I've copied the files onto the folder location but NCS can't find it. :S how do I get it to see it?
OK.. try this:
Make sure phone is not connected to computer via USB and phone is turned OFF.
1 - Load up NCS and choose 'Product Support Tool for Store 5.0
2 - Choose 'Work Offline'
3 - In Product Support Tool program choose File>Open Product
4 - Type RM-937 in filter box
5 - Should show Lumia 1520 in list. Click Open
6 - Goto Programming > Recovery
7 - CV ROM should now show in list. No need to click 'Update'
8 - Click 'Start'
9 - After a while a window will show asking you to Retry
10 - Hold Volume Down on phone and plug in USB to computer. When phone vibrates, release Volume Down
11 - Click Retry
12 - Program should ask if you want to continue.. Something about incorrect product code. Click: Yes
13 - May also ask if you want to continue flashing with internal memeory (SD card). Again click: Yes
14 - ROM should now flash to CV one.....
15 - Enjoy!!!
Good luck...