roms that clearly indicates i9100G only in title, otherwise it should work just fine for i9100. Roms in original development indicate roms built completely by the developer hence the original. The Android development roms are roms that could be based off of someone else' rom or similar. You can flash roms from either section.
Just make sure to properly flash them and never forget to make a backup.
Edit: ctomgee answered.
Click to expand...
Click to collapse
Beat you by 2 min. It was a long post though, so it took me a while.
simbesh said:
Yes follow those rooting instructions, after the phone is rooted download a rom and copy it to your phone then flash it via cmw or manually via recovery mode, reboot while holding power, home and volume up.
Personally I recommend bezke UltraIcs, using it without issue
http://forum.xda-developers.com/showthread.php?t=1393569
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
I'm downloading as we speak! Seems good! Love the ICS theme though. Are u using a custom kernel?
ctomgee said:
1st thing you do: read, read, read.
You can use whatever root method you feel comfortable with. I've used CF-Root, Odia's insecure kernels, SuperOneClick, and flashing Siyah kernel. They all work fine.
Most ROMs come with their own kernels, so if you flash a custom kernel, then a ROM, then the kernel that came with the ROM will overwrite whatever custom kernel you flashed first.
What 2 sections do you mean? The Galaxy S II Original Android Development, and the Galaxy S II Android Development forums?
It's important to note that these are not G and non-G. Original means developed from the ground up. (think CyanogenMod) The non-original generally means derivative from another ROM - usually stock.
I9100G ROMs are scattered throughout the I9100 forums, because there is currently no separate forum for the I9100G. The post title for these ROMs should always note that they are for the I9100G instead of the I9100 though. As long as you follow my suggestion for 1st of all above, you should be fine.
Click to expand...
Click to collapse
Thank you so much for the prompt reply! Finally I've got the answers to my questions! Btw, what ROM are you currently using? What I'm particularly concerned about is the custom Kernel that can help me optimize my battery.
adrianj said:
I'm downloading as we speak! Seems good! Love the ICS theme though. Are u using a custom kernel?
Click to expand...
Click to collapse
Please be aware that though simbesh said he is using it without issues, ICS is NOT officially released. Some users have issues with ICS ROMs that others use with absolutely no problems.
As Kaze105 said, ALWAYS make sure you make a backup before you flash. (in case you need to go back)
adrianj said:
I'm downloading as we speak! Seems good! Love the ICS theme though. Are u using a custom kernel?
Click to expand...
Click to collapse
Nice, yea the ics theme is very slick. It was updated this morning to v2.1 with the latest i9100 kernal XXLPB
Sent from my GT-I9100 using Tapatalk
simbesh said:
Nice, yea the ics theme is very slick. It was updated this morning to v2.1 with the latest i9100 kernal XXLPB
Sent from my GT-I9100 using Tapatalk
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Click to collapse
nice! this will be my first ever custom rom! this rom is for the i9100 (non-G) right? cuz it didn't say 'G' in the title. just making sure.
ctomgee said:
As Kaze105 said, ALWAYS make sure you make a backup before you flash. (in case you need to go back)
Click to expand...
Click to collapse
This this this
Yes standard i9100, it will be very clear if its i9100G or i9100 at&t etc if its a special rom
Sent from my GT-I9100 using Tapatalk
ctomgee said:
Please be aware that though simbesh said he is using it without issues, ICS is NOT officially released. Some users have issues with ICS ROMs that others use with absolutely no problems.
As Kaze105 said, ALWAYS make sure you make a backup before you flash. (in case you need to go back)
Click to expand...
Click to collapse
and by making a backup, i use the CWM nandroid backup? to restore from back up is through the same CWM?
adrianj said:
Thank you so much for the prompt reply! Finally I've got the answers to my questions! Btw, what ROM are you currently using? What I'm particularly concerned about is the custom Kernel that can help me optimize my battery.
Click to expand...
Click to collapse
I am on stock XXKI3, which is 2.3.5, with Siyah Kernel 2.6.4. There are newer firmwares, and newer versions of Siyah, but I feel no need to upgrade as of now. I've modded my firmware myself pretty heavily, and prefer to do all the tweaks myself. Helps me understand how my phone works better.
