Tag Archive: factory reset

Factory Reset Series 3 JNIOR

Unlike the Series 4 JNIOR, the Series 3 JNIOR’s do not have a command that can be used to factory reset them. To get a Series 3 JNIOR as close to factory reset is to follow the steps below:

Step 1: Delete the Registry

On every JNIOR is a jnior.ini file. This file is the saved registry values on the JNIOR. To reset the registry we will need to remove this file from the JNIOR. Two ways to remove the file is to either right click the JNIOR in the support tool and go to Tools/FTP to access the files on the JNIOR, or make and command line connection and remove the file using the command line. Thing is, the JNIOR automatically backups the registry every couple of minutes, so even though we delete the jnior.ini file, it will repopulate after a few minutes. To make sure the registry does not regenerate, we have to delete the jnior.ini file, and then quickly after pull power from the JNIOR for 30 seconds. This will prevent the a backup of the JNIOR from being created. Below is how to get to the jnior.ini file by using FTP.

Use FTP from support tool and go to the flash folder
Delete jnior.ini file and pull power from jnior for 30 seconds

Below is how to remove the jnior.ini with the command line:

In the picture below we use the Series 3 Java applet configuration page to send command through command line. To open the Java applet, right click the JNIOR in support tool and select Tools/Open Classic Monitor, Configure, Control Application. Then go to the Command Line Tab and that’s where you’ll enter the command rm flash/jnior.ini. This removes the jnior.ini file in the flash folder from the JNIOR.

Go to the Command Line tab once you login using jnior, jnior
Enter the command rm flash/jnior.ini and hit enter, then remove power for 30 seconds

Step 2: jrflash -f

After resetting the registry, we’ll then want to reformat the flash memory. To do this, if you haven’t already we’ll need to make a command line connection to the JNIOR. Once a command line connection is made, you’ll enter the command jrflash -f. Let this command run, and once this is done you’ll re-update the JNIOR with the Series 3 All-In-One update project. In the picture below we use the Series 3 Java applet configuration page to send command through command line. To open the Java applet, right click the JNIOR in support tool and select Tools/Open Classic Monitor, Configure, Control Application. Then go to the Command Line Tab and that’s where you’ll enter the command.

Go to the Command Line tab once you login using jnior, jnior
Enter the command jrflash -f and hit enter, when command finishes update JNIOR using Series 3 All-in-one update project

Step 3: reboot -a

Once the flash has been reformatted and the JNIOR’s been reupdated with the Series 3 All-in-one update project, you’ll connect to the command line again the same way you did for the last step and enter one more command. Enter reboot -a, as this will reset the heap memory.  This clears up fragmented memory, so when memory is being allocated for applications or files to be moved on the JNIOR, enough space is available for them to exist.

After that, your Series 3 JNIOR should be as close to factory reset as possible!

By | On February 16, 2022 4:29 pm | No Comments |

Resetting a JNIOR to Factory (Sanitize)

Sometimes a JNIOR gets re-purposed.  A JNIOR was performing one task and now it is going to perform a new one.  You may want to clean up the JNIOR before configuring it for the new operation.  In this case we will want to sanitize the JNIOR.  To complete this task there will be two steps that will need to be performed.

First, we will need to “erase” the unit.  To do this we will execute the following command;

reboot -eraseall

After confirmation the JNIOR will erase itself.  It will be completely blank.  Only the operating system will be present.  All other software will be removed.  The title says reset to factory but the OS will still be the currently loaded version and will not revert to the version that was shipped.  The IP Address will also remain unaffected.  All other user configuration including the hostname will be cleared.

That leads into the second step.  You will need to get the software package that you wish to install and update the unit with that code.  Use the support tool and the Update tab to do this.

 

Support Tool 7.10 and the 2.1 All-In-One update project were the most recent versions when this picture was taken, please check for the latest versions before downloading.

After doing a factory reset, we recommend updating a JNIOR with the latest JANOS All-In-One update project. Updating this to your JNIOR will restore Web UI functionality for configuring your JNIOR, as well as return applications that came with the JNIOR when it was built.

By | On January 17, 2019 8:31 am | No Comments |