bricked=corrupted bootloader (phone is completely dead)
is not bricked because a really bricked phone will not boot in download mode it's like dead better is to say "is not booting" and the way to solve a "bricked" phone is to flash a stock rom that surely works you have to try many times because you don not know what rom was previously on the phone
1.get a stock rom on sammobile
2.also get corresponding Odin an pit file from there
3.flash by Odin in download mode
if not working try another rom also check if you have Android SDK an Kies make sure you have these tools- you need adb interface working and samsung drivers installed
when in download mode open Device Manager start/run/devmgmt.msc and check if you have adb interface active if not install Odin and SDK then restart PC and try again in download mode...
(don't do anything until you see something like this is Dev Manager -you see this only when phone is connected to PC yes in download mode)
-pit file tells Odin how to flash files on phone in what order and how to so unpack rom and check if you see at least 3 md5 files : CSC/Modem/PDA not all roms are complete don't use a pit file until you have these 3 files in archive
-if Odin says "done" but phone is not booting try to enter recovery and (should work if you downloaded a complete rom ) ...and wipe data/cache/Dalvik-cache then reboot
-if you are missing a pit, pda, modem or csc file you don't have a rom complete so check for a rom with all these files inside archive then you can flash it and you can check "re-partition" in Odin
-if you see ADB Interface connected in Dev Manager it means your phone is in download mode and is not bricked so can be solved ! do not believe me just try !
-if you do not see this install (again) everything/ use another computer and try again! if you don't get a sign this is bricked and send it in service don't lose time
-I don't have this phone (only a Samsung Omnia but this is WM phone) but I have some experience with these "bricked" phones so this is not a complete howto but give me some feedback let's solve these "bricked" phones and close this thread