Yesterday I have updated my Galaxy S3 I9300 to Kitkat 4.4.2 using a custom ROM. While I wasn't satisfied with the performance of that custom ROM, I have downloaded the Stock 4.3 firmware and tried to downgrade it using ODIN.
All went smoothly till my S3 stuck on Samsung Logo while rebooting with 4.3 installed. It does nothing now except stuck on the Samsung Logo.
I am afraid that I did brick my phone.
Any help will be highly appreciated as I need my phone back to work urgently