How to Downgrade 2.2 to 2.1

Hello all,

I just got a galaxy S (UK) and upgraded it to 2.2 with samsung kies (I9000XXJPP). I tried playing a video file (TV episode) and the video and audio is out of sync (works fine on my pc). I googled this problem and found that it only happens on version 2.2. (does anyone know how to fix it?)

I reset to factory as that had been mentioned, but still out of sync:(

I want to downgrade to version 2.1 to see if the audio sync problem still happens on that. The problem is while i searched your forum i found some useful posts:

1) http://www.samsunggalaxysforum.com/index.php?topic=1993.0
2) http://www.samsunggalaxysforum.com/index.php?topic=2159.msg10456#msg10456

But im not sure im doing the right thing. I assume i download

ODIN + PIT
ALL CSC
I9000XWJM9|2.1|2010 September|Download


Then follow the instructions on link #2?

Can anyone confirm or create a stickified guide on
1) how to upgrade
2) how to downgrade

Thanks to everyone that helps!

Hello

So I've I managed to downgrade.

The problem - my phone would not go into download mode using the 3 button combo (so I installed the android sdk and used the adb commands after hours of googling).

I still have the same problem with my audio and video being out of sync even on 2.1. I am going to make another thread for that problem.

HERE: http://www.samsunggalaxysforum.com/index.php?topic=2467.0

I am having trouble downgrading it. I do not know which file to download and which column to put it in odin. Can someone please help me.

I have using Samsung Galaxy S 2.2. i cannot seem to use my 3G even when i have switched it on. Need help here as well. If can resolve this problem then i do not need to downgrade my phone.