mobile

I very recently purchased a used Galaxy Note 3 that has been well used and loved. I bought it because I was told that the phone died whilst updating to Lollipop and because of this, the phone will now not boot. It is stuck in a bootloop with Recovery........ In the top corner.

Now my problem is this, I cannot get into Recovery Mode. It Just turns off again before I can access the screen, vibrates, then comes back on, rinse and repeat. I can get I to Odin mode, download mode, if you like.

I have tried flashing a Lollipop stock OS onto the device but I continually had the same problem, so I downloaded a CWM Recovery and flashed that onto the phone, but now I'm getting an error of SEAndroid is not enforcing... Blah blah.

I am incredibly stuck here and I know literally nothing about rooting. I just want this fixed, and am willing to try anything you throw at me if you're willing to push me to get there. Thanks, and I appreciate any advice!