Decoding Filenames

Filenames are broken down into individual parts of the file version. Using the first file as an example:

Filename: ca652040_G2E7TM0B_6577715107_5WY1503B.bin

ca652040 - Calibration version. 652XXX is a 2Mbit file while 654XXX and 655XXX are 4Mbit files.

G2E7TM0B - Intended vehicle model, year, IMMO enabled, software version
G - GK model
2 - 2002 year (3 - 2003, 4 - 2004 etc etc)
E - European (N - North American)
7 - Delta 2.7L
T - UNKNOWN
M - IMMO Enabled (S - IMMO Disabled)
0 - Software version 1 (5 - Software version 2, updated by Hyundai dealership typically)
B - UNKNOWN

6577715107 - Machine code version.

5WY1503B - ECM family and hardware version number.
5WY15XXX - 2Mbit family 2002-2003
5WY17XXX - 4Mbit family 2003-2004
5WY18XXX - 4Mbit family 2005-2006
5WY1FXXX - 4Mbit family 2007-2009