Database Develop

[Q] Replace Kernel in Cognition v2.3b8?

Hi Guys,
I just got my Captivate couple days ago. I were able to unlock, root, get a new ROM (Cognition v2.3b8) and install some apps. I'm looking to get a new kernel for the ROM. How would I go about flashing it to a different Kernel like SpeedMod K12I ? Thanks.

Sgs kernel flasher app in market
To be safe always disable lagfix prior. App is very easy to user and quick
Sent from me

adrian18w said:
Hi Guys,
I just got my Captivate couple days ago. I were able to unlock, root, get a new ROM (Cognition v2.3b8) and install some apps. I'm looking to get a new kernel for the ROM. How would I go about flashing it to a different Kernel like SpeedMod K12I ? Thanks.
Click to expand...
Click to collapse
I am a noob here. But I am wondering what are/is the benefits/risk of replacing the kernel that comes with Cog v2.3b8 with another. I recently flashed Cog v2.3b8 from stock (batch 1006), and find this is pretty much as stable as stock. Only issue is with GPS (which was hit and miss on stock). So do the benefits of replacing the kernel in Cog v2.3b8 outweigh the risks?
Thankshttp://media.xda-developers.com/images/icons/icon7.gif

Well kernels have different features and abilities in them. It depends what you want from your kernel. Some might support BLN while others will have OC/UC or just OC. Various combinations of options. You just need to make sure that the kernel/ROM/modem are from the same family, etc. I9000 or Captivate. If you flash a i9000 kernel into a Captivate ROM you might have issues.
Cog v2.3b8 is a Captivate ROM I believe. You can flash Kernels which are for it.

cog runs fine with an i9000 kernel so long as you also use an i9000 modem. i can't run the i9000 roms because of service drops but this set-up is still very good.

Kernel flash
adrian18w said:
Hi Guys,
I just got my Captivate couple days ago. I were able to unlock, root, get a new ROM (Cognition v2.3b8) and install some apps. I'm looking to get a new kernel for the ROM. How would I go about flashing it to a different Kernel like SpeedMod K12I ? Thanks.
Click to expand...
Click to collapse
If you want to install a new kernel over the existing kernel,
1. Download the Kernel from http://forum.xda-developers.com/showthread.php?t=893880
2. Go to CWM recovery. (directly or through ROM Manager)
3. Choose the zip from SD
4. Flash and Reboot.
Make sure that there is atleast one boot after the ROM is installed.
To confirm,
check Kernel Version in Settings-> About Phone
You should see something like
[email protected]#116

Kernel benefits/risks
jperiod said:
I am a noob here. But I am wondering what are/is the benefits/risk of replacing the kernel that comes with Cog v2.3b8 with another. I recently flashed Cog v2.3b8 from stock (batch 1006), and find this is pretty much as stable as stock. Only issue is with GPS (which was hit and miss on stock). So do the benefits of replacing the kernel in Cog v2.3b8 outweigh the risks?
Thankshttp://media.xda-developers.com/images/icons/icon7.gif
Click to expand...
Click to collapse
Well each kernel has it's own benefits.
For instance, Speedmod uses sztupy's Universal Lagfix unlike other Kernels that use Vodoo Lagfix.
The main differences would be in the speed and battery. Samsung uses 250hz (as default), firebird kernel uses 300Hz and Speedmod uses 500Hz. Doesn't change battery consumption much but provides more smoothness.
Then the RAM Available. It varies from Kernel to Kernel from 300-350MB.
Cappy Kernels are for Captivate Only because of reorientation fixes and button mapping.
Hope this helps

SpeedMod Kernel with Gingerbread

Hi Guys
I am upgrading to a SGS i9000. Previously had a Motorola Milestone, custom kernel is new to me.
I've been searching and couldn't find anything. I want to load gingerbread XXJVK and use SpeedMod Kernel. Will this cause any problems? If I do experience problems would it be straight forward to go back to stock kernel?

davekojo said:
Hi Guys
I am upgrading to a SGS i9000. Previously had a Motorola Milestone, custom kernel is new to me.
I've been searching and couldn't find anything. I want to load gingerbread XXJVK and use SpeedMod Kernel. Will this cause any problems? If I do experience problems would it be straight forward to go back to stock kernel?
Click to expand...
Click to collapse
Speedmod is a kernel designed to run with Froyo, not Gingerbread. Many custom 2.3.3 ROMs have you install Speedmod as an intermediary step just to get CWM installed, but it will not work with JVK. You will need to install one of the kernels specifically designed to support JVK.
I STRONGLY suggest you read the many threads posted here about JVK and the process of flashing to it, AFTER you have read the stickies about flashing ROMs on the i9000. Foreknowledge is always better than Support Calls.

