[Q] Stuck on Boot screen whit SG3

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http://forum.xda-developers.com – Hello, my samsung galaxy s3 (GT-I9300) is stuck on the boot screen. i was rooting it and everything worked perfect. i downloaded a app named VZW GS3 EZ-Unlock (Bootloader). i rebooted my phone and now im stuck at boot screen i have tryed to reset factory thoght CWM but nothing happends Please help! (HowTos)