Black screen and vibrates every 2 seconds. NEED HELP

I looked for another post like this but didn't find one, so I'm sorry if this has been asked before.

I have a Cricket Galaxy Grand Prime SM-G530AZ and I believe the firmware I flashed was actually for the Grand DUOS.

Now when I try to turn it on the screen stays black (but apparently responsive?) and it vibrates every 2 seconds or so.
If I let it sit a while it will stop vibrating, but if I touch the screen or move it it starts vibrating again, but still with no screen on.

I've tried just about everything I can, people keep telling me that its not actually bricked but I don't know what to do at this point.

Mi band 1s vibrates with no reasons

Hello there. I have a problem with my mi band. A long time ago I set up an alarm, I've used it for a few days, then I deleted it, but the band is still vibrating at that time and I still couldn't have stopped nor understand why it happens. There is no alarm set up and there are no notifications when it vibrates. Did anyone else have my same issue ? Is there anyway to solve it or I can throw the band to garbage bin ?