Database Develop

[Q] How to undo froyo 2.2 upgrade

Hi everyone,
I have upgraded my Samsung Galaxy S GT-I9000 from Eclair 2.1 to Froyo 2.2 via Samsung Kies. I have used Ryan's Z4root to root it which was success. Everything was fine until here. When I tried to fix the lag using the update.zip, it failed saying 'file verification failed' (somthing of this sort). I chekced on different forums and found that there isn't any update.zip file to fix lag on 2.2 (am I right?).
If there is one, could someone point me in that direction. If there isn't, how can I undo 2.2 and rollback to 2.1 so that I can root it and fix the lag.
Please ask if you need any further details regarding my phone or the process I used to root and fix the lag.
Thanks in advance.

Superoneclick worked for me on 2.2 and 2.2.1 if you just need to root the phone.

_dsk_ said:
Superoneclick worked for me on 2.2 and 2.2.1 if you just need to root the phone.
Click to expand...
Click to collapse
Thanks for your reply but I have already rooted my 2.2. What I am looking is for a lag fix solution on my 2.2 or rolling back to 2.1 where there are loads of easy lag fix solutions.

head over to the android dev subforum, look for any of the lagfix kernels.
Alternatively use cf-root which will allow you to use 2e recovery and thereby apply your update.zip

Do you know which 2.2 firmware you flashed? Was it jk3 or jk4? This sounds like a recovery version issue and not all solutions support every version of firmware.

Ryan's Z4root to root
+ Ryans OCLF for lag fix works for me .
jje

Any lagfix that can be installed as an app should be ok. You'll still be prevented from applying anything via the update.zip method until you resolve the recovery "issue".

gtg2 said:
Do you know which 2.2 firmware you flashed? Was it jk3 or jk4? This sounds like a recovery version issue and not all solutions support every version of firmware.
Click to expand...
Click to collapse
My current 2.2 firmware is JP3. This is what is showing after I updated to 2.2 via Kies.

JJEgan said:
Ryan's Z4root to root
+ Ryans OCLF for lag fix works for me .
jje
Click to expand...
Click to collapse
Yes!!!
Ryan's Root and OCLF worked for me aswell.
Rooting worked fine on the first go but lag fix resulted in a black screen on my galaxy. As I had an external SD card in my phone, I removed it out and ran the lag fix again. It worked this time!!!

[Q] Do you need Root access to flash a kernal?

Do you need Root access to flash a kernal?

mull54 said:
Do you need Root access to flash a kernal?
Click to expand...
Click to collapse
no not really although there are many benefits of rooting,
if you are flashing a kernal you seem to be in to the whole modding thing, why dont u root aswell ?

I had root before i Flashed the 2.2.1 JPY. And the Hardcore's kernal contains root i think.

mull54 said:
I had root before i Flashed the 2.2.1 JPY. And the Hardcore's kernal contains root i think.
Click to expand...
Click to collapse
yes i have that kernal too, it roots in about 1 second, option to unroot as well. i like that kernal battery consumption is great, and speed is exceptional ( my opinion) i say go for it !!!!

[Q] root XWJV1

Hi at all,
i have just flashed JPV1, and seem the superoneclick (1.7) cannot root the phone .....i have both tryed 'psneuter' and 'rageagainstthecage' method always blocked at "running psneuter/rageagainstthecage".
Could you help me ?

use cf root
http://forum.xda-developers.com/showthread.php?t=788108

Will CF root work on Gingerbread?

msolus said:
Will CF root work on Gingerbread?
Click to expand...
Click to collapse
Yep it does.

hi I successfully rooted XWJV1 using CF root and odin and I realize I doesn't revert 3e recovery to 2e... so my question is how do I apply a "lagfix"?
voodoo cannot be installed via update.zip (unsigned) and I'm not sure what are the effects of flashing the voodoo 3.0 odin package.. does it overwrite the CF root? conflict with it ..? anyone tried this?
thanks!

Have you read the informations in the JVE thread? in the first post?^^
I'm pretty certain there's even a link to the thread you're looking for.
here's the post that is quoted in mentioned first post

theduckking said:
Have you read the informations in the JVE thread? in the first post?^^
I'm pretty certain there's even a link to the thread you're looking for.
here's the post that is quoted in said first post
Click to expand...
Click to collapse
hi, thanks for that, a bit new to forums so a 50+ page thread is a little overwhelming
i will read through it cheers.

bys299 said:
hi I successfully rooted XWJV1 using CF root and odin and I realize I doesn't revert 3e recovery to 2e... so my question is how do I apply a "lagfix"?
voodoo cannot be installed via update.zip (unsigned) and I'm not sure what are the effects of flashing the voodoo 3.0 odin package.. does it overwrite the CF root? conflict with it ..? anyone tried this?
thanks!
Click to expand...
Click to collapse
use odin to flash it

msolus said:
Will CF root work on Gingerbread?
Click to expand...
Click to collapse
Yes take the xwjv1 cf but no cwm...
to have it you have to flash a speed kernel ...or a kernel with cwm

[Q] (Q) Root problems I9000T after official update to froyo

Hi. Im having trouble when i try to root my I9000t after kies update to froyo.
Im using Z4root and it doesnt work. When my phone had eclair z4root work fine and my phone was rooted. Before the update i unrooted the phone with the option in z4root.
So what i have to do to root my phone again?
Thanks for your help

Try SuperOneClick, downloadable from XDA, or flash Chainfire's CF Kernel (also available in XDA)

troyanx said:
Hi. Im having trouble when i try to root my I9000t after kies update to froyo.
Im using Z4root and it doesnt work. When my phone had eclair z4root work fine and my phone was rooted. Before the update i unrooted the phone with the option in z4root.
So what i have to do to root my phone again?
Thanks for your help
Click to expand...
Click to collapse
I can confirm that SuperOneClick works on Stock Froyo on this phone...

Root SGS I9000XXJPK

I am only wanting to root Gingerbread 2.3.3 on my SGS I9000 baseband I9000XXJPK. How can I do this? Where can I download the file I need to root? I am only wanting to root so I can use Voodoo Sound.

Check this post HERE
or look for :I9000XXJPK_KERNEL.tar and Run odin with auto reboot checked, loading the I9000XXJPK_KERNEL.tar as PDA :good: