My Galaxy S5 GT-900T1 screen boots up to SNOW Static, not blank, but STATIC SNOW

A

AC Question

After trying an ANKER Extended (larger) battery for my Galaxy S5 the screen flickered and rolled with booting up. The battery itself seemed magnetized after charging overnight. Took out battery put old one in and screen shows complete snow/static. I can feel it booting up but cant see anything.
Already tried the power drain method a few times (holding down power button for over a minute after taking battery out and waiting 10 mins) and still shows static.
USB hook up to laptop only shows phone but no more storage. Phone way over tear old, out of warranty. Am I just screwed here?