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

[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..

Need some clarification please

Hi there , I just need some info about some stuff about ROMs, kernels and modems.
I plan to flash the latest firefly ROM on my rogers Captivate (SGH-i896) and need a but of clearing up. Some question will be thrown your way
1- if I do flash the ROM, what and modem gets flashed with it? Or do I have to flash them separately?
2- whats the difference between speedmod and suckerpunch #59?
3-Is the lagfix included in the ROM or kernel (if it gets flashed with the ROM)?
4- what the heck is vodoo?
Thanks guys ....I did a lot of reading on different threads and somethings are worded differently and confuses me .

stephan001 said:
Hi there , I just need some info about some stuff about ROMs, kernels and modems.
I plan to flash the latest firefly ROM on my rogers Captivate (SGH-i896) and need a but of clearing up. Some question will be thrown your way
1- if I do flash the ROM, what and modem gets flashed with it? Or do I have to flash them separately?
2- whats the difference between speedmod and suckerpunch #59?
3-Is the lagfix included in the ROM or kernel (if it gets flashed with the ROM)?
4- what the heck is vodoo?
Thanks guys ....I did a lot of reading on different threads and somethings are worded differently and confuses me .
Click to expand...
Click to collapse
1. no
2. depends on what you like better
3. yes(usually)
4. a freaky spiritual thing cajuns do(lsu tiger fans and new orleans saints fans)
Sent from my SAMSUNG-SGH-I897 using XDA App

stephan001 said:
Hi there , I just need some info about some stuff about ROMs, kernels and modems.
I plan to flash the latest firefly ROM on my rogers Captivate (SGH-i896) and need a but of clearing up. Some question will be thrown your way
1- if I do flash the ROM, what and modem gets flashed with it? Or do I have to flash them separately?
2- whats the difference between speedmod and suckerpunch #59?
3-Is the lagfix included in the ROM or kernel (if it gets flashed with the ROM)?
4- what the heck is vodoo?
Thanks guys ....I did a lot of reading on different threads and somethings are worded differently and confuses me .
Click to expand...
Click to collapse
1. The ROM includes the modem so there's no need to flash one separately. And if I remember right, Firefly uses the JK4 Modem.
2. Suckerpunch includes the ability to overclock and/or undervolt which affects battery life and overall performance. I personally use speedmod because that's what was included with my ROM and I haven't decided to flash a new kernel.
3. Yes, the lagfix is included in the ROM and the kernel is (if I'm not mistaken) what controls the lagfix.
4. Voodoo is another set of custom tweaks and enhancements that improve a number of things including speed, audio, and video.
Hope that answers your question.

Jay1390 said:
1. The ROM includes the modem so there's no need to flash one separately. And if I remember right, Firefly uses the JK4 Modem.
2. Suckerpunch includes the ability to overclock and/or undervolt which affects battery life and overall performance. I personally use speedmod because that's what was included with my ROM and I haven't decided to flash a new kernel.
3. Yes, the lagfix is included in the ROM and the kernel is (if I'm not mistaken) what controls the lagfix.
4. Voodoo is another set of custom tweaks and enhancements that improve a number of things including speed, audio, and video.
Hope that answers your question.
Click to expand...
Click to collapse
Thank you, that really cleared up a lot

[Q] Any Kernel work on back camera

I have been using I9000 rom with speedmod kernel and 850 modem for i897 device for a long time.
I installed different kind of i9000's Captivate kernel. None of the i9000 kernel's Captivate work on Tango and Fring video chat. I always get black screen on Tango video chat and Fring always crash when video turn on.
I tested on i9000 rom with Cognition 4.3's kernel and I897UCKB1 modem. The video chat work, but this I897UCKB1 modem is horrible download and upload speed while using video chat. That's why I didn't like to use I897UCKB1 rom because the 3G speed limited by AT&T. If I use any i9000's modem with Cognition 4.3's kernel, the voice call will not work.
I think i9000 kernel for Captivate must disable or remove front face camera function in order to work on Tango or Fring video calling.
Anyone know how to fix this?

Captivates have no front facing camera.

That's why need to disable front face camera on the i9000 kernel's Captivate.
And Cognition 4.3's kernel able to use video calling, but not on any i9000 kernel's Captivate.

They gave a proximity sensor and a light censor on the front that is often mistaken for a camera. As for moderns and kernels, I would recommend reading the modem thread. It will put you on the right path.
Sent from a place my wife doesn't know about (yet)

mrhaley30705 said:
They gave a proximity sensor and a light censor on the front that is often mistaken for a camera. As for moderns and kernels, I would recommend reading the modem thread. It will put you on the right path.
Sent from a place my wife doesn't know about (yet)
Click to expand...
Click to collapse
I'm pretty sure the op knows there isn't a forward facing camera, what he is saying is that the video chat works on kb1 but not on i9000, like the i9000 kernel makes the app look for a forward facing camera and then it doesn't find it and crashes or shows a black screen due to no camera. He wants the kernel to have the app go to the rear camera like it should. Right?

