Did I brick my Device? topic

I went to do a hard cache wipe by pressing the power volume down and did the wipe. after the cache wipe...

I accidentally went into another screen. I now have the green android with the red triangle with am exclamation point inside it. Underneath that It reads...

"Now send the package you want to apply to the device with adb sideload <filename>"...

Is their any way I can get back to normal? Can Someone save me :(