Does anybody know exactly what gets changed in the eboot by the BM? It must remove encryption when doing a backup but how exactly? What I mean is that if you try an eboot from a "different source" you get the eboot error so changes are being made at some point to the eboot, correct?
If we knew exactly what gets changed, perhaps this change could be applied to game update eboots so they could be applied and the game still work?
Of course, I could be talking out of my rear here because I know nothing of the encryption/decryption process.