If you're interested in a kernel that will help with battery, look at SpeedMod, then maybe Siyah. SpeedMod users swear by their battery life. I use Siyah because it has more features, and has more customization. But it's a preference thing.
adrianj said:
and by making a backup, i use the CWM nandroid backup? to restore from back up is through the same CWM?
Click to expand...
Click to collapse
Correct
Sent from my GT-I9100 using Tapatalk
adrianj said:
and by making a backup, i use the CWM nandroid backup? to restore from back up is through the same CWM?
Click to expand...
Click to collapse
Yes, should be. Though be careful - flashing some kernels automatically installs certain versions of CWM. If your backup is made in a different version of CWM than what you are trying to restore from, it may not work.
ctomgee said:
I am on stock XXKI3, which is 2.3.5, with Siyah Kernel 2.6.4. There are newer firmwares, and newer versions of Siyah, but I feel no need to upgrade as of now. I've modded my firmware myself pretty heavily, and prefer to do all the tweaks myself. Helps me understand how my phone works better.
If you're interested in a kernel that will help with battery, look at SpeedMod, then maybe Siyah. SpeedMod users swear by their battery life. I use Siyah because it has more features, and has more customization. But it's a preference thing.
Click to expand...
Click to collapse
seems pretty interesting the way you mod your phone! and by modding the phone yourself, you mean you take apart tweaks from different ROMs and install them in your phone? I hope im not imposing but do you mind sharing with me the tweaks that you have done to your stock rom? i might do the same if the ICS rom doesn't work the way i want it to.
adrianj said:
seems pretty interesting the way you mod your phone! and by modding the phone yourself, you mean you take apart tweaks from different ROMs and install them in your phone? I hope im not imposing but do you mind sharing with me the tweaks that you have done to your stock rom? i might do the same if the ICS rom doesn't work the way i want it to.
Click to expand...
Click to collapse
The more involved mods I have are:
Phone.apk tweaked to have Noise Reduction off by default in phone calls
Battery icon with % in status bar
CRT-off animation on screen off
Rotation animation in UI
The first three involved decompiling the files involved, editing the files, and recompiling. The rotation animation involved downloading some files that another kind soul posted that were from the Galaxy Note and installing them on my phone in place of the files that were already there. All require root. You can find all of these in the forums with a search...
Wow. I just hit 500 posts. Crazy.
ctomgee said:
The more involved mods I have are:
Phone.apk tweaked to have Noise Reduction off by default in phone calls
Battery icon with % in status bar
CRT-off animation on screen off
Rotation animation in UI
The first three involved decompiling the files involved, editing the files, and recompiling. The rotation animation involved downloading some files that another kind soul posted that were from the Galaxy Note and installing them on my phone in place of the files that were already there. All require root. You can find all of these in the forums with a search...
Wow. I just hit 500 posts. Crazy.
Click to expand...
Click to collapse
congrats on your posts! anyway, those mods are build dependent? or universal?
adrianj said:
congrats on your posts! anyway, those mods are build dependent? or universal?
Click to expand...
Click to collapse
The first three I think are build dependent. Some people have tried different versions on other firmwares and had some success, but others, not so much.
The rotation animation one, I'm not sure about.

What to look for in a kernal

Hey guys, I'm not gonna ask the dreaded question "Which Kernal is best?", but I am currently rooted and want to overclock to 1.5, but besides that, what else should I be looking for in a kernal?
What about modems (or is that embedded in the kernal)?
We only have 2 options, Entropy or Siyah and they do not include a modem.
Check the dev section for kernels & modems.
butikofer08 said:
Hey guys, I'm not gonna ask the dreaded question "Which Kernal is best?", but I am currently rooted and want to overclock to 1.5, but besides that, what else should I be looking for in a kernal?
What about modems (or is that embedded in the kernal)?
Click to expand...
Click to collapse
Both kernels we have offer oc abilities.
Personally I would look at stability and battery life but that is just me. Try both and see which suits your needs.
Modems are not associated with kernel and depend on your area. Whichever works the best where you are.
We have two choices here and both are incredibly stable and allow overclocking. You can't go wrong. Basically the biggest difference as far as I can see is the recovery that comes with it which is almost entirely preference.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
So if I find a ROM I like but want to experiment with the other available Kernal, is it as simple as flashing my ROM first, then once booted up go into Odin and flash the other kernal i want to experiment with?
