QUOTE(mars0124 @ Sep 7 2009, 03:26 PM)

The idea that it could be a bad eeprom seems odd to me though. I tried backing it up with EVOX and with Forrrest Tools, and one other that I can no longer recall. And, as mentioned, I tried locking it manually (unlockhd -p) using the password as told by eeprom backup/system info from one of my dashboards.
Backing up the eeprom if you have virtual eeprom enabled only backs up the virtual eeprom, which is read from a file on the disk, not from the actual eeprom. If you took your softmod files from another Xbox with an existing eeprom.bin backup then all you are doing is taking another copy of the eeprom from the other Xbox.
Manual locking with the password from the stock disk won't work either, because the password is specific to the disk you are locking - it is a mathematical combination of the disk serial number, the disk model number, and the HDD key from the eeprom.