Install Firmware Updates on Your Elo Devices

 

Elo V2 / Elo V3: Enable External Storage Permissions

Before getting started, follow the steps below to enable external storage permissions for firmware updates:

• Elo V2 devices (firmware 3.*)
• Elo V3 devices on older firmware versions

 

Steps:

1. Navigate to Settings > Apps & Notifications > Toast POS > Permissions.
2. Confirm permissions are enabled for:
   • Location
   • Phone
   • Storage
3. Retry the firmware update when prompted:
   • If delayed, it will prompt again after eight hours.
   • Logging out and back in may trigger the update.
   • You can also manually trigger updates using the on-screen guidance.

 

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Elo V2 / Elo V3: Install a Firmware Over-the-Air Update

1. After entering your passcode on the Toast screen, the Required Update prompt displays.
2. When prompted, choose one:
   • No Action - Update starts automatically after countdown
   • Install Update / Update Now - Starts immediately
   • Delay Update - Postpone (1 hour, 8 hours, 1 day, or until required)
3. For some devices on older builds, you may be prompted to install a support application:
   • Follow the on-screen steps to install and proceed.
4. The firmware installation begins:
   • Do not unplug the device during installation.
   • Device will reboot when complete.
   • Launch Toast POS after reboot.

 

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Factory Reset Guidance for Elo V3 Devices

Factory-resetting certain Elo V3 devices can cause device setup failure and prevent payments.

If an Elo V3 device is NOT on the latest firmware (e.g., versions like 4.50.540120051+a, 4.50.54+a) and is factory reset:

• Setup will fail
• Guardian will not be installed
• Device will not be able to take payments

 

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Prevent Device Issues

Before performing a factory reset on an Elo V3 device:

• Confirm device is on:
  • 4.5001.5401259+a (ends in 59+a)
• OR manually update to this version first

 

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Recover a Broken Elo Device

If this scenario occurs:

1. Complete device setup without Guardian.
2. Manually download Toast Mobile via web.
3. Perform an OTA update to:
   • 4.5001.5401259+a (ends in 59+a)
4. Perform another factory reset.
5. Complete setup again; Toast Guardian will install correctly.

 

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Safe Factory Reset Conditions

It is only safe to factory reset when:

• Elo V2 device (firmware 3.*)
  • Note: When possible, upgrade your V2 to V3.

OR

 

• Elo V3 device already on firmware 4.5001.5401259+a (ends in 59+a)

 

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