The database is in the c:\avdap\db folder. 5.270 is a very old and very buggy version. I would re-flash the CPU with 5.2F9 software and load the same on the EVMC.

This is a software only upgrade. 5.270 was so buggy, they didn't even require you to switch the PAL chip.

The EVMC version you'll need to load may not be 5.2F9. The minor version, 9 in this case, may be something else. Usually 2 or B. Both are compatible.