How do I get my Galaxy S3 international version off of a boot screen?

[Bratt Beat]

galaxy s3 international version.stuck on boot screen

hi guys.i rooted my s3 international version yesterday.it was my first time to do it rooting.it was okay my phone was running smooth odin says it passed the rooting process playing games like clash of clans check also root checker saying your phone is rooted.then i woke up awail ago.my phone was shut down.i powered it up it shows the samsung galaxy s3 gt i9300.it just stuck there when ever i started it up again it keeps showing only the samsung galaxy s3 blah blah.i tried removing the battery and putting it again.i tried also going to recovery mode to factory reset it it boots.it didnt not work it still stuck on the samsung galaxy s3 blah blah.my phone can still go the download mode.please help