I knew Captivate never have front face camera since I have this phone.
The only problem i9000 kernel still contain front face camera code.
The Cognition 4.3's kernel seen like wasn't or because it is base on Captivate rom.
Either modify or disable front face camera code inside i9000 kernel or use Cognition 4.3's kernel with hsupa enable modem.

studacris said:
I'm pretty sure the op knows there isn't a forward facing camera, what he is saying is that the video chat works on kb1 but not on i9000, like the i9000 kernel makes the app look for a forward facing camera and then it doesn't find it and crashes or shows a black screen due to no camera. He wants the kernel to have the app go to the rear camera like it should. Right?
Click to expand...
Click to collapse
That's what I want!

My apologies. I misunderstood.
Have you tried using the kb1 roms (cognition, fusion, torch ) with existz kb1 kernel? As far as modems, there are only 3 I think for kb1 roms (KB1,JJ4 AND JI6). If the modem doesn't match rom and kernel, weird things happen (no bluetooth, no call volume, static). I hope this helps a little, eden if it doesn't solve your problem.
Sent from a place my wife doesn't know about (yet)

mrhaley30705 said:
My apologies. I misunderstood.
Have you tried using the kb1 roms (cognition, fusion, torch ) with existz kb1 kernel? As far as modems, there are only 3 I think for kb1 roms (KB1,JJ4 AND JI6). If the modem doesn't match rom and kernel, weird things happen (no bluetooth, no call volume, static). I hope this helps a little, eden if it doesn't solve your problem.
Sent from a place my wife doesn't know about (yet)
Click to expand...
Click to collapse
All are Captivate modem (KB1, JJ4, and JI6) worked with KB1 rom except I don't have HSUPA speed which is I don't want to use AT&T modem.
i9000 rom + i9000 kernel for Captivate + i9000 modem: need to fix kernel only use back camera
i9000 rom + Captivate kernel + Captivate modem: everything work except no hsupa speed

im not sure if you will get what you want. it would require a lot of knowledge of the sources and mixing captivate and i9000 sources from a 2.2 kernel and a 2.2.1 kernel. not that it is nessessaily hard, it might be easy for an experienced dev. the devs dont really know till they try but im not sure they will mess around with it. most of the significant kernel work is being done on irc chat and in the i9000 forum, most of it is not i897 centric but latter ported to i897. it may tak a while to get something like this done and after the source for 2.3.3 is realeased im not sure that it will ever get done. problem is that noone requests it. i understand the need for hsupa in combination with video chat. without a 2 way connection hsupa is almost useless. many broadband isp's dont provide an equivilent to hsupa upload speeds. well right now atleast you need to choose between slow choppy video calls on hsdpa or no video calls at all on hspa making hspa fairly useless. what a conundrum
have you tried using a pure i9000 rom and not a captivate port? like strait out of the i9000 forum with a reorient kernel? because they may have something in the settings apk to swap the active camera for that.i dont know for sure though.
edit, forgot but you can triy the ursa minor kernel. it is the i9010 kernel but it is 2.2. there is also the i9088 2.2.1 kernels from kp2 and kp5 but it is hard to find and you might have to settle for a stock kernel in that case.

Dani897 said:
im not sure if you will get what you want. it would require a lot of knowledge of the sources and mixing captivate and i9000 sources from a 2.2 kernel and a 2.2.1 kernel. not that it is nessessaily hard, it might be easy for an experienced dev. the devs dont really know till they try but im not sure they will mess around with it. most of the significant kernel work is being done on irc chat and in the i9000 forum, most of it is not i897 centric but latter ported to i897. it may tak a while to get something like this done and after the source for 2.3.3 is realeased im not sure that it will ever get done. problem is that noone requests it. i understand the need for hsupa in combination with video chat. without a 2 way connection hsupa is almost useless. many broadband isp's dont provide an equivilent to hsupa upload speeds. well right now atleast you need to choose between slow choppy video calls on hsdpa or no video calls at all on hspa making hspa fairly useless. what a conundrum
have you tried using a pure i9000 rom and not a captivate port? like strait out of the i9000 forum with a reorient kernel? because they may have something in the settings apk to swap the active camera for that.i dont know for sure though.
edit, forgot but you can triy the ursa minor kernel. it is the i9010 kernel but it is 2.2. there is also the i9088 2.2.1 kernels from kp2 and kp5 but it is hard to find and you might have to settle for a stock kernel in that case.
Click to expand...
Click to collapse
I just tested GT-i9010 Armani (skullcap-voodoo #11) kernel with i9000 modem. The video back camera work and hsupa high speed work as well, but the wifi is not working with this kernel. It is confirmed this kernel is wifi issue.

