Dejavoo Z11 Memory Overflow Error: Diagnostic and... | terminalfaults.org

Technical Background:

Memory overflow errors typically indicate insufficient available RAM or storage to complete a process. This can stem from software bugs, corrupted data, or hardware limitations. In payment terminals, frequent transactions and security protocols can heavily utilize memory. ESD (electrostatic discharge) events can also corrupt memory contents, leading to errors.

Symptoms:

The Dejavoo Z11 displays a "Memory Overflow" error message on its screen, preventing normal transaction processing.

Possible Causes:

Software bug within the terminal's operating system or payment application.
Corrupted transaction log files exceeding allocated memory space.
Insufficient RAM to handle the volume of transactions.
Electrostatic discharge (ESD) events affecting memory modules.
Firmware corruption due to interrupted updates or power failures.
Memory leaks within the application causing gradual memory exhaustion.

Solution:

1

Perform a soft reset: Unplug the Dejavoo Z11 from its power source for 60 seconds, then reconnect. This clears the RAM.
2

Check for firmware updates: Ensure the terminal is running the latest firmware version. Contact your payment processor for update procedures.
3

Clear transaction logs: If possible through the terminal's menu (consult the manual), clear old transaction logs to free up storage space.
4

Inspect power supply: Verify the power adapter is functioning correctly and provides the correct voltage. A faulty power supply can cause memory instability.
5

Check peripheral connections: Ensure all connected peripherals (e.g., barcode scanner) are properly connected and not causing communication errors that consume memory.
6

Contact support: If the error persists, contact Dejavoo technical support or your payment processor for advanced diagnostics and potential hardware replacement.
7

External USB storage: If supported, external USB storage might alleviate internal memory strain (check device specs).

Safety Warning:

Safe Handling: Always unplug the terminal from its power source before cleaning or inspecting cables. Avoid using excessive force when connecting or disconnecting cables. Do not expose the terminal to liquids or excessive humidity. ESD (electrostatic discharge) can damage electronic components; ground yourself before handling the terminal, especially in dry environments.

Prevention:

Regularly clean the terminal's touchscreen and exterior with a dry, anti-static cloth. Ensure proper cable management to prevent strain on power and communication cables. Consider a surge protector to safeguard against power fluctuations. Minimize ESD risk by using anti-static mats, especially during dry winter months. Adhere to the manufacturer's recommended operating temperature range.

Expert Tip:

Try booting the terminal into its diagnostic mode (if available – consult the manual). This mode often provides memory usage statistics and error logs that can pinpoint the source of the overflow. Another potential quick fix is checking the communication baud rate settings if applicable; incorrect baud rates can lead to data corruption and memory errors.

Frequently Asked Questions

•What are the steps to clear transaction logs on a Dejavoo Z11?

Refer to the Dejavoo Z11 user manual for specific instructions on clearing transaction logs. The menu options and steps may vary depending on the firmware version.

•How do I update the firmware on my Dejavoo Z11?

Firmware updates are typically provided by your payment processor. Contact them for instructions and update files.

•What is the operating temperature range for the Dejavoo Z11?

Consult the Dejavoo Z11 product specifications for the recommended operating temperature range. Exceeding this range can lead to hardware malfunctions.

Dejavoo Z11 Memory Overflow Error: Diagnostic and Resolution

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What are the steps to clear transaction logs on a Dejavoo Z11?

•How do I update the firmware on my Dejavoo Z11?

•What is the operating temperature range for the Dejavoo Z11?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: