---
title: "Updating LA-5300, LA-5291, and UPMAX ISC"
slug: "la-nga-units-installing-software-updates"
tags: ["LA-5300", "Linear Acoustic LA-5300", "LA-5291", "Linear Acoustic LA-5291", "UPMAX ISC", "Linear Acoustic UPMAX ISC", "Software Update"]
updated: 2026-09-22T19:03:50Z
published: 2026-09-22T19:03:50Z
canonical: "docs.telosalliance.com/la-nga-units-installing-software-updates"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Updating LA-5300, LA-5291, and UPMAX ISC

> [!WARNING]
> **Warning!**
> 
> Updating the software in your unit **WILL** interrupt audio and all processing. Ensure the unit is not in the critical air chain when you perform an update. An update that includes firmware can take 20+ minutes to complete and requires a manual powercycle of the unit signaled by a message in the front panel display.

## Scope

This document provides instruction on updating the operating software in the Linear Acoustic LA-5300, LA-5291, and UPMAX ISC.

## About Software Updates

**Things Required To Perform The Update:**

- Appropriate software update file
- Computer used to control the unit via a web browser (Chrome or Safari are recommended)
- Physical access to the unit, in case a power cycle is required

**Time Required:** This update may take anywhere between a few minutes and approximately 30 minutes

## Procedure

1) Back up your unit and all presets, ensure you have physical access to the unit in case a power cycle is required

2) Download the new software file to your computer. The file will have a *.pkg filename extension and will have a filename similar to:

- 1601-00583-001-x86-dolby-5300.1.0.272b
- 1601-00582-001-x86-dolby-5291.1.0.229
- 1601-00584-001-x86-dolby-UPMX.1.0.250

> [!NOTE]
> Note: The way to identify which product your file is for is shown below:
> 
> 
> 
> ![Product name and version number highlighted in the software identification string.](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/2025-06-09_15-50-01.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A14%3A44Z&se=2026-11-12T12%3A14%3A44Z&sr=c&sp=r&sig=pOTOlvtUYkvyhnGM8JZcilMQgIhgXzQgALC56LoL22c%3D)

Using a web browser (Chrome or Safari are recommended), connect to the unit.

- Navigate to the System Page
- Save the System preset and Export it to your computer
- Repeat for I/O and any other configuration pages.
- write down the current Nielsen and/or Verance codes and Check Digits for each processing block in an LA-5300
- These will need to be restored manually after the update process

3) Navigate to the **System** Menu

![LA-5300 device settings showing system menu and power supply status information.](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/NGA UI SW Updates - 07a.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A14%3A44Z&se=2026-11-12T12%3A14%3A44Z&sr=c&sp=r&sig=pOTOlvtUYkvyhnGM8JZcilMQgIhgXzQgALC56LoL22c%3D)

4) Under the “**Software**” section, click on the the “**Upload**” control for the inactive Software Bank, and upload the software file from your computer

![Software management interface showing active and inactive software banks with warning message.](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/NGA UI SW Updates - 07b.png?sv=2026-02-06&spr=https&st=2026-11-12T11%3A14%3A44Z&se=2026-11-12T12%3A14%3A44Z&sr=c&sp=r&sig=pOTOlvtUYkvyhnGM8JZcilMQgIhgXzQgALC56LoL22c%3D)

5) once the new software file is successfully loaded, press the “**Select**” button for that Software Bank, and “**Select**” again in the popup menu to install the update

> If the unit reboots and the UI automatically reconnects within a minute, the new software is installed
> 
> If the UI does not automatically reconnect in approximately one minute, an FPGA update is being performed. This process will take approximately 20 minutes. Monitor the unit’s front panel display to track the progress of the FPGA update. Once the FPGA is updated, you will be instructed to power cycle the unit.

6) It is recommended to power cycle the unit, perform a factory reset, and restore your routing and processing presets and any other reconfiguration that is required

## Let us know how we can help

If we can be of further assistance please reach out to us directly or click the **Request Support** at the top of this page