[Q] How to undo froyo 2.2 upgrade - Galaxy S I9000 Q&A, Help & Troubleshooting

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!!!

Related

is there Lagfix for jp6 froyo 2.2?

As the title says ive installed official jp6 via kies (norwegian official).
Tried to install oclf lagfix , since i think the jp6 aint smooth enough without.
Oclf didn work for me atleast, all the buttons is red.
So is there any other lagfix for jp6 out there yet, like voodoo or something else?
You must root it before.
What is the easiest method for rooting this official Froyo ? RyanZA's One Click Lag fix APK should be great and easy to use but it does not support VooDoo but OneClick Lagfix and most of the people say that VooDoo is better. So please can someone give us .apk which could root and install VooDoo lag fix on official Froyo when new VooDoo is out ? Like .apk and if it is not possible then as update.zip all in one solution. I really think that some "update.zip" file which roots and installs VooDoo lagfix at once would be great fot all of us.
Tnx
damirbusic said:
What is the easiest method for rooting this official Froyo ?
Click to expand...
Click to collapse
I used Chainfire's fix:
h++p://forum.xda-developers.com/showthread.php?t=788108
Not exactly one-click, but not that hard either.
http://forum.xda-developers.com/showthread.php?t=803682
this worked fine for me, then oclf worked once i removed the cable and rebooted the phone

[Q] No more able to root the SGS (official Froyo - Z4Root)

Hi all,
my problem is that Z4Root doesn't work any more. It seems to work... reboot the phone... and nothing change.
This happen after I've unrooted the phone and a friend of mine applied the root procedure from OCLF.
I wiped all more than one time but Z4Root and SuperOneClick also doesn't work.
Any idea to solve this? If I flash an Eclair official ROM I'll be able to update it to Froyo via Kies?
Thanks in advance.
Zag

Which root for FROYO.DTJP5 PDA:JP5 PHONE:JP3 CSC:JP4 Australia Optus (using on Three)

People in Australia are of course happy with the release of Froyo.
Did my updates etc. Now I got 2.2 running and want to know how to root this. I see there are some one-click apps and programs out there. But which one would be best for my
FROYO.DTJP5
PDA:JP5 / PHONE:JP3 / CSC:JP4
????
(more details of my version in signature below)
Next, I would like to know how to change the boot animation?
and did someone get call recording working (as in the Korean version)?
Do you have 3 button combo working? If you do its probably easier to flash new kernel that has root in it plus it will have lagfix options or better still install new jpu 2.2.1 fast as hell and no need to lagfix.
tragusman said:
Do you have 3 button combo working? If you do its probably easier to flash new kernel that has root in it plus it will have lagfix options or better still install new jpu 2.2.1 fast as hell and no need to lagfix.
Click to expand...
Click to collapse
Thanks, you are the 2nd person to suggest JPU 2.2.1. I will look into that. However, I read it will not recognize Kies anymore. Before, as most I hated Kies. But with the new Froyo update it finally works and syncs even the Outlook pictures. I still dont know what the lags entails, and what the benefits are of JPU 2.2.1. So would be glad to hear more about the differences.
For the reader. I was able to use z4root. The installation of z4root didnt go correctly. But it was there after a restart and root was succesful.
I used z4mod for my DTJP5, and it's working fine.
VeenK, did you upgrade via kies or odin?
wayne_zmh said:
I used z4mod for my DTJP5, and it's working fine.
VeenK, did you upgrade via kies or odin?
Click to expand...
Click to collapse
which version of z4mod thanks..
?)

