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How do I get my samsung galaxy s I9000 back to stock kernel?

How do I get my samsung galaxy s 9000 back to stock kernel and android 2.2 with kies update?
i have now this speedmod and voodoo lagfix innstalled
I really needs to know this

you need to first undo voodoo (visit voodoo website FAQ for instructions) and then flash back to a stock Froyo release of your choice

AllGamer said:
you need to first undo voodoo (visit voodoo website FAQ for instructions) and then flash back to a stock Froyo release of your choice
Click to expand...
Click to collapse
Yes but where do I find stock Froyo release?

Samfirmwares .
http://www.samfirmware.com/disclaimer.htm
jje

I was trying to use voodoo to use the new auxra froyo rom but didnt work like the oclf did now volume buttons work bavkwards and cant hear sound when youtube or internet or movies .which im using a samsung vibrant.can you help im stuck.plz really need ur help

Its not good idea to flash sgs by stock firmware. Use last froyo from samfirmwares. You can flash your phone sevral times using various firmwares until you'll get it working.

i just flashed my kernel to CF-Root... now i got bootloop evrytime i open wifi connection.
i am forced to factory reset in CWM 3.
what i want now is to restore my previous kernel which is the stock kernel for Gingerbread 2.3.3 DXJV9.
please help me how to flashed back to stock kernel.

Going back to stock JL2

I flashed my Bell i9000m with the Speedmod rom, and it is running great. However is it possible to revert back to the stock kernel for upgrades via Kies?
Another stupid question, can Darky's rom be flashed via Odin on top of Speedmod?

Biffin said:
I flashed my Bell i9000m with the Speedmod rom, and it is running great. However is it possible to revert back to the stock kernel for upgrades via Kies?
Another stupid question, can Darky's rom be flashed via Odin on top of Speedmod?
Click to expand...
Click to collapse
You can flash the stock JL2 kernel on top of the speed mod yes. If you want to keep the speedmod and are only interested in being able to upgrade, you could use the kies registry hack and trick kies into thinking your phone is at an older model, this includes the kernel, however i'm not sure what will happen because some of these roms only have some of the data needed in the flash, example is that the stock 2.1 has a sddata folder and non of the roms after that have that folder.....
Darky's rom is meant to be flashed with clock work recovery, so if you want to flash it just follow his instructions. it comes in a zip file so it can only be flashed via clockwork. Do not unzip because it's signed

Great, thank you. Gonna flash to Darky's rom after creating a nanodroid backup

[Q] Is disabling lagfix a must before flashing ROMs?

Hi,
Currently I am running XFJP9(froyo 2.2) with supercurio's voodoo kernel with lagfix (Voodoo_stable 5.5 & ClockworkMod v2.5.1.3). Now i am planning to flash my ROM to XXJVK (2.3.3).
Now here's the question, do i need to disable the lagfix (covert back to RFS filesystem) before flashing? if its a must then please provide a link describing how to do it.
Thanks in advance.

Disabling the lagfix before changing versions is ABSOLUTELY essential. The only time you can get away with NOT disabling lagfixing when flashing ROMs is when you are going to be using the same kernel or a different version of the same kernel in the new ROM. In this case (Froyo to Gingerbread) I would disable it no matter what.
With Supercurio's kernel I believe you need to go into Recovery and select Disable System Conversion and then reboot, but I have never used that kernel so I am unsure. Perhaps you could ask in the thread for that kernel down in Android Development.

Thanks for quick reply.
Only disabling the lagfix, i mean converting back to RFS file system will work or I need to flash back to the stock kernel before flashing to JVK ROM?
Sent from my GT-I9000 using XDA App

Disable the lagfix, no need to flash back to your old stock, then follow the directions for the ROM...most require you to flash the new stock JVK ROM in order to install the bootloader, then flash whatever new JVK rom you wish as the dev suggests.
Just follow their instructions and you should be fine.

[Q] JVB+Bootloaders -> JS8 Rom

Hi there,
I've got a quick question about the compatibility of JVB bootloaders, with Froyo roms.
I've flashed stock JVB+bootloaders, flashed Chainfire's kernel, then installed Faryaab's F1 rom.
However, i'm considering flashing back to Darky's JS8 rom.
Which steps do i need to take?
Something like the following, perhaps:
First put Darky's rom on my internal SD card
Flash Hardcore's Froyo kernel through ODIN
Don't let the phone reboot, pull battery
Enter recovery, flash Darky's rom?
Am i missing a few steps, perhaps?
Thanks in advance.

I would also appreciate it if some one could answer OP's question. I'm not finding GB as stable as I hoped.

The new bootloaders are compatible with froyo and even eclair thus you dont have to flash the old ones. nevertheless i would recommend to do a clean install which means you should flash any stock froyo Firmware with repartition first and then flash any Kernel with cwm in order to flash the rom you want
Sent from my GT-I9000 using XDA Premium App

Cheers, that's the answer i was hoping for .
Considering the modem, my guess is that it shouldn't be an issue to leave the JVK modem intact?

jlbloem said:
Cheers, that's the answer i was hoping for .
Considering the modem, my guess is that it shouldn't be an issue to leave the JVK modem intact?
Click to expand...
Click to collapse
no it shouldnt. but if you flash a custom rom afterwards it will be changed anyway

JVK is a good modem .
jje

Upgrade help from Froyo!

Hi
I just tried upgrading via Kies from my current old config, but it advised that my phone couldnt be upgraded... The current set-up is (as per Kies):
PDA: JPO
Phone: JPP
CSC: JPO (VOD)
From Settings, it says:
Firmware: 2.2
Baseband version: I9000XXJPP
Kernel: 2.6.32.9 [email protected] #14
Build: FROYO.XXJPO
I want to upgrade to the latest best featured stable software, custom or stock, that provides good battery life and best features. I'm not averse to custom kernels as I understand they provide cool additional features such as BLN and optimised audio etc. What would be the best latest ROM/Kernal set-up to provide what I need?
I originally flashed the above via Odin, so I'm comfortable doing that. With respect to the Speedmod lagfix I have installed, do I need to disable that? I can see a disable option to disable in CWM.
Is there a simple step by step that I can follow to get the latest software on without screwing up my phone! I've backed up some apps using Titanium Backup and have my SMS /contacts backed up to SD, so I'm ready to rock and roll...
Thanks in advance

S4chin said:
Hi
I just tried upgrading via Kies from my current old config, but it advised that my phone couldnt be upgraded... The current set-up is (as per Kies):
PDA: JPO
Phone: JPP
CSC: JPO (VOD)
From Settings, it says:
Firmware: 2.2
Baseband version: I9000XXJPP
Kernel: 2.6.32.9 [email protected] #14
Build: FROYO.XXJPO
I want to upgrade to the latest best featured stable software, custom or stock, that provides good battery life and best features. I'm not averse to custom kernels as I understand they provide cool additional features such as BLN and optimised audio etc. What would be the best latest ROM/Kernal set-up to provide what I need?
I originally flashed the above via Odin, so I'm comfortable doing that. With respect to the Speedmod lagfix I have installed, do I need to disable that? I can see a disable option to disable in CWM.
Is there a simple step by step that I can follow to get the latest software on without screwing up my phone! I've backed up some apps using Titanium Backup and have my SMS /contacts backed up to SD, so I'm ready to rock and roll...
Thanks in advance
Click to expand...
Click to collapse
Most devs include the steps you should take to install their rom on their relative threads. i would recommend Darky's rom or Milky if you want something very stable and with up to date software.
i doubt you'll have any trouble installing them.
Good luck!
by the way, you should disable any lagfixes before installing a new rom, or use the kernel cleaning tool.