Or is the kernal that comes with a ROM the one your stuck with?
butikofer08 said:
So if I find a ROM I like but want to experiment with the other available Kernal, is it as simple as flashing my ROM first, then once booted up go into Odin and flash the other kernal i want to experiment with?
Or is the kernal that comes with a ROM the one your stuck with?
Click to expand...
Click to collapse
Just use CWM to flash the zips provided or Mobile Odin if you prefer it that way.
No need to use a computer to change the Kernel.
LiLChris06 said:
Just use CWM to flash the zips provided or Mobile Odin if you prefer it that way.
No need to use a computer to change the Kernel.
Click to expand...
Click to collapse
Thanks for the quick response chris,
I guess what I'm asking is if I have a rom with the Syiah kernal, is it possible to keep that same ROM but swap kernals, sorry, I just wasn't clear on what your answer meant.
I'm guessing your saying it is indeed possible and just flash the .zip for a different Kernal on top of an already installed ROM.
Sorry, I'm tired...
Changing the Kernel on 2.3.4 & 2.3.6 roms will not break anything.
For CM7, CM9, MIUI etc you have to stick with what is included or see what works with it.
AntwanL said:
We have two choices here and both are incredibly stable and allow overclocking. You can't go wrong. Basically the biggest difference as far as I can see is the recovery that comes with it which is almost entirely preference.
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
For example, latest Siyah with touch recovery. Awesome for flashaholics.
Your talking of version .14 I assume, if so, doesn't it say in .13 description that .13 would be the last for Gingerbread?
Obviously it works if your using it, so i'm gonna download now...

New to i777, please help

Just moved from iPhone to i777, wanted to get ICS, but eneded up bricking my first phone by installing something meant for i9000. At that time I didn’t know Galaxy S2 has variants, just searched for S2 and got burned. My fault…..should have understood better.
I want to do it right this time so I have been reading about i777, ROMs, kernels, CWM.
I want to put SHOStock or CM9 ROM.
I know where these ROMs are and how to flash them using CWM.
But that’s where my confusion starts, that there are just too many sources and options and I don’t know which one is right.
So please advise.
How do I root?
Using this? It has multiple options
http://forum.xda-developers.com/showthread.php?p=18576627#post18576627
or this ?
http://galaxys2root.com/galaxy-s2-root/how-to-root-att-galaxy-s2-sgh-i777/
Which kernel to use
The one mentioned in SHOStock thread #3 post the Cherry Picker Kernel for i777 or Entorpy? Siayh
How do I get CWM on these, isn’t recovery part of the kernel or do I flash It separately or may be use ROM Manager, once rooted.
Modem? What does it do? Is it for phone or wi-fi and how do I know which one to use.
My phone’s data
SGH-i777
Android 2.3.6
Baseband I777UCKK6
Kernel 2.6.35.7
Build#
GINGERBREAD.UCKK6
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
First of all thanks for responding.......
Is there a relation between which ROM will work with which Kernel, I may be wrong but I got the impression, depending on which ROM you are putting, you should have a kernel that supports it.
Also it seems like, ShoStock has its own variation of entropy, named cherry picker.
Thanks.......
mattdm said:
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
Click to expand...
Click to collapse
Agree with matts post just like to add that you can get the free mobile odin here http://forum.xda-developers.com/showthread.php?t=1347899 to flash the kernel so you dont spend any money. download file, extract, move apk to sdcard, use root or file explorer locate and run the apk. follow instructions on flashing a kernel
Thanks a ton got it.....
aj9507 said:
Agree with matts post just like to add that you can get the free mobile odin here http://forum.xda-developers.com/showthread.php?t=1347899 to flash the kernel so you dont spend any money. download file, extract, move apk to sdcard, use root or file explorer locate and run the apk. follow instructions on flashing a kernel
Click to expand...
Click to collapse
Ah yes, thanks. I always forget to mention that.
Itsme1967 said:
First of all thanks for responding.......
Is there a relation between which ROM will work with which Kernel, I may be wrong but I got the impression, depending on which ROM you are putting, you should have a kernel that supports it.
Also it seems like, ShoStock has its own variation of entropy, named cherry picker.
Thanks.......
Click to expand...
Click to collapse
Sometimes there is, but it seems like most of the ICS kernels are interchangeable. Just try out each kernel for a few days...once you have CWM, switching kernels is no big deal. When switching kernels, though, it's always wise to flash jivy's Kernel Cleaning Script just before flashing a new kernel.
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Itsme1967 said:
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Click to expand...
Click to collapse
u can use mobile odin or cwm but its just a matter of preference you just had to use mobile odin at first to acquire a cwm enabled kernel but pretty much you can flash everything in cwm as long as its specified to be cwm flashable zip kernels roms and modems and such
edit: the free mobile odin only lets you flash kernels btw its the premium version that lets you do everything without going to recovery
hope to help
Itsme1967 said:
Can you use CWM to flash kernels as well ? I thought they always have to be done using ODIN.
May be I underestimated CWM, I thought it was for ROMs and zips only.
Click to expand...
Click to collapse
You don't seem to have a firm grasp on all this. Maybe you should do some more reading before going further...
Anyway, here's a brief explanation:
A kernel is the underlying core of the operating system; it is how the OS interacts with the hardware.
A rom (the proper term is actually firmware, but nobody uses it) is basically the whole user interface; it's the part of the OS you see. When you flash a rom, you're flashing everything, including a kernel.
Like I said before, you never want to flash a custom kernel using Odin. Doing so will trip the phone's flash counter, and this will show up if you ever have to take the phone in for warranty stuff.
The reason it's ok to use Odin to flash the stock with root package is that it comes with the stock kernel, not a custom one. Basically, once you're rooted, you shouldn't touch Odin again unless its to recover from a brick. Basically everything else can be done in CWM.
Yes I am still reading & trying to get a grip on it.
So first I will root it, then flash kernel using Mobil Odin
Then get in CWM mode ad flash ROM, which will come with the kernel i.e. cherrypicker kernel and modem I need.
Yes one part I have understood very well is that use CWM as much as one can to avoid committing mistakes by flashing something that doesn't belong.
Sorry for asking so many qs., I wish I could understand this faster.....
Thanks again........
Itsme1967 said:
Yes I am still reading & trying to get a grip on it.
So first I will root it, then flash kernel using Mobil Odin
Then get in CWM mode ad flash ROM, which will come with the kernel i.e. cherrypicker kernel and modem I need.
Yes one part I have understood very well is that use CWM as much as one can to avoid committing mistakes by flashing something that doesn't belong.
Sorry for asking so many qs., I wish I could understand this faster.....
Thanks again........
Click to expand...
Click to collapse
Yeah no problem. I would suggest that you wait a while before doing this. Read through all the stickies and guides to can find, and get more familiar with everything. Then after a couple days, go for it.
Crap, I'm starting to think I should not but a sg2....
Sent from my HTC Glacier using XDA
rpomponio said:
Crap, I'm starting to think I should not but a sg2....
Sent from my HTC Glacier using XDA
Click to expand...
Click to collapse
Why?
I remember my first flash....
Sent from my SGH-I777 using xda premium
jthatch12 said:
I remember my first flash....
Sent from my SGH-I777 using xda premium
Click to expand...
Click to collapse
I remember mine, read and re read the guides 3 to 5 times before I even touched my phone that I had for only three hours before I got bored with stock lol. To op don't be afraid man this forum is here to help and the gs2 is a great phone
Sent from my SGH-I777 using XDA
:*) nice ! Love these kinds of threads.
mattdm said:
Why?
Click to expand...
Click to collapse
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Sent from my HTC Glacier using XDA
rpomponio said:
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Sent from my HTC Glacier using XDA
Click to expand...
Click to collapse
Wifi works fine on ics
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Nick281051 said:
Wifi works fine on ics
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Click to expand...
Click to collapse
So I just need to go threw the root process, make a back up, and when I flash the ics ROM I choose, my wifi will be back?? Sorry for the noobish questions, I plan on rooting my sg2 as soon as I get home from buying it and I don't want to brick it... Any help is much appreciated!!! Thank you in advance!
Sent from my HTC Glacier using XDA
rpomponio said:
Can you send me a guide please, I have been reading for a couple days now and alot of what I see is wifi breaks after root. I am buying a sg2 in about 2 weeks so plan on seeing me around. I want to root it and run ics but I need my wifi... Any help is greatly appreciated!! Thank you in advance!!!
Click to expand...
Click to collapse
mattdm said:
Here's what you need to do:
1. Use Odin to flash stock UCKH7 with Root, available here. Be aware that doing this will require a full wipe, so do what you can to back up your sms/mms/contacts and other data. READ EVERY STEP CAREFULLY. Do not flash a kernel with Odin.
2. Now that you have root access, download Mobile Odin from the Play Store. Use it to flash either Entropy's DD or Siyah. This will install CWM Recovery.
3. Boot into CWM Recovery and make a nandroid backup.
4. Use CWM to flash SHOStock or CM9.
Click to expand...
Click to collapse
You don't need any more of a guide than that. Don't worry about breaking wifi, that isn't a problem on any of the popular roms.
If you want a Samsung based ICS rom that works really well, I suggest ShoStock2. If you want an AOSP based rom, most people suggest AOKP. I haven't tried it personally.
rpomponio said:
So I just need to go threw the root process, make a back up, and when I flash the ics ROM I choose, my wifi will be back??
Click to expand...
Click to collapse
You're wifi won't go away in the first place.

[Q] Kernel not flashing help

I have flashed paranoidandroid 3.15 on my galaxy s3 a couple weeks ago, aside the occasional screen that win't turn on I haven't had any problem, but I set my mind on flashing a new kernel in order to be able to change thez governor. I tried to flash air kernel on, I did exactly what I was told: Boot into recovery, clear cache/delvik, installed kernel from sd card, and rebooted. But after the phone being rebooted, I still had the stock kernel.
My question is, why did this happen, and how do I fix it?
All help is appreciated
what recovery? link to the kernel?
Glebun said:
what recovery? link to the kernel?
Click to expand...
Click to collapse
I'm running TWRP ( Team Win Recovery Project)
http://forum.xda-developers.com/showthread.php?t=1469842 link to the kernel, although if you know any kernels that work better/ more appropriate for ParanoidAndroid, I am more than open to suggestions
vonniel said:
I'm running TWRP ( Team Win Recovery Project)
http://forum.xda-developers.com/showthread.php?t=1469842 link to the kernel, although if you know any kernels that work better/ more appropriate for ParanoidAndroid, I am more than open to suggestions
Click to expand...
Click to collapse
Kernel is for nexus s not galaxy s3
Sent from my GT-I9300 using xda premium
wow, you're lucky the updater-script saved your phone. Flashing wrong firmware will kill it
Glenbun. Only mismatched, corrupted, or missing boot loaders can kill a phone.
yeah-yeah, but we should scare the noobs away from flashing the wrong firmware that potentially includes a bootloader
Glebun said:
yeah-yeah, but we should scare the noobs away from flashing the wrong firmware that potentially includes a bootloader
Click to expand...
Click to collapse
Glebun u have a point, even other incompatible components of recovery zip packages can brick the phone.
Sent from my Supercharged V12 Samsung Galaxy S3 using Tapatalk
Glebun said:
wow, you're lucky the updater-script saved your phone. Flashing wrong firmware will kill it
Click to expand...
Click to collapse
Wow, I feel so dumb ^^' I'll be more careful next time around.
What kernel would you recommend for me?
I recommed stock mb5 or speedmod k2-12 kernels for you
Bahadirafro said:
I recommed stock mb5 or speedmod k2-12 kernels for you
Click to expand...
Click to collapse
Well, I don't really know either of them, I don't mind stock, but I want to change things, sometimes it just isn't up for the task, or uses up battery when I would rather it didn't, without even knowing what they do, and looking around, I found the perseus kernel, I would like some opinions on the kernel, I would be very grateful if you told me if it fits me, if it's compatible with ParanoidAndroid, and finally if you have a better suggestion for a kernel.
http://forum.xda-developers.com/showthread.php?t=1691401
read the first post of the thread to find out if it's compatible with your ROM.
and try it to see if it suits you
If I'm running TWRP can I still download kernels that say they are meant for CWM?
yes

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