DM-41X USB Disk Missing

[cdmackay]

hi Gerry,

There's a well-known issue that the USB socket on these calcs may be a bit too far recessed, or too deep, or alternatively that the plastic around the socket protrudes too much. The end result is that some USB cable plugs don't make proper contact in the socket.

This can lead to the PC not seeing the disk or, worse, it disappearing during activity, resulting in its corruption (after which it may not appear at all).

Not all USB cables are the same: if you compare yours, you may find that some have longer plugs than others. Find one with the longest plug, and try that.

Another thing people have tried is to carefully shave some plastic away on the USB cable's plug (not the calculator), to in effect make the plug longer.

Your issue may not be related to the above, but it's worth ruling out, first.