[Q] Huge amount of questions about Kernals - EVO 4G Q&A, Help & Troubleshooting

So i know you guys have probably read and answered many of these, im sorry, but i still have a lot of questions
1. How do you flash a new Kernal on your phone?
2. If you don't like the new kernal, how do you switch back to stock?
3. Do kernals affect the phones capabilites such as wifi tether?
4. Which Kernals are stable?
5. Which kernals are best for Battery Life?
My main concern is the 2nd question.
Thx for you help guys, im new to these forums but i like all the help that goes around in here =D

Read this thread and don't post question threads in the development section. Questions belong in the Q&A section.

1. How do you flash a new Kernal on your phone? In recovery mode
2. If you don't like the new kernal, how do you switch back to stock? You flash the stock kernel
3. Do kernals affect the phones capabilites such as wifi tether?yes
4. Which Kernals are stable?varies by phone and ROM
5. Which kernals are best for Battery Life?varies by phhone and ROM

I might add that when you flash a kernel make sure you wipe the cache and dalvik-cache prior to flashing it.

Related

Android :: HTC Evo 4G :: Questions on flashing custom ROMs/kernels

Hey everyone,
I'm still fairly new to Android. I had an iPhone previously, which I jailbroke and was quite comfortable with doing that. Now Android has a whole new slew of options that I'm not quite sure I understand and/or am comfortable with.
My Evo is rooted with the most up-to-date OTA, so I've got that down and I'm comfortable with how all of that works. I've installed ClockworkMod and wanted to start flashing some custom ROMs and kernels... but I don't know how they work together.
So, on to the questions:
## Can you flash any kernel with any custom ROM?
## Does the order you flash them in matter?
## I have a recovery ROM in case anything goes wrong... but how do you recover the kernel if things go wrong?
Really just looking for some quick and dirty info on these topics.
Thanks!
Hi, I will like the same info as you. I flashed kings kernel #11 on my EVO and I noticed that my videos don't play as smooth as they did with the original HTC Kernel. So I too will like to know how to recover my original Kernel. I hope someone could help us. If I found anything, I'll let you know.
reported it to mods, so that it is moved to the right section, more help will be provided in the right section
nacienleongto said:
Hi, I will like the same info as you. I flashed kings kernel #11 on my EVO and I noticed that my videos don't play as smooth as they did with the original HTC Kernel. So I too will like to know how to recover my original Kernel. I hope someone could help us. If I found anything, I'll let you know.
Click to expand...
Click to collapse
Flash rom first, kernel second. Threads should specify if its for AOSP roms or Sense. What rom are you on? There are lots of kernel threads in the dev forums pick one you like and go! HTC kernels are there too if you search.

[Q] Questions about Kernels

So i know you guys have probably read and answered many of these, im sorry, but i still have a lot of questions
1. How do you flash a new Kernal on your phone?
2. If you don't like the new kernal, how do you switch back to stock?
3. Do kernals affect the phones capabilites such as wifi tether?
4. Which Kernals are stable?
5. Which kernals are best for Battery Life?
My main concern is the 2nd question.
Thx for you help guys, im new to these forums but i like all the help that goes around in here =D

[Q] Best kernel to use with Stock(rooted) Sense.

Looking for a good kernel to use with stock rooted ROM. So many have been posted not sure which work well. I have removed all bloat programs, now just want to be able to save battery.
So undervolt with profiles.
Suggestions
HeyIt'sLou's #4 Kernel.
This is a question, it belongs in the Q&A sub-forum, not Android Development

[Q] How do I install a Kernal?

Hey guys and the NEWBIE (me) is back...
1. How do i get the SBC kernal??? I heard its a great kernal for extended battery life
2.How do i install it? I currently have CM7 installed as a rom
Thanks
Go search the Android Development section for AOSP kernels and find one that supports SBC. I think Savaged-Zen kernels and Tiamat kernels are the best and have sbc choices.
kernel manager in the market, its the easiest way
NewZJ said:
kernel manager in the market, its the easiest way
Click to expand...
Click to collapse
Bump +1 for kernel manager. Make sure you spell kernel correctly, else you may not find it. Free version works fine as a newbie user.
Thanks everyone
In general:
1) Dowload kernel to the root of your phone and boot into recovery
2) Wipe davlik
3) Wipe cache
4) Install kernel from the root of your phone and reboot
Go to "About Phone" to check the kernel
OR, download Kernel Manager.
jsantos248 said:
Hey guys and the NEWBIE (me) is back...
1. How do i get the SBC kernal??? I heard its a great kernal for extended battery life
2.How do i install it? I currently have CM7 installed as a rom
Thanks
Click to expand...
Click to collapse
jsantos, what the guys said above is a great start... not to fear-monger or anything, but do you know exactly what the kernel is, and the various types of kernels that are out there? I'm not one to discourage the use of any particular type of kernel/ROM, but before diving headfirst into it without really knowing the ups/downs of it, it'd behoove you to make sure you know what you're getting into. That being said, I dug up some links that should help you out.
Here is a link regarding SBC kernels that you probably should check out, as it pertains to potential major issues with them:
http://forum.xda-developers.com/showthread.php?t=890448
Here is a link to probably the best guide on explaining kernels for the EVO, brought to you by mroneeyedboh... this page explains the various categories of kernels, and how they affect your phone:
http://forum.xda-developers.com/showthread.php?t=894880
Finally, here is a link to a page written by skydeaner, containing testing and benchmark information on many many different kernels for the EVO (including SBC and non-SBC variants), which may help you determine which kernel is actually best for your needs:
http://forum.xda-developers.com/showthread.php?t=790559
http://home.comcast.net/~evoreviews/
Best of luck to you!

