Tried flashing the boot animation and I got an error flashing zip downloads SD card I mounted then flash what did I miss this time ? Lol
the bootanimation.zip is not a flashable zip. you just copy and paste into the /system/media directory and set permissions rw-r-r.
when you're not sure whether a zip file is flashable or not, you can open it in a zip utility like 7-zip and see if there's a META-INF directory. if there isn't, it's not a flashable zip.