[Q] I9300 Help needed I think its bricked :(

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http://forum.xda-developers.com – Ok this is what I done GT-I9300 UK 2 weeks old. I install I9300XXDLI 7_I9300OXADLI7_I9300XXDLI7_BTU with Odin all went fine and been using it for about a week but too many bugs on this OTA. So I wanted to downgrade back to I9300BVBLG 2_I9300ORABLG1_ORA everything went fine and I got a green PASS in Odin but when restated the phone would go no further then Samsung welcome screen and then just flashed with the blue led flashing very slow, I left it for 10mins but nothing, just the same. I closed Odin and then tried to reboot the phone..again nothing!! A friend told me to try again but this (HowTos)