[Q] M8 won't go past splash screen topic

HI guys, so I can't get my M8 to go past the splash screen. I've tried countless ROMs (even stock 4.4.2 from Android Revolution), all of which say they install fine, but nothing. Even when I restore a TWRP back-up it fails to boot. I'm S-ON and was rooted. I've tried wiping System, data, dalvik, cache, factory reset. Nothing happening.

Any ideas? I'm stumped ...