MacTest 7.0: 500XX and 400XX Errors

After upgrading a Macintosh 512K for a Macintosh Plus disk drive, MacTest 7.0 crashes with error 500XX or 400XX (X could be any digit).
The disk may be unformatted or write protected. (This information may also be found in the Technical Procedures binders).

Solution:
Find your error code below and perform the appropriate corrective action:
- 40080.0002 Internal disk write protected
- 50080.0002 External disk write protected
- 50070.0001 disk in external drive is not formatted properly

If the above cure doesn't fix the problem, search on GTS and the product's name to obtain a general troubleshooting procedure.
Published Date: Feb 19, 2012