So I recently got a I9000 from a friend. It was on android 2.3.4 and it baseband was I9000ZSJZ, already rooted but had no CWM. I wanted to upgrade the OS to 2.3.6 and add the CWM to the phone but I could not found a thread in the Android Development that contain firmware. So I search the internet and ended up in the Galaxy S Captivate. The thread said if I had normal bootloader with I9000 logo I should flash the one with the AT&T bootloader. I thought those two were the same so I use Odin to flash the latest one with CWM. When it boot, my phone was very laggy, it has no Baseband, the back button turn into the home button and the home button does nothing. I don't see the signal bar and everytime I tried to plug my phone to PC it always automatically turn off. Can anyone know how to fix this problem??? I can still enter the CMW mode and download mode, and I have tried flashing another firmware with baseband I9000 but still no luck. Anyone can help???