I have a Galaxy S Captivate and it has been problematic ever since. I flashed various stock roms (with and without bootloaders) in download mode and the phone always gets stuck at the boot screen ...
My Samsung Galaxy S2 GT-I1900 won't boot. I tried to update to ICS with Kies which crashed, wherefore I unplugged the USB to start over. Now my phone had no OS, and wouldn't respond to Kies anymore. ...