Originally posted by another user
• Step 5: Now your TROPTRNS.DAT will be decrypted. Open it in HxD and look for Offset 0x2C0, this is the trophy installation date , you will see two timestamps, first timestamps is Block 2C1-2C7, second is block 2C9-2CF , as you can see each timestamps is composed by 7 bytes. You do not need to modify these timestamps.