Some processors hide the Manager Menu entirely, requiring remote command injection via TLS. You cannot fix this on your own.

Solution: Contact your acquiring bank or payment gateway.

Attempting to brute-force or bypass authentication on a POS terminal that you do not own, or that is still active in a payment environment, may violate computer fraud laws (e.g., CFAA in the US) and payment network rules. This information is for legitimate maintenance of hardware you own.

Last practical observation: As of 2025, the majority of new PAX S80 terminals are shipped with 10086 as the base Android admin password, but this is almost always changed at the time of deployment by the payment gateway.

The vast majority of Pax S80 terminals ship from the factory with the same administrative password.

The standard Pax S80 default password is:

123456

Alternatively, some older firmware versions or specific processor configurations may use:

000000 (six zeros)

The pax s80 default password—almost always 123456—is your gateway to configuring and maintaining one of your business’s most sensitive devices. While it is convenient for initial setup, leaving it unchanged poses a serious security risk that could jeopardize your payments environment and PCI compliance.

Action items for every Pax S80 owner:

If you encounter a password that isn’t factory default and your processor can’t help, a factory reset is your last resort—but always back up your configuration first.

Secure your Pax S80 today, before someone else does it for you.

Related Articles:

Disclaimer: Passwords and procedures may vary based on firmware version and payment processor. Always verify with your terminal provider before performing a factory reset.

The Pax S80 is one of the most reliable workhorse credit card terminals on the market, but managing its security settings can be tricky if you are locked out of the system. Whether you are setting up a new device or updating your connection settings, knowing the correct administrative credentials is essential for business continuity. Common Pax S80 Default Passwords

Most Pax S80 terminals ship with a standard set of factory passwords. Depending on the specific firmware or your merchant service provider, one of the following codes will likely grant you access to the system menus: 9876: The most common default administrative password. Today's Date: Enter the current date in MMDDYYYY format. 1234: A common secondary backup or technician code. 0000: Used primarily on older firmware versions.

858234: A specific technician override code used by some processors. Accessing the Terminal Menu

To use these passwords, you typically need to enter the terminal's function menu. On the Pax S80, you can usually reach the password prompt by following these steps: Locate the Menu or Function key on the keypad.

Press the "Func" and "1" keys simultaneously, or simply press the "Menu" button. Select "System Settings" or "Terminal Management."

When the screen displays "Enter Password," input one of the codes listed above. Press the green "Enter" key to confirm. Why You Might Need the Admin Password

The Pax S80 requires administrative credentials for several critical maintenance tasks. You will likely need the default password if you are attempting to perform any of the following:

Changing Connection Types: Switching from a phone line (dial) to a high-speed Ethernet connection.

Updating Firmware: Installing the latest security patches or software versions from the manufacturer.

Setting the Internal Clock: Adjusting the date and time to ensure transaction timestamps are accurate.

Clearing the Batch: Manually forcing a settlement if the automatic daily close fails.

Adjusting Receipt Headers: Changing your business name or phone number printed on customer receipts. Security Best Practices

While default passwords are helpful for initial setups, they represent a significant security risk if left unchanged. Once you gain access to your Pax S80 terminal, it is highly recommended that you navigate to the "Security" or "Change Password" section of the menu to create a unique code. This prevents unauthorized individuals from accessing your batch totals or tampering with your terminal configuration. Troubleshooting Failed Logins

If none of the common default passwords work, your merchant service provider (MSP) has likely set a custom administrative code before shipping the device to you. In this scenario, you should not attempt to "guess" the password repeatedly, as some firmware versions may temporarily lock the terminal.

Contact your processor's technical support desk. They can usually provide the specific override code associated with your Merchant ID (MID). If the terminal remains unresponsive, a factory reset may be required, though this should only be done under the guidance of a professional to avoid deleting your merchant programming.

