Feedback during the process will be provided through the serial con-
nection.
After sanitizing all data, the unit will be brought into a HALT state.
4.8.4.1 Sanitizing Process
These are the steps to complete the data sanitizing process:
1. Disconnect all physical connection to GNSS receivers (this includes SAASM
receivers and STL, if you have those configurations).
Note: If you have a SAASM receiver installed, you will need to perform the
zeroize function (reference the SAASMaddendum for more information).
2. From the Safran Trusted 4D website, download the software version that
you would like your unit to be set to after sanitizing.
3. Log in to the Web UI as an admin user and navigate to TOOLS >
Upgrade/Backup. In the Actions panel, select Update System Software.
4. Upload the software upgrade file previously chosen to overwrite your sys-
tem and select Upload.
5. Once the upload is successful, select Perform Upgrade and Sanitize Unit.
Choose Submit and then select OK in the confirmation dialog.
6. The unit will undergo the full sanitization procedure (the entire process will
take approx. 20 minutes and may take longer depending on unit con-
figuration). The front panel LEDs will illuminate in order from left to right
scrolling and remain fully lit to simulate a progress bar. The rightmost LED
will be the last to remain flashing, and this will indicate that the unit is on the
final step.
7. After the unit is fully halted (no LEDs will be flashing), the process is fin-
ished and you can safely remove power. At this point, no user data or usage
data exists on the unit.
Serial Feedback
The serial connection provides feedback during the sanitization process, even
during states where the unit is otherwise unreachable, provides time estimates
during each major state transition, and ends with the communication that the
unit is being brought into a Halt state.
If you prefer, it is also possible to begin the sanitization process through the CLI.
After uploading the desired file (via the Web UI, SSH, or some other desired con-
nection), you can run the command swupgrade [file] --sanitize
4.8 Resetting the Unit to Factory Configuration
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