PAX A920 Hardware Failure Diagnostic Report - Solar Faults | terminalfaults.org

Technical Background:

The PAX A920 utilizes a secure processor for payment transactions and a separate application processor running Android. Hardware diagnostics accessible via the Android System Recovery typically address the application processor and associated peripherals (screen, printer). The secure processor's status is generally inaccessible from this menu due to security restrictions.

Symptoms:

Unspecified hardware failure reported. User attempting diagnostics via Android System Recovery menu.

Possible Causes:

Corrupted Android OS system.
Damaged touchscreen or display.
Faulty printer mechanism.
Low battery voltage or charging circuit malfunction.
Communication failure with external peripherals (e.g., PIN pad).
ESD damage to internal components.

Solution:

1

Safe Handling: Disconnect the PAX A920 from its power adapter.
2

Visually inspect the device for any physical damage (e.g., cracked screen, damaged ports).
3

Reconnect the power adapter and verify the device is charging. Allow sufficient charging time before proceeding.
4

Access the Android System Recovery menu (consult the PAX A920 service manual or manufacturer's documentation for specific key combinations).
5

Within the Android System Recovery menu, attempt 'Wipe cache partition'. This can resolve software-related issues without data loss.
6

If the issue persists, consider 'Factory data reset' from the Android System Recovery menu. Note: This will erase all data on the device. Back up data if possible before proceeding.
7

After a factory reset, if the hardware failure persists, the device likely requires licensed technician repair or replacement.

Safety Warning:

The PAX A920 is a PCI-PTS certified device. DO NOT attempt to open the device casing or remove any internal components. This will trigger anti-tamper mechanisms and permanently disable the device. Safe Handling: Always disconnect the device from its power source before performing any maintenance or inspection. Static discharge (ESD) can damage electronic components; ground yourself before handling the device.

Prevention:

Regularly clean the touchscreen with a soft, lint-free cloth.,Ensure the power adapter cable is free from strain and not bent at sharp angles.,Minimize exposure to extreme temperatures and humidity.,Implement ESD control measures, especially during dry winter months (e.g., anti-static mats).,Avoid placing heavy objects on the device or subjecting it to physical shocks.

Expert Tip:

If the device is unresponsive, try a simulated battery pull (holding the power button for an extended period – typically 15-30 seconds). This can sometimes reset the device without data loss. Document all troubleshooting steps and results for future reference.

Frequently Asked Questions

•What are the specific key combinations to enter Android System Recovery mode on the PAX A920?

Consult the official PAX A920 service manual or contact PAX support for the correct key combinations. These vary depending on the firmware version.

•What data should I back up before performing a factory reset?

Back up any custom applications, configuration settings, and transaction logs that are not automatically synchronized with a cloud service.

•Where can I find a certified PAX repair technician in my region?

Contact PAX directly or consult their website for a list of authorized service providers.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What are the specific key combinations to enter Android System Recovery mode on the PAX A920?

•What data should I back up before performing a factory reset?

•Where can I find a certified PAX repair technician in my region?

Related questions

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Symptoms:

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Solution:

Safety Warning:

Prevention:

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