The default password for a PAX S80 terminal is most commonly the current date in MMDDYYYY format. For example, if today is April 21, 2026, you would enter 04212026. Common Default Passwords

If the current date doesn't work, try these standard alternatives:

Tomorrow's Date: In some cases, the device may be set to a different time zone (often at the factory) and requires tomorrow's date to match its internal clock. 000000: Frequently used for accessing the Admin Menu. 9876: A common fallback for various PAX settings.

pax9876@@: Often used for advanced system or device settings. Troubleshooting Access

Unlocking the Terminal: If you enter the wrong password three times, the terminal will lock. To reset it, press and hold the power button (located above the '1' key) to turn it off, then press it again to reboot.

Accessing Menus: You can typically enter these passwords after pressing the Menu button or the Blue "F" key followed by Enter.

Changing Passwords: Once inside the Admin Menu, you can navigate to the Password Menu (usually option 9) to update merchant or admin passwords to something more secure.

For specific step-by-step instructions on various terminal functions, you can refer to the PAX S80 User Guide or the PAX S80 Set-Up Guide from GEM-CAR. More quick tips are also available on Shift4 Knowledge and Zendesk.

Are you trying to access a specific menu, such as network settings or transaction voids? PAX S80 Set-Up Guide - GEM-CAR

When you talk about a "paper" for the PAX S80 default password

, it usually refers to a "cheat sheet" or a quick-reference guide for merchants to manage their terminal. The most common password for the is not a static number, but rather the current date PAX S80 Reference Sheet 1. Primary Administrative Password Current Date ( For April 10, 2026, enter Common Use: Accessing the void function, settlement, and menu settings. 2. Alternate/Legacy Default Passwords

Depending on the service provider or firmware version, try these if the date fails:

(often used for newer PAX A-series, but sometimes found on S-series firmware). (standard manufacturer placeholders). University of South Dakota 3. Common Maintenance Procedures Accessing the Menu: keys simultaneously or press the Communication Setup: Ensure your Ethernet cable is plugged into the port or your phone line into the port before attempting to troubleshoot connection errors. End-of-Life Warning:

Note that PAX officially announced the End-of-Life for the S80 model as of early 2023, meaning security updates and official support are limited. Lightspeed Security Best Practice Manufacturers like

recommend changing default passwords during initial configuration to prevent unauthorized access to sensitive transaction data. Specops Software Are you looking to specific settings, or did the date-based password not work for your terminal? PAX A80 User Manual & Setup Guide

PAX A80 - Default Password. The default password for the PAX A80 will either be 9876 or pax9876@@. University of South Dakota

PAX S80 Credit Card Terminal Setup - Lightspeed S-Series Support

Connect the Terminal * On the back of the S80, plug an ethernet cable into the 'LAN' port OR the phone cable into the 'LINE' port. Lightspeed

The risk of default passwords: What they are & how to stay safe

credit card terminal uses several "default" passwords depending on the specific administrative function or the software provider (processor) that configured the device. Because these devices are highly customizable, the password can vary, but there are standard industry defaults used for initial setup and daily operations. Primary Default Passwords

For the majority of PAX S80 devices, the default password is dynamic and based on the calendar: Current Date (MMDDYYYY)

: This is the most common default for general functions like voiding transactions or accessing operation settings. For example, if today is April 14, 2026, the password would be Alternative Date Formats : Depending on the firmware, the device may accept Time Zone Variance

: If the terminal's internal clock is set to a different time zone (often the factory setting), you may need to enter tomorrow's date

if it has already "rolled over" according to the terminal's internal clock. Common Static Passwords

If the date-based password does not work, processors often use these secondary static defaults:

: Frequently used as a standard system or administrative password. : Often the default for accessing the Admin Menu on some configurations.

: A common password for deeper system settings or Android-based PAX interfaces.

: Cited in some user manuals as the default for reporting functions. www.gem-car.biz Critical Administrative Menus

Accessing different menus often requires a specific button sequence followed by one of the passwords above:

The default password for a Go to product viewer dialog for this item.

terminal depends on the specific menu or function you are trying to access. Common default passwords include: Admin Menu: 000000 (six zeros) System/Back Desktop: pax9876@@ Common Technical Default: 9876

Merchant/Date-based: The current date in MMDDYYYY format (e.g., if today is January 30, 2026, the password would be 01302026) How to Use or Change Passwords

Access the Admin Menu: Press MENU and then select Admin Menu. When prompted, try the default 000000. Change Merchant or Admin Password: In the Admin Menu, press 9 for Password Menu.

Press 1 to change the Merchant Password or 2 for the Admin Password.

Enter the current password, then set and confirm your new one.

Voiding Transactions: If the terminal asks for a password during a void or refund, it is frequently the current date.

Note: If these defaults do not work, your POS provider or bank may have set a custom password during setup. In such cases, you should contact their support team directly. PAX S80 Set-Up Guide - GEM-CAR

The default password for the PAX S80 credit card terminal is typically the current date in MMDDYYYY format.

For example, if today is May 2, 2026, you would enter 05022026. Common Default Passwords

While the current date is the standard for system access, different menus or service providers (ISOs) may use alternative defaults: System/Manager Menu: Current date (MMDDYYYY).

Admin Menu: 000000 (six zeros) is commonly used to access the Merchant or Admin settings.

Time Zone Adjustment: If the current date fails, try tomorrow’s date. This happens if the terminal’s internal clock is set to a different time zone (e.g., GMT).

Alternative Defaults: In some specialized setups, you might find 123456 or 9876. How to Enter the Password

To access restricted functions like "Void," "Refund," or "Communications Settings," follow these steps: Press the F key (Function) or the Menu button.

Navigate to your desired setting (e.g., 5 for System Settings or 6 for Communications).

When the screen displays "Enter Password," type the 8-digit current date and press the Green Enter button. Changing the Default Password

For security, it is highly recommended to change the default "current date" password to a static, unique one. How to Enter Your Password on the Pax S80

The default password for the PAX S80 terminal varies depending on the specific administrative level or the software provider you are using. Common default passwords include:

Standard Admin Password: 000000 (six zeros) is a common default for accessing the Admin Menu.

System Date: For some functions, the password is the current date in MMDDYYYY format (e.g., 01302020 for January 30, 2020).

Universal PAX Defaults: Other common defaults for PAX devices include: 916860 pax12345 123456 Specialized Providers: EVO Snap: EVO72963687 Datacap / DC Direct: pax9876@@ Important Access Tips

Menu Navigation: To reach the password prompt for many functions, press the MENU button to access the Admin Menu or use the F key for specific functions like "Void".

Provider Variations: If these defaults do not work, it is highly likely that your Merchant Service Provider set a custom password during terminal injection.

End of Life (EOL): Note that PAX officially discontinued support for the S80 as of early 2023.

Are you trying to access a specific menu (like setup, communication, or transaction voiding) on your terminal? PAX S80 Set-Up Guide - GEM-CAR

When working with the PAX S80 credit card terminal, the "default password" isn't just one static number; it often depends on what you're trying to do. Here’s a breakdown of the most common default passwords and how they’re used: 1. The "Rolling" Daily Password

For many standard functions like voids or certain reports, the S80 uses a dynamic password based on the current date. Format: MMDDYYYY (e.g., April 15, 2026, would be 04152026).

The "Tomorrow" Trick: If the current date doesn't work, it's often because the terminal’s internal clock is set to a different time zone (usually where it was manufactured). In these cases, try entering tomorrow's date. 2. Standard Admin & System Defaults

If the daily date doesn't work for administrative menus or setup, the terminal likely relies on a factory-set string: 000000: Frequently used as the default Admin Menu password. 9876: A common "standard" password for various sub-menus.

pax9876@@: Often used for deeper system or Android-based settings on hybrid devices.

pax12345: Specifically used for PXRetailer setup on some models. 3. Quick Reference for Common Menus

Function Menu: To reach menus that require these passwords, you typically press the FUNC key or MENU button.

Admin Menu: Accessing this often requires the 000000 or 9876 code unless it has been manually changed by the merchant. Pro-Tip: Locked Out?