[Q] Questions regarding kernels and rom

Long time lurker, first time poster :3. Anyways, I have a few questions regarding the flashing of ROMs and kernels. I have been looking around for a nice ROM(s) or a kernel(s) to flash the t989. Currently I am running on rooted stock and want to mix it up a bit. I came across the Darkside X v1 Final kernel located here: http://forum.xda-developers.com/showthread.php?t=1466283&page=44 .
Now the question is can I flash this kernel but retain the stock ROM?
- any advantages vs flashing kernel and a new ROM?
- disadvantages?
Is there anything that I should be concerned about, or pay special attention to before proceeding with this?
Thanks!
ohaiu said:
Long time lurker, first time poster :3. Anyways, I have a few questions regarding the flashing of ROMs and kernels. I have been looking around for a nice ROM(s) or a kernel(s) to flash the t989. Currently I am running on rooted stock and want to mix it up a bit. I came across the Darkside X v1 Final kernel located here: http://forum.xda-developers.com/showthread.php?t=1466283&page=44 .
(1) Now the question is can I flash this kernel but retain the stock ROM?
- (2) any advantages vs flashing kernel and a new ROM?
- (3) disadvantages?
(4) Is there anything that I should be concerned about, or pay special attention to before proceeding with this?
Thanks!
Click to expand...
Click to collapse
(1) Yes you can, just wipe cache and dalvik cache prior to flashing kernel
(2) Depends on what the kernel has to offer. I'm not super well informed on tdjs kernel but for one you get BLN support which is great. You also get performance and battery enhancements plus many other goodies.
(3) Not really, any kernel on these forums is better than stock so you're looking at nothing but advantages.
(4) As long as you follow the proper steps to installing a kernel you should be fine. Common sense is your friend. Once you flash a specific kernel you might want to look at under clocking and under vaulting to extend your battery life with minimal performance decrease.
BONUS: TDJ's Darkside ROM and Eugenes Streamline Kernel are the best for me. Great stability, battery and performance. Refer to my signature for links.
Best of luck
The best advice I can give is Back up your stock rom with rom manager and back your apps with titanium, after that you can flash flash any rom and take it on a test drive to see how it feels. If you see it's buggy you can go back to the stock you had to begin with like you never did a thing.
Personalty I tried most of the ICS roms an found bugs I just couldn't deal with in one way or another. I did find this ICS rom today
http://forum.xda-developers.com/showthread.php?t=1623430
This has the leaked tmo kernel and radio making it almost the complete update we so deserve lol. anyway I put it on today and sofar all I could say is it is sweet no bugs this far and love the ICS......
Last advice is before flash do the darkside super wipe this does a better job then just wipe cache and dalvik cache and you dont lose the data you have backed up.
Oh also follow the directions from any rom to the tee to lessen the chance for problems
[Q] Questions regarding kernels and romArrow
Thanks for the input guys. Right now, I would like to experiment with a new kernel before going full-blown with a ROM...I will likely do that later down the road.
Now, while I was reading up on the various kernels and their offerings, another question popped into my head. Will flashing the phone with a new kernel purge pre-existing applications and settings? I will be backing up regardless, but I just thought I'd ask.
ohaiu said:
Thanks for the input guys. Right now, I would like to experiment with a new kernel before going full-blown with a ROM...I will likely do that later down the road.
Now, while I was reading up on the various kernels and their offerings, another question popped into my head. Will flashing the phone with a new kernel purge pre-existing applications and settings? I will be backing up regardless, but I just thought I'd ask.
Click to expand...
Click to collapse
no

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