2.2.1 root

Hello,
First i used z4root to root my sgs 2.2 but since i updated to 2.2.1 i cant root it anymore.
Anybody got a solution?
Greetings from holland
Sent from my GT-I9000 using XDA App
SuperOneClick.
http://forum.xda-developers.com/showthread.php?t=803682
Desktop app that seems to work with EVERY firmware version I've tried.
Alternatively, flash one of the custom kernels from the i9000 dev forum. For example, I've flashed SpeedMod which includes root as well as the recovery fix.
Yeah, I met the same problem, once I upgraded to official 2.2.1 JPY. Unfortunately, since Z4root doesn't work anymore, there is no easy way to root it without computer.
Seems like super one click is the best option so far.
Plus, you might be aware as well, adfree can't support i9000 2.2.1. :-(
gtg2 said:
SuperOneClick.
http://forum.xda-developers.com/showthread.php?t=803682
Desktop app that seems to work with EVERY firmware version I've tried.
Alternatively, flash one of the custom kernels from the i9000 dev forum. For example, I've flashed SpeedMod which includes root as well as the recovery fix.
Click to expand...
Click to collapse
Thank you, with SuperOneClick it worked .
I'm Root again.
I could not get SuperOneClick working on my Dutch SGS. I regained root on 2.2.1 with CF-Root-XX_XEU_JPY-v1.3-BusyBox-1.17.1.
Just pushed it in using Odin, no problems so far.

How to root and install lag-fix on android 2.2?

