[Q] Kernel Compatibility Question GB KK1 - Captivate Q&A, Help & Troubleshooting

I recently flashed my Captivate (I897) to stock leaked 2.3.5 I897UCKK1
I am trying to understand what my options are for rooting to regain wifi tethering capability. Unfortunately, I really don't understand the kernel interaction and the potential compatibility issues. Normally, I understand I just need to stay on a kernel that was sourced from the same version (in this case KK1).
Anyway, I am hoping for some information on what kernels might be OK to use with my current ROM. My wish list in a kernel at this point would be BLN, EXT4 Lagfix (Voodoo or new CWM) and Root. From reading, it sounds like there is a lot more support for KK4.. Maybe I need to move to a KK4 ROM as well?
Thank in advance for not flaming the noob (I hope)

Davensocal said:
I recently flashed my Captivate (I897) to stock leaked 2.3.5 I897UCKK1
I am trying to understand what my options are for rooting to regain wifi tethering capability. Unfortunately, I really don't understand the kernel interaction and the potential compatibility issues. Normally, I understand I just need to stay on a kernel that was sourced from the same version (in this case KK1).
Anyway, I am hoping for some information on what kernels might be OK to use with my current ROM. My wish list in a kernel at this point would be BLN, EXT4 Lagfix (Voodoo or new CWM) and Root. From reading, it sounds like there is a lot more support for KK4.. Maybe I need to move to a KK4 ROM as well?
Click to expand...
Click to collapse
I suspect you're right. KK4 does have a good following since it is the newest leak, and there are several KK4 based ROMs out there in active development that support lagfix.
You won't find BLN on any i897 ROMs, though. There's no source code from Samsung so there is no way for the devs to add it in. For that, you would need to use an i9000 ROM or a 2.2 i897 ROM.

Thank you!

Related

[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

[Q] Rogers Captivate Voodoo LagFix

Am I able to install the Voodoo lag fix on my Captivate? I know the AT&T version is supported but I rather not brick my device. Please respond!
Thanks,
Androidfann
I have a Rogers Captivate, and I have used Voodoo for a while.
Make sure you have root access, and go nuts. It really does improve the quality.
have u used voodoo with 2.2?
i just got the captivate and am now on stock 2.2 with root and oclf installed. is it worth changing to voodoo?
ssjkakarot said:
have u used voodoo with 2.2?
i just got the captivate and am now on stock 2.2 with root and oclf installed. is it worth changing to voodoo?
Click to expand...
Click to collapse
OCLF uses ext2, which is less safe than ext4, which is used by Voodoo. If you want Voodoo, flash the JJ4 + Voodoo kernel in the dev section.
ssjkakarot said:
have u used voodoo with 2.2?
i just got the captivate and am now on stock 2.2 with root and oclf installed. is it worth changing to voodoo?
Click to expand...
Click to collapse
Depends. The newer Kernals really unlock a lot of features that we didn't have before, and you don't have now.
If you use your phone as your media player, than the benefits of Voodoo sound were enough to make me switch.
hey guys, i got the official rogers 2.2, can i still use voodoo? what good roms use rogers 2.2 as a base and include voodoo? any suggestions?
Hey folks, another Canadian Rogers Captivate user here...just wanted to confirm if I can use the Voodoo stable 5.4.1 for Froyo 2.2.1 as it looks like I'm on 2.2 stock (and rooted)? I'm new to android and a bit scared, but the Voodoo fix seems easy enough..
No one seems to be answering the main question posed here.
For us STOCK Rogers froyo users which version of voodoo should we use?
I am not running a custom rom, I have not used Odin (used Kies to install official froyo update). I can't seem to find a version of voodoo lagfix specifically for stock Rogers 2.2. If anyone e has it installed can you point us in the right direction?
Sent from my SAMSUNG-SGH-I896 using XDA App
Flash the .tar version of this http://forum.xda-developers.com/showthread.php?t=893880
Using this version of ODIN http://dl.dropbox.com/u/20958367/Odin3 v1.3.exe
If you need further instruction to do so, PM me and I will walk you through it.
Thanks for the reply..i havent read much about speed mod. Am I to understand theres no voodoo option for rogers 2.2?
Sent from my SAMSUNG-SGH-I896 using XDA App
Hi there to all asking about Voodoo for Rogers,
I have tried suckerpunch (based on speedmod)
Also tried the newest speedmod 13c
No problems with either.
I personally have tried voodoo (5.4.1 and the one for att captivate) with no luck at all.
phrenicthenub said:
Thanks for the reply..i havent read much about speed mod. Am I to understand theres no voodoo option for rogers 2.2?
Sent from my SAMSUNG-SGH-I896 using XDA App
Click to expand...
Click to collapse
People have been using the SpeedMod kernel which is the Rolls Royce of kernels; it enables a lot of the Captivates features and power. However, the Kernel is based on the i9000 kernel, which is the sister handset to the Captivate. The kernels are compatible across both phones, but the stock modems on captivates don't seem to do as well with some setups; you'll see this in the sprawling thread dedicated to that topic. Some people will flash an i9000 modem as well, and people seem to have varying results with different combinations.
Having said that, if you don't want to use bluetooth, the stock modem is perfectly serviceable. You could go ahead and flash your SpeedMod kernel and see vast improvements is phone function without tweaking in the handset's general recovery menu. There's also plenty there to keep the tweaksters busy
However, new to the scene is the same developers amalgam of his voodoo lagfix in a stock Rogers Froyo kernel. I'm running it now and I am still testing and checking things, but it seems fine though. There are some caveats to respect though, I just spent nearly an entire day getting my phone back to Stock Froyo after doing a bad job of 'un'lagfixing before flashing kernels. However, if it's your first endeavour into flashing or modifying your phone's software, it would be a relatively safe bet. You should not have any lagfix installed nor should you even think about doing it without doing a Titanium Backup of your phone, which would mean rooting.
Hope that helps a bit.
Clemmei.. I saw in the description of your phone that has the official version of Gingerbread 2.3.3 AT&T Gingerbread in your captivate ... How did you install, by odin? I have a Captivate I897 UCKB1, i´m interested in this oficial Rom.. Works fine?? And what version i need to chose for my modems.. Thanks!!
lapiz1618 said:
Clemmei.. I saw in the description of your phone that has the official version of Gingerbread 2.3.3 AT&T Gingerbread in your captivate ... How did you install, by odin? I have a Captivate I897 UCKB1, i´m interested in this oficial Rom.. Works fine?? And what version i need to chose for my modems.. Thanks!!
Click to expand...
Click to collapse
There is a 1-click Gingerbread UCKF1 thread in the dev forum. Thats what I am currently running and its working well so far.. The only issue I have is my GPS is crap.. but it was crap with stock froyo aswell so no big deal there.
I'm on the rogers i896 also.
erbsmokah said:
There is a 1-click Gingerbread UCKF1 thread in the dev forum. Thats what I am currently running and its working well so far.. The only issue I have is my GPS is crap.. but it was crap with stock froyo aswell so no big deal there.
I'm on the rogers i896 also.
Click to expand...
Click to collapse
But this rom is official, created by the AT&T..?? Or not?? Thanks for your quick response..
lapiz1618 said:
But this rom is official, created by the AT&T..?? Or not?? Thanks for your quick response..
Click to expand...
Click to collapse
It's sort of officially unofficial. It would seem to be a prebuild for a forthcoming Gingerbread release, it's tight and a great daily driver.
I did use Odin; follow the usual safety procedures and all will be well. The modem that comes with the package is great, but my 4G no longer works, it's 3G for now, but I got terrible 4G speeds anyway, so there's not much of a downgrade there.
The GPS did not function so great straight away, but I keyed in the code *#3214789650# - Settings - SUPL Settings, and changed the server to supl.google.com and the server port to 7276. I got much better results from that configuration.
Hope that helps!
Thanks for the help of gps friend ... I have it installed and this great .. But you have some voovoo installed, can not find any on the net .. The voodoo 5.5.x served me just to change the start GTI9000, I do not like .. Thanks for your help..

[Q] modem/kernels/overclocking/odin3

i'm still relatively new to the whole rooting experience
about a month and a half ago i picked up a captivate..since then i have rooted..upgraded to 2.2..and flashed cognition v3.02 rom
everything works great..but now i'm interested in flashing a new kernel (still running stock captivate kernel) and overclocking to 1.2ghz to add a bit more speed
in my settings i can tell you this..baseband version is I896UXJL1, kernel version is 2.6.32.9
from what i've read your modem version matters when flashing new kernels
i also understand that odin is used to flash kernels and such..but i have no idea how to use the program and all i can find on google are methods to revert back to stock firmware
do i need to upgrade my modem?
what would be a stable kernel that allows overclocking that you would recommend?
how do i use odin to flash that kernel?
i don't really want to do anything without full knowledge so i can reduce the risk of bricking my phone
i would greatly appreciate any help and i fully support the amazing things you guys are doing with the android platform
club ridge said:
i'm still relatively new to the whole rooting experience
about a month and a half ago i picked up a captivate..since then i have rooted..upgraded to 2.2..and flashed cognition v3.02 rom
everything works great..but now i'm interested in flashing a new kernel (still running stock captivate kernel) and overclocking to 1.2ghz to add a bit more speed
in my settings i can tell you this..baseband version is I896UXJL1, kernel version is 2.6.32.9
from what i've read your modem version matters when flashing new kernels
i also understand that odin is used to flash kernels and such..but i have no idea how to use the program and all i can find on google are methods to revert back to stock firmware
do i need to upgrade my modem?
what would be a stable kernel that allows overclocking that you would recommend?
how do i use odin to flash that kernel?
i don't really want to do anything without full knowledge so i can reduce the risk of bricking my phone
i would greatly appreciate any help and i fully support the amazing things you guys are doing with the android platform
Click to expand...
Click to collapse
jl1 is your modem version right now. if everything works for you, why you want to change?
suckerpuch is a kernel allows oc and it has a CWM version to flash.
oc usually will shorten your battery for the daily usage.
The easiest why I found to flash kernal is to use SGS kernal flasher you find it on the market lets you flash different kernals from within android. Once you get a different kernal with cwm you cab just flash modems from within the recovery menu as long as the modem is in a cwm flashable file
SAMSUNG-SGH-I897 Serendipity [email protected] Suckerpunch #46

