I have a Galaxy S and i upgraded to i9000xxjpc with 830 pic file. It ran for a while but at the second reboot i've got a very expensive paperholder: blackscreen that doesn't go away. I tried to boot in download mode and it works. At least I'll be able to reflash it.
Just a bunch of thoughts about the new firmware:
- The functions are pretty the same but in froyo they are native.
- It seems a lot slower than the previous firmware (2.1-update1) that should be the latest provided by samsung
- Address book has been deleted as i was expecting. Apps were still there but in an unusable state (they crash as i try to start them) so a reinstall was needed.
Long story short: i wish i hadn't upgraded, but whene i saw android for the first time i felt like my first day on linux: i had to mess up with it. Now i have this shiny brick and i have to reflash. Feel free to reply with any suggestion or different experiences.