Serendipity 6.3
Download

Installation

1. Backup all of your apps, photos, etc. Use Titanium Backup (on the market) for your apps. Put the backup files on your computer, along   with your photos and such.
2. Using Odin, flash back to stock.
   
3. Using Odin, Master Clear THIS DELETES EVERYTHING ON YOUR PHONE, INCLUDING THE INTERNAL SD CARD.
4. Install Clockwork Mod recovery.
   
5. Transfer Serendipity_x.x.zip to your SD Card.
6. Reboot into Clockwork Mod recovery
7. Flash Serendipity_x.x.zip
8. Following installation, reboot the phone.
9. If presented a screen about conversion, select "YES". This will enable the lagfix.
10. Allow the phone to finish booting. This will take an abnormally long time. Somewhere between 2 and 4 minutes. The dots will not stop for any period longer than 10 seconds.
11. Allow the phone to establish a data connection. This will take longer than normal, and should be done within a minute or two.