[Q] Kernel / Wolfson DAC: not sure what to do

I have installed COG 3.03 and find it great.
I want to unleash the power of the Wolfson DAC , and for that it seems I need a compatible kernel.When I installed the Voodoo App I got the message to do so.
Now I have search many, many, many threads, and I am MORE confused if anything; can someone point me towards the correct (and clear! 100 pages long threads make it very confusing to see what is the consensus) info for the following questions:
Which kernel should I choose?
How do I install it?
Do I HAVE to change my modem if I change the kernel?
Will the kernel swap have any incidence on future ROM choice I might do?
Will changing the kernel do anything to my reception (which is super great)?
Any help is appreciated; again, I tried understanding what to do by myself like a big boy, but I got to read so many threads in some many directions, that I can't make a clear choice....
Samsung Galaxy S
Firmware 2.2
Baseband I896UXJL1
Kernel 2.6.32.9
Cognition 3.03. Update 2​
Hmmm, isn't this what Supercurio is doing with his kernel drivers? Some kernels in here already have supercurio's code in, and you also need to use the app he made.
I think almost all recent kernels support it. If it says supports voodoo sound there you go. Try hardcores kernel.
Sent from my SAMSUNG-SGH-I897 using XDA App
Supercurio's audio thread has a link to all the kernels with Voodoo Sound. You can also just look for the phrase "Voodoo sound" in the short description.
Unfortunately, AFAIK every Voodoo sound kernel for Captivate is i9000/i9010-based, which means you'll have to switch modems (and lose bluetooth calls, unless you also switch to a different ROM) as well.
I'm sort of amazed no one put this and BLN into the native-Captivate Rogers Froyo source yet. DG said he had a test version of this combo *weeks* ago, but no release thread. And somehow no other kernel devs are interested...
Oh yeah, someone will kill this thread im sure cause it doesn't belong here. Should be in q and a.
Sent from my SAMSUNG-SGH-I897 using XDA App
Yeah, I see this thread being moved or locked soon.
I run Cognition 3.04 with hardcore's speedmod kernel, which has the Voodoo Sound 4 drivers in it. I use the T959D TLJL3 modem which gives me great reception and killer data speeds.
When you flash a new ROM, you'll probably be wiping and reinstalling everything anyway, so chances are you would have to flash whatever kernel/modem flavor you choose again anyway.
So:
Which kernel should I choose?
Any REORIENTED i9000 kernel with Voodoo Sound 4 will do.
How do I install it?
Most of them have the option to use either Odin or Clockworkmod Recovery. Since you're already using Cognition, make sure the Clockworkmod Recovery that you use has RED FONT. If you're installing the speedmod kernel it will be GREEN FONT thereafter.
Do I HAVE to change my modem if I change the kernel?
Since you're probably going to be flashing a reoriented i9000 kernel, i9000 modems will work best. I've had no problem running the JJ4 Captivate modem, but others have. Also, like I said above, the T959D TLJL3 modem is great.
Will the kernel swap have any incidence on future ROM choice I might do?
See above.
Will changing the kernel do anything to my reception (which is super great)?
This is certainly more affected by your modem than your kernel. I haven't seen kernels have any great effect on this.
HOWEVER, it's worth mentioning that i9000 kernels will chew up more battery than Captivate ones. Don't count on more than 20 hours of battery life... if you can even get that on a stock phone, LOL.
To flash a new kernal you can either use CWR or SGS kernal flasher from the market to install it. You do not have to change the modem when you change the kernal and when it comes to picking one that will work with voodoo you can usuall find that out in the original post.
Xaltotun said:
I have installed COG 3.03 and find it great.
I want to unleash the power of the Wolfson DAC , and for that it seems I need a compatible kernel.When I installed the Voodoo App I got the message to do so.
Now I have search many, many, many threads, and I am MORE confused if anything; can someone point me towards the correct (and clear! 100 pages long threads make it very confusing to see what is the consensus) info for the following questions:
Which kernel should I choose?
How do I install it?
Do I HAVE to change my modem if I change the kernel?
Will the kernel swap have any incidence on future ROM choice I might do?
Will changing the kernel do anything to my reception (which is super great)?
Any help is appreciated; again, I tried understanding what to do by myself like a big boy, but I got to read so many threads in some many directions, that I can't make a clear choice....
Samsung Galaxy S
Firmware 2.2
Baseband I896UXJL1
Kernel 2.6.32.9
Cognition 3.03. Update 2​
Click to expand...
Click to collapse
I am using cog 3.04 with the firebird 2 ver1 and jk4 modem to use voodoo control. I flash back to stock cog.3.04 kernel & modem when I want to use bluetooth. Speed mod kernel caused my phone issues. Seems to be trial and error with each phone, good luck with your set up

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

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