rschenck said:
Speedmod is a kernel designed to run with Froyo, not Gingerbread. Many custom 2.3.3 ROMs have you install Speedmod as an intermediary step just to get CWM installed, but it will not work with JVK. You will need to install one of the kernels specifically designed to support JVK.
I STRONGLY suggest you read the many threads posted here about JVK and the process of flashing to it, AFTER you have read the stickies about flashing ROMs on the i9000. Foreknowledge is always better than Support Calls.
Click to expand...
Click to collapse
Thanks for the advice. I keep going back to the stickies about flashing ROMs to i9000. I guess I will keep reading.

I would wait for the release of Gingerbread . Once its released the devs are going to have a more complete set up to work with .
jje

There's no source to work from... so there's no speedmod as of now. Your best shot could be supercurio's hacked JVK kernel which can convert partitions to ext4. But remember, the rom is still a beta.

My SGS came today. I'm going to look at flashing darky's rom tonight.
I have Cyanogenmod7 RC3 on my milestone at the moment but I don't think I'll miss the 2.3 features.
Again thanks everyone for the advice

hi guys,
i'm a noob.
need some help over here.
i'm using galaxy S i9000.
i rooted my device with speedmod kernel k13e-500hz #36 but firmware is v2.2.
is theer anyway to upgarde to v2.3 with rooted kernel??
many thanks

[Q] Froyo Kernel on Gingerbread?

Hi, I've been searching about the problem of Wifi with 2.3.4 (http://forum.xda-developers.com/showthread.php?t=1118589). So i figured out that the problem could be related with Gingerbread's Kernel, So I wondering if I can flash Froyo's Kernel on Gingerbread.
Thanks

As far as I know no but if you want you could give it a try but here is another kernel that will work for gingerbread http://forum.xda-developers.com/showpost.php?p=14252293&postcount=28

[Q] Rooting and Installing ROM on GT I9000

Hi,
I finally got a Samsung Galaxy S after finding a great a deal on it. I'm aware that there are several ways on how to root this device. However, due to that I don't know which to use.
Currently I'm running on 2.2.1 Froyo XXJPY with Kernel Version of [email protected] #1.
I'm not totally clueless about rooting as I've done it already on my HTC Wildfire.
Could someone please advise me which is the most up-to-date and safest method of rooting? Link would be greatly appreciated.
Also, I'm a bit confused about installing ROMs. I used to use CWM on my HTC Wildfire which was incredebly easy to do. Would it be the same on my Galaxy S?
I'm planning to test out MIUI, DarkysROM and such ROMs. Would these ROMs have the LAGFIX feature integrated in them as well?
I apologise if a thread like this has already been posted a thousand times but I just can't come up with a definite answer.
Thanks in advance.

I have a galaxy s Vibrant the I9000M and I rooted and unlocked mine today using SuperOneCick and then The Galaxy s unlock by helroz on the app market took a grand total of 6 minutes

Thank you! Now, that's one down.
Now just want to know about flashing ROMs e.g. MIUI, DarkyROM and such.
Do I need to root my SGS first to be able to flash custom ROMs?
I also noticed that you would also have to flash firwares and kernels. Do I need to this before flashing custom ROMs?
Thanks in advance.

In order to flash a custom rom you need to have clockworkmod (CWM) recovery.
and from that its easy
As for the newer rom's here, they are all 2.3.x, so in order to get from 2.2.1 JPY, you will need to flash a stock rom 2.3.x with bootloaders via Odin.
use this link to read about odin and flashing with it. its a great guide
http://forum.xda-developers.com/showthread.php?t=723596
to find stock rom's - they are in the general section. and custom rom's in the dev section.
read a little and after that have fun!!
And keep in mind every rom has its little guide, read those before you flash any.

Hi,
Many thanks for replying. Can I follow the video below made by a fellow XDA member direct from 2.2.1 to 2.3.4 via Odin?
http://www.youtube.com/watch?v=6lO3Y86N2p0&feature=BFa&list=FLqhM0qK4aVsLmWAA_YYhBCA&lf=mh_lolz
So I will Download stock JVQ from Samfirmware > Download Odin > Flash a stock 2.3.4 JVQ > Install chosen Kernel with CWM > Flash chosen ROM using CWM.
When would I need root then?
Is that right?
This reminds me when I had my Samsung Tocco. Pretty much same procedures.

