Performing a Factory Reset on the LA-5291, LA-5300, or UpMAX ISC via SSH

Overview

This article describes how to perform a factory reset on the following Linear Acoustic products using an SSH connection:

• LA-5291

• LA-5300

• UpMAX ISC

The factory reset is initiated by running a reset script from the product's Linux command line.

Warning: A factory reset restores the unit to its default configuration. Back up any required settings before proceeding.

Prerequisites

Before you begin, ensure you have:

• Network connectivity to the product.

• The product's IP address.

• A Windows PC with Tera Term installed.

• Administrative access to the device.

Connect to the Product Using SSH

1. Open Tera Term.

2. Select TCP/IP.

3. Configure the connection using the following settings:

   Setting	Value
   Host	IP address of the LA-5291, LA-5300, or UpMAX ISC
   Service	SSH
   TCP Port	22
   SSH Version	SSH2
   IP Version	Auto

4. Select OK.

5. After a few seconds, a security confirmation window will appear. Select Continue.

6. When the SSH Authorization window opens, enter the following credentials:

   Field	Value
   Username	user
   Password	(Leave blank)

7. Select OK to open the terminal session.

Perform the Factory Reset

At the command prompt, enter the following commands:

su
cd /usr/arc
./factory_reset.sh

Note: There is a space between cd and /usr/arc.

What to Expect

After the reset script is executed:

• The front panel display will go blank.

• The unit will begin the factory reset process.

• Once the reset is complete, the front panel display will return to normal.

• The web user interface should automatically reconnect after the device finishes restarting.

Verification

After the unit has restarted:

• Verify that the front panel display has returned to normal.

• Connect to the web interface.

• Confirm that the device has been restored to its factory default configuration.

• Reconfigure the device or restore a saved configuration if required.

Troubleshooting

If the reset does not complete successfully:

• Verify that the SSH connection was established using the correct IP address.

• Confirm you entered the commands exactly as shown.

• Ensure there is a space between cd and /usr/arc.

• Allow several minutes for the reset process to complete before attempting to reconnect.

• If the unit does not recover after the reset, contact Telos Alliance Technical Support for further assistance.