Have you tried the stock firmwares from Samfirmware.com?...
Sent from my MB860 using xda premium

It's usually better to disable lagfix before flashing a new rom. You should first ensure that you're on a stock rom. If you're not, flash the odexed JPO rom to go back to stock. From there, you'd want to upgrade to a gingerbread rom. Download a gingerbread rom that has bootloaders and flash via odin. After that, you can easily flash newer roms like JVR, JVS or JVT. JVS and JVT are newer (2.3.5) but have more bugs than JVR (2.3.4).

disclaimernotice said:
It's usually better to disable lagfix before flashing a new rom. You should first ensure that you're on a stock rom. If you're not, flash the odexed JPO rom to go back to stock. From there, you'd want to upgrade to a gingerbread rom. Download a gingerbread rom that has bootloaders and flash via odin. After that, you can easily flash newer roms like JVR, JVS or JVT. JVS and JVT are newer (2.3.5) but have more bugs than JVR (2.3.4).
Click to expand...
Click to collapse
Hi
Thanks for your note. Can you clarify the process for me (I'm not great at doing this stuff!)... I think I quite like the sound of Milky's ROM/Kernal. So following your advice above...
1. Enter CWM and disable the lagfix
2. Download and flash odexed JPO. I still have the JPO file that I put on my phone via Odin (named: JPO_JPO_U_JPP - about 280mb in size). Is this the right file? If so, how do I flash it? (am guessing via Odin but in which section (PIT/PDA/PHONE/CSC) and what do I put in the rest?)
3. Download Milky's (assuming I want Milky's ROM and Kernal etc)
4. Install via Odin
5. Restore all apps etc
6.
If you can help clarify my (mis)understandings and add in any steps I have missed, it would be really helpful.
Thanks

S4chin said:
Hi
Thanks for your note. Can you clarify the process for me (I'm not great at doing this stuff!)... I think I quite like the sound of Milky's ROM/Kernal. So following your advice above...
1. Enter CWM and disable the lagfix
2. Download and flash odexed JPO. I still have the JPO file that I put on my phone via Odin (named: JPO_JPO_U_JPP - about 280mb in size). Is this the right file? If so, how do I flash it? (am guessing via Odin but in which section (PIT/PDA/PHONE/CSC) and what do I put in the rest?)
3. Download Milky's (assuming I want Milky's ROM and Kernal etc)
4. Install via Odin
5. Restore all apps etc
6.
If you can help clarify my (mis)understandings and add in any steps I have missed, it would be really helpful.
Thanks
Click to expand...
Click to collapse
2) I don't know if that's the stock one, but you can find the stock JPO from here: http://forum.xda-developers.com/showthread.php?t=846913
3) Since Milky is based on JVR, it would be safer to flash the stock JVR rom with bootloaders via odin first, before you flash milky's rom. You can find the stock JVR here:http://forum.xda-developers.com/showthread.php?t=1195335
Then, flash Milky's rom, but check to make sure there are no other special instructions for that rom.
All the other steps seem to be fine. So, basically, you flash 3 times. First time is to go back to stock JPO, second time to go to stock JVR and third time to go to modified JVR, which is Milky's rom.

Thanks all for your advice.
I took the plunge yesterday and installed Milky's without installing the stock ROM's (not the right thing to do I know!). I did disable the lagfix and reset the ROM to stock within CWM.
Anyway, luckily it all went really well (following Milky's detailed instructions with the package) and I was on the new software quickly.
The phone is set up nicely now, so I'm pleased it went so smoothly.
One question - I understand I can fiddle around with the voltage and processor speed. Is there an optimum level to maximise battery life without performance suffering?
Thanks again!

S4chin said:
Thanks all for your advice.
I took the plunge yesterday and installed Milky's without installing the stock ROM's (not the right thing to do I know!). I did disable the lagfix and reset the ROM to stock within CWM.
Anyway, luckily it all went really well (following Milky's detailed instructions with the package) and I was on the new software quickly.
The phone is set up nicely now, so I'm pleased it went so smoothly.
One question - I understand I can fiddle around with the voltage and processor speed. Is there an optimum level to maximise battery life without performance suffering?
Thanks again!
Click to expand...
Click to collapse
If you want to overclock, it's pretty safe to use apps like Tegrak Overclock to go to 1200MHz. The extra 200MHz will not really affect battery life. Also, you could check this thread out: http://forum.xda-developers.com/showthread.php?t=1250442