Code Geass said:
Hi,
Many thanks for replying. Can I follow the video below made by a fellow XDA member direct from 2.2.1 to 2.3.4 via Odin?
http://www.youtube.com/watch?v=6lO3Y86N2p0&feature=BFa&list=FLqhM0qK4aVsLmWAA_YYhBCA&lf=mh_lolz
So I will Download stock JVQ from Samfirmware > Download Odin > Flash a stock 2.3.4 JVQ > Install chosen Kernel with CWM > Flash chosen ROM using CWM.
When would I need root then?
Is that right?
This reminds me when I had my Samsung Tocco. Pretty much same procedures.
Click to expand...
Click to collapse
That is right... basically when you flash a kernel with CWM you get root access. it's one of the features of a custom kernel. some of them activate it on there own and in some you need to activate it your self from the recovery (very simple).
And all the custom rom's come with root access, so in following the steps you wrote, you will get the root access with the custom kernel, and again in the custom rom.

Thanks for everyone's help. I'm now running Armetris 3.6.1 with Semaphore Kernel.
Just a question though, with my phone rooted, lagfix enabled, flashed with custom ROM and such, can I just simply go back to stock ROM? e.g. JVQ/JVR using Odin without any problems?

It is suggested to disable lagfix before changing rom's and kernel's
I know some how would say it is not a must when you use odin, but i always disable it before doing changes. I like to keep it safe.

sorry for this nooob question....
new to the samsung gt i9000, do i need to create a gold card before i do anything else????
sorry to be a bit thick but im used to htc

Hi,
Thanks for the reply. I'm currently running on Semaphore Kernel but I can't find any Lag Fix option on my phone? There isn't any on CWM Recovery as well.
I thought when you use EXT4 and convert it, Lag Fix would show up but I found nothing, so I just converted back to RFS.
So, I'm fine to directly go back to 2.3.4 JVQ even even I have a custom Kernel and custom ROM?
Thanks in advance!

Code Geass said:
Hi,
Thanks for the reply. I'm currently running on Semaphore Kernel but I can't find any Lag Fix option on my phone? There isn't any on CWM Recovery as well.
I thought when you use EXT4 and convert it, Lag Fix would show up but I found nothing, so I just converted back to RFS.
So, I'm fine to directly go back to 2.3.4 JVQ even even I have a custom Kernel and custom ROM?
Thanks in advance!
Click to expand...
Click to collapse
If you used the EXT4 app and converted to RFS then you have disabled the lagfix.
The lagfix changes the filesystem from RFS to EXT4. so when you converted to RFS yoh disabled it.
So,yes you are good to go.
---------- Post added at 02:57 PM ---------- Previous post was at 02:55 PM ----------
pat da punk said:
sorry for this nooob question....
new to the samsung gt i9000, do i need to create a gold card before i do anything else????
sorry to be a bit thick but im used to htc
Click to expand...
Click to collapse
Gold card?? what??

Also, If I were to flash a JVS Based ROM do I need to be on stock JVS and a JVS Kernel to flash it?
Once on I'm on JVS custom ROM can I just go back again to JVQ stock (Older firmware) without problems?
Really appreciate all your help Bork84!

Basically using odin you can change to JVS and JVQ no problem.
As far as custom rom, from what I know it does not matter on which 2.3.x you are, thay all have the same bootloders. so technically you dont need to be on stock JVS to flash a JVS custom rom.
but I am not an expert on that.
from my experience, i flashed to a JVR (2.3.4) custom rom via CWM from a 2.3.3 stock rom, and didn't had any problems.
So i cant give you a 100% answer

Give me some advice - Which kernel should I use for my daily drivers? X-Post

Hello XDA,
I recently acquired a Samsung Telus T959D Fascinate and have anxiously waiting for a ICS release.
In order to use ]teamhacksung's ICS Port for Galaxy S (BUILD 9) for my fascinate, I used >>This Thread<< to flash a i9000 kernel to use the ROM.
Now I am confused a bit. I've done some research on XDA and google, but for some reason can't get a straight answer on what to do in order to flash back a regular Samsung Fascinate ROM, such as CM7.1. I want to flash back, but I don't know which kernel to use because I am currently using the i9000 kernel.
I could flash one by Glitch and try CM7.1 from there, but I'm not sure what the voodoo lagfix option is and why it would brick my phone.
If any of you could recommend a kernel to flash to use regular Fascinate ROMs, and a kernel to use for i9000 ROMs, it would be greatly appreciated

I would reccomend Lords kernel v 9.3 BFS. If you like I can send you the download.