This is a tool which can flash your Samsung device with software. We wont't take responsibility for what you flash.
-This isn't a tool for novices. It can cause real damage to your device if used improperly.
-Don't use this to flash large files. Heimdall has a buffer problem with large files.
-Always obtain your files from trusted sources.
That's it. Sit tight and have your device nearby (and charged).