lawbo said:
I just tested GT-i9010 Armani (skullcap-voodoo #11) kernel with i9000 modem. The video back camera work and hsupa high speed work as well, but the wifi is not working with this kernel. It is confirmed this kernel is wifi issue.
Click to expand...
Click to collapse
well try the andromeda rom or the ursa minor kernel from andromeda thread.
i really suggest trying andromeda if you are gonna use a 2.2 kernel. not much sense in 2.2.1 without the kernel. andromeda has some fantastic battery life for most users and alot more, i suggest changing the modem though jk4 doesn't work well for me or many other captivate users. calls suck. kp1 and kc1 are two that i can verify work well.
there may also be a kp5 dump around here somewhere with the kernel but you wont have voodoo anything. still you get a 2.2.1 kernel for the captivate with hsupa
edit: http://forum.xda-developers.com/attachment.php?attachmentid=531565&d=1299080836
this should contain a kp5 kernel with voodoo injected in. it was the origonal kernel used in dragon. dont think it has voodoo sound just lagfix
edit edit: http://forum.xda-developers.com/attachment.php?attachmentid=558036&d=1301688592 this is the ursa minor kernel for andromeda built from i9010
sources. as far as 2.2 kernels for captivate go this is the one to have! 2.2.1 may benchmark a bit better but this is a seriously fast kernel with hsupa support. use kc1 modem you will be happy.
Edit 3: I use glitterballs' kernel v.5. It is a pain in the arse but it is jpx/y 2.2.1 like the other i9000 kernels and is working for me on fring with dragon rom. I just downloaded fringe and did a test call. I can see the image from my rear camera in the lower corner. Glitterbslls really knows what he is doing. He needs to come back to the board. If you use this kernel disable all lagfix first and convert to ext4 after to include the /system partition. Also flash with neldars app. You will have problems flashing in recovery because of steam. You can also extract the zimage and .tar it for odin flashing.

Dani897 said:
well try the andromeda rom or the ursa minor kernel from andromeda thread.
i really suggest trying andromeda if you are gonna use a 2.2 kernel. not much sense in 2.2.1 without the kernel. andromeda has some fantastic battery life for most users and alot more, i suggest changing the modem though jk4 doesn't work well for me or many other captivate users. calls suck. kp1 and kc1 are two that i can verify work well.
there may also be a kp5 dump around here somewhere with the kernel but you wont have voodoo anything. still you get a 2.2.1 kernel for the captivate with hsupa
edit: http://forum.xda-developers.com/attachment.php?attachmentid=531565&d=1299080836
this should contain a kp5 kernel with voodoo injected in. it was the origonal kernel used in dragon. dont think it has voodoo sound just lagfix
edit edit: http://forum.xda-developers.com/attachment.php?attachmentid=558036&d=1301688592 this is the ursa minor kernel for andromeda built from i9010
sources. as far as 2.2 kernels for captivate go this is the one to have! 2.2.1 may benchmark a bit better but this is a seriously fast kernel with hsupa support. use kc1 modem you will be happy.
Edit 3: I use glitterballs' kernel v.5. It is a pain in the arse but it is jpx/y 2.2.1 like the other i9000 kernels and is working for me on fring with dragon rom. I just downloaded fringe and did a test call. I can see the image from my rear camera in the lower corner. Glitterbslls really knows what he is doing. He needs to come back to the board. If you use this kernel disable all lagfix first and convert to ext4 after to include the /system partition. Also flash with neldars app. You will have problems flashing in recovery because of steam. You can also extract the zimage and .tar it for odin flashing.
Click to expand...
Click to collapse
I just installed Andromeda 3 rom. The video back camera, hsupa, dial call, and wifi are work great so far. Hopefully, this rom doesn't have any major problems.

lawbo said:
I just installed Andromeda 3 rom. The video back camera, hsupa, dial call, and wifi are work great so far. Hopefully, this rom doesn't have any major problems.
Click to expand...
Click to collapse
we spent a long time on that rom. it started its inception in December and made its debut on XDA in January.....you will be hard pressed to find any REAL issues

if there is a rom to flash and use long term andromeda is it. i had andromeda 1.something for almost 2 months i didn't change the kernel or overclock it and i didn't even have the stock rom for that long. but switched because i was curious about the roms from the i9088. would go back but dragon keeps getting better and i want to see what dagr8 produces for the final release, he was a dev on andromeda. i think the whole andromeda team komin dev group does top notch work.

[Q] Kernel Compatibility Question GB KK1

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!