2006 Sonata won't start, Cam Sensor Problem

My 2006 Sonota V6 3.3 suddenly paused & stopped accelerating. "Check engine" light blinking, "ESC Off" light on. Even when flooring it no acceleration nor rpm increase (this is "limp home mode"). Got error code P0346 (Bank A Camshaft Position Sensor) and a few other codes indicating cylinders 2 and 4 misfiring). Btw, Bank A is Bank 2 (crazy, right!), affects Cylinders 2, 4, & 6. There are 2 cam sensors on the V6 3.3. Bank A or 2 is located on the front right of engine closest to radiator. Fairly easy to access and replace ($60to$100). But after replacing and leaving battery disconnected for 2 hours, car still won't start and I don't know why (battery still has plenty of juice). Does anyone know the next step?
Guys, please help. I'm clearly not a mechanic. I only posted what I've learned so far to hopefully help someone along the way.