Actually, the way to solve this depends on the device.
It can't be loaded at this time to a NMCI PC or laptop.
If its a VADS your unit needs to be loaded to MCPDS to ensure they get the updates.
If its an EMSS device only an EMSS FSR can update the IETM.
If its a standalone device owned or purchased by the command, you can in fact use the IETM and copy it to the PC/Laptop. Again, your unit must have the PCN for the IETM loaded to its MCPDS accound and your section should be listed on the IDL for the IETM.
If your still having issues, please e-mail me;
Herbie.Morris@usmc.milSemper Fi!