So I bought the Nexus 5 about 2 months ago and it occasionally would hang and I would need to force reboot it. I found out Slimkat was very stable and fast so I flashed that almost immediately. I had absolutely no problems until after the 4.4.3 update, which quite literally, a few days after, my phone emitted an odd noise (almost like the N64/NES freeze noise) and shut off. It would refuse to reboot. I contacted my carrier and they told me it'd be 150 to replace it. I decided to try and fix it.
I used a toolkit to put everything stock on the phone.
Now, I'm running 4.4.2 OTA. I'm still having frequent crashes with the same noise. After a crash it takes anywhere from 5-20 minutes for the phone to actually boot.
It essentially boots, shows the Google screen and freezes there or just completely goes black.
Or, it goes into the bootanimation and freezes or goes black.
I finally got a logcat though and have two separate lists. The errors and the whole logcat.
Error log: http://pastebin.com/ZTwJXntG
Full logcat: http://pastebin.com/2DNy99b2
If anyone could provide insight and possibly a way to fix this, it would be very appreciated. I don't have 150 dollars to fix this right now lol