My iPhone 5c is constantly glitching?

My iPhone 5c is constantly glitching. It all started when I smashed my phone and when I took it to Apple and they said they repaired the screen and the glitch, but unfortunately the glitch was still there. I just recently paid for a screen change in hope of it fixing the glitch, but it still hasn't gone!

The glitch consists of:
Not letting me unlock screen/enter code
Going into apps by itself (playing music etc)
Typing and calling by itself
Freezing
And not letting me type (deleting/changing words)

Added (1). My iPhone 5c is constantly glitchy get, help?!

Added (2). My iPhone 5c is constantly glitching, help!

I've has similar issues, but dude smashing it? But anyway you could have damaged the mother bored, causing these issues, or the LCD could be damaged. I don't know if you got a new LCD but if you didn't then that might just be the issue ^~^ I'd let them take a closer look and let me play around with it and guess to what's wrong c: hope this helps a little. And this isn't fixable unless you want to take it apart yourself (trust me. Isn't fun.)

Am having the exact same problem! Did you figure it out?!

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