ive beeb trying to search the thread on how to make the samsung galaxy s less lag and i cant find it i updated my phone using kies im on froyo 2.2 now. saw some tutorials but only working on 2.1 for the rooting purposes can anyone show me the thread on how to root samsung galaxy s running on 2.2 and give me some apps to less the lag thanks very much....;
[Mod Edit] Title edited because it was misleading , this way this thread may be of help to others with similar questions.
Regards
faria
oh this is simple. go to development thread and you should find a bunch of choices of Kernels. They mostly have Odin for you to download, then u can use Odin to flash a custom Kernel over your stock one. Then go to recovery and go to the advance options and Root your phone fromt here. All new Kernels are pretty awesome cuz they will root your phone for you and insteall superuser + busybox.
=]
here's the easiest way to root your SGS..
http://forum.xda-developers.com/showthread.php?t=803682
just make sure you follow the instructions:
You NEED to put your phone on USB Debugging mode
You NEED to install make sure the Android drivers for your phone are installed
Make sure you DO NOT mount your SD card.
If you still can't get something to run, try doing it in recovery mode
The easiest way to root+lagfix (especially if you're newer to this sort of stuff) is to install Voodoo.
It will automatically lag-fix your Galaxy S and then all you do is install "superuser" from the market and you've got root. Nice and simple.
vinstot said:
ive beeb trying to search the thread on how to make the samsung galaxy s less lag and i cant find it i updated my phone using kies im on froyo 2.2 now. saw some tutorials but only working on 2.1 for the rooting purposes can anyone show me the thread on how to root samsung galaxy s running on 2.2 and give me some apps to less the lag thanks very much....
Click to expand...
Click to collapse
Another option is to go to samfirmware.com and using ODIN instal I9000XWJS5. Full instructions are on site. The advantage of this is you get a good stable ROM, smoothness, fast, better battery life and there is no need for a lagfix - much safer.
Enjoy your SGS.
i downloaded z4root and get a little bit confuse of the temporary and permanent root can anyone explain me whats the difference thanks.
DaRkMyk said:
here's the easiest way to root your SGS..
http://forum.xda-developers.com/showthread.php?t=803682
just make sure you follow the instructions:
You NEED to put your phone on USB Debugging mode
You NEED to install make sure the Android drivers for your phone are installed
Make sure you DO NOT mount your SD card.
If you still can't get something to run, try doing it in recovery mode
Click to expand...
Click to collapse
what do u mean by installing all android drivers for my phone? install all android drivers on my pc?
vinstot said:
what do u mean by installing all android drivers for my phone? install all android drivers on my pc?
Click to expand...
Click to collapse
It means that your computer must have the correct drivers for you Galaxy S. You'll be connecting the phone to your computer, the computer needs drivers to recognize the phone.
Just install Samsung Kies, all the needed drivers will be installed as well.
Sent from my Samsung I9000 Galaxy S.
Your best and easiest bet would probably be to install the Spedmod kernel, or a custom Tom. Realty all you have to do is go to the developement section.
Sent from my Galaxy S using Tapatalk
i installed ryanza oclf 2.0 but i when i try to activate the onelagfix i got an error i dont know why any other lag fix programs u guys can recommend?
vinstot said:
i installed ryanza oclf 2.0 but i when i try to activate the onelagfix i got an error i dont know why any other lag fix programs u guys can recommend?
Click to expand...
Click to collapse
Your device must be rooted to do that.
Please.. Don't just try anything without a thorough read. You might end up bricking your device.
First of all, I am not a fan of Lag fixes, some lag fix users had lost their internal memory because of it and if you use it you'll only have 600mb internal memory.
I suggest you to upgrade to a stock Froyo 2.2.1. It is faster than 2.2 and almost on par with LagFixed SGS. I'm currently using Froyo 2.2.1 XXJPY and it is very stable.
Search on the General section on how to upgrade to 2.2.1
Sent from my Samsung I9000 Galaxy S.
phone is rooter now with z4root. so jsut trying to install some lag fixes for the phone. is 2.2.1 available on europe part? thanks
Firmware is froyo 2.2
base ver is XXJPP
kernel is 2.6.32.9
just use the attached, works on the dutch 2.2.1 etc
Johnny55555555 said:
just use the attached, works on the dutch 2.2.1 etc
Click to expand...
Click to collapse
cool thanks very much
DaRkMyk said:
Your device must be rooted to do that.
Please.. Don't just try anything without a thorough read. You might end up bricking your device.
First of all, I am not a fan of Lag fixes, some lag fix users had lost their internal memory because of it and if you use it you'll only have 600mb internal memory.
I suggest you to upgrade to a stock Froyo 2.2.1. It is faster than 2.2 and almost on par with LagFixed SGS. I'm currently using Froyo 2.2.1 XXJPY and it is very stable.
Search on the General section on how to upgrade to 2.2.1
Sent from my Samsung I9000 Galaxy S.
Click to expand...
Click to collapse
phone is rooter now with z4root. so jsut trying to install some lag fixes for the phone. is 2.2.1 available on europe part? thanks
Firmware is froyo 2.2
base ver is XXJPP
kernel is 2.6.32.9
vinstot said:
phone is rooter now with z4root. so jsut trying to install some lag fixes for the phone. is 2.2.1 available on europe part? thanks
Firmware is froyo 2.2
base ver is XXJPP
kernel is 2.6.32.9
Click to expand...
Click to collapse
Currently all froyo 2.2.1 is only for Europe Galaxy S. I installed mine via Kies Registry Hack. You can also install it using Odin.
I Swyped this on my Galaxy S
DaRkMyk said:
Currently all froyo 2.2.1 is only for Europe Galaxy S. I installed mine via Kies Registry Hack. You can also install it using Odin.
I Swyped this on my Galaxy S
Click to expand...
Click to collapse
kies registry hacked? where can i find it? thanks for helping
vinstot said:
kies registry hacked? where can i find it? thanks for helping
Click to expand...
Click to collapse
I'm sorry but the kies registry hacking is no longer working, Samsung already blocked the kies versions 1.5.3.10103.102 and lower. Here's the thread
http://forum.xda-developers.com/showthread.php?t=835628
Your only option now is to wait for the official release on your country or Flash 2.2.1 via Odin, remember to backup before doing it coz it'll erase all your data.
Follow this thread on how to flash Froyo 2.2.1 I9000XWJS5
http://forum.xda-developers.com/showthread.php?t=954377
my phone is branded but its unlock now can i use odin to install froyo 2.2.1?
vinstot said:
my phone is branded but its unlock now can i use odin to install froyo 2.2.1?
Click to expand...
Click to collapse
Yes you can, mine is also branded and unlocked plus with singtel BLOATWARE. when I upgraded to XXJPY which is an unbranded rom, all of the annoying bloatware is gone.
I Swyped this on my Galaxy S

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