QUOTE(afad @ Sep 1 2011, 11:19 AM)
isnt bootloop considered brick/semibrick ady? (or not)
if not i aslo have yet to master level

Semi brick : Phone cannot be switch on but can be booted into download mode. SOmetimes you will se this screen of death

Hardbrick : Phone cannot be switch on. Phone cannot be boot into either recovery or download mode using hard 3 buttons
Bootlooping is just a fail flash, easily corrected usually by rewiping cache and clear data/factory reset
You want to experience bricking, you can try this at these conditions :
- phone at 5 % battery charge - flash Litening 5.0 and above
- download samfirmware rom : put in a incompatible PIT file
- pull out the USB cable while flashing is at midway stage
- flash a SGS rom ( the old model )
- if you use any of the cook rom - extract the zip file : change the core system apps ( 2.3.4) with 2.3.3 from another rom. Zip it back and flash