Custom on Galaxy S3 Boot

[TCates]

I had recently attempted to root my galaxy s3 and I had bricked it but then fixed it with the stock tom. Every time I boot my device it show the sanding screen and then under it it says custom. I don't want this to be there. What should I do to remove this? I have the Version Galaxy S3 please reply to my email
TCates.comments@outlook.com

Thank you

 

[TCates]

Sorry for the spelling errors they're are the corrections
Tom=rom
Sanding=samsung
Version=verizon

Sorry