Here are some quick tips :
(Here I'll use the terms like Download-Mode & Recovery-Mode, If you dont know what they are google it. ("BOOT to RECOVERY" & "BOOT to BOOTLOADER" means how to enter into Recovery-Mode & Download-Mode respectively.)
A Bricked Phone May Have One or More (Below Problems) :
- Booting to the ROM(Android) not possible.
- Booting to the Recovery-Mode not possible.
- Black screen or Bootloop(Repeated Restarting of Phone at Boot Animation or Samsung Galaxy Y Logo).
Possible Solutions :
(Remember there'll be data loss using these solutions so always try to keep a backup)
If you can still enter into Recovery-Mode
(a). Try to clear Data & Cache then check.
(b). Try Installing a Custom ROM using CWM(ClockWorkMod Recovery) & check.
(For Custom ROM & CWM Visit here.)
If Recovery-Mode didn't helped Enter into Download-Mode & flash an odin supported stock rom(using ODIN 1.84 or 1.85) from Doky73's Thread(Flashing Guide in 2nd post).
*You can inform me, if anything left out.
you must try going in download mode!