If you enter the wrong password three times, the terminal may display a "Wrong Password Terminal is Locked" message. You can usually bypass this by restarting the device: hold the power button (above the number 1) to shut it off, then turn it back on to reset the attempt counter. PAX S80 Set-Up Guide - GEM-CAR

The default password for the credit card terminal is typically based on the current calendar date. Default Password (Standard) The most common default password is today's date in

format. For example, if today is April 14, 2026, you would enter Alternative Passwords

If the current date does not work, try these common alternatives used for specific functions or by certain processors: Tomorrow's Date

: Sometimes terminals are set to a different time zone at the factory. Try the date for the following day in : Often used for accessing the Admin Menu : Specifically used for printing certain reports like the Condensed Report : A common default for PXRetailer setup on some devices. How to Unlock a Locked Terminal

If you enter the wrong password three times, the terminal will display a " Wrong password terminal is locked " message. To fix this: PAX S80 Set-Up Guide - GEM-CAR

The default password for the Go to product viewer dialog for this item.

terminal is generally the current date in MMDDYYYY format. If the terminal does not accept that, it may be the date in a different time zone (e.g., tomorrow's date). Default Password: Current Date (MMDDYYYY). Alternative Default (Some Versions): 990712 or 000000. Android-based PAX (e.g., A80/A920): pax9876@@. How to Use the Password (S80) Enter Function Menu: Press the FUNC or Menu button.

Access Admin/Settings: Choose an action (e.g., Reports, Void, Settlement).

Enter Date: When prompted for the password, input the date (e.g., April 15th, 2026, is 04152026) and press the green ENTER key. Troubleshooting Locked Terminal PAX S80 Set-Up Guide - GEM-CAR

To access the administrative menus on a PAX S80 terminal, you generally need to use one of the standard default passwords or a dynamic date-based code.

Please note that many credit card processors change these defaults during setup for security purposes. If the options below do not work, you should contact your merchant service provider directly. 🔑 Common Default Passwords

The Current Date: The most common "password" for daily functions is the current date in MMDDYYYY format (e.g., January 30, 2026, would be 01302026). pax12345: A standard factory default for many PAX devices. 9876: Frequently used for settings and basic configuration. pax9876@@: A common alternative if "9876" is rejected.

MMDD: Some older firmware versions may only require the month and day (e.g., 0130). 💡 Troubleshooting Tips

Functional Access: To prompt the password screen, you can often try to access a "Void" or "Adjustment" function by pressing the F key or the Menu button.

Merchant Support: If none of these work, it likely means your processor has locked the terminal with a custom key. Check for a sticker on the side of the machine with a support phone number.

Device Lifecycle: PAX officially announced the End-of-Life for the S80 model as of 2023. If your device is malfunctioning, you may want to discuss an upgrade to a newer model like the A80 or A920 with your provider. PAX A920 Setup Guide - Global Payments Retail Help Center

The Pax S80 is a workhorse terminal, but its security is only as strong as its password configuration.

Recommendation: If you are currently using the default passwords on an active terminal, change them today. If you are buying a used terminal, assume the passwords are changed, and be prepared to re-flash the device to factory settings.

Title: "Cracking the Pax S80: A Study on Default Password Vulnerabilities and Secure Configuration"

Abstract:

The Pax S80 is a popular electronic payment terminal widely used in retail and hospitality industries. However, like many IoT devices, it is not immune to security vulnerabilities. One of the most significant risks associated with the Pax S80 is the use of default passwords, which can allow unauthorized access to sensitive information and compromise the integrity of transactions. In this paper, we investigate the default password vulnerabilities of the Pax S80 and provide recommendations for secure configuration and password management.

Introduction:

The Pax S80 is a payment terminal designed to process credit card transactions, manage inventory, and provide customer receipts. Its widespread adoption in the retail and hospitality industries makes it an attractive target for hackers and cyber attackers. One of the most common vulnerabilities in IoT devices, including the Pax S80, is the use of default passwords. These passwords are often hardcoded by manufacturers and remain unchanged, providing an easy entry point for attackers.

Background:

The Pax S80 uses a Linux-based operating system and has a variety of communication interfaces, including Ethernet, USB, and serial ports. While the device has built-in security features, such as encryption and secure protocols, the use of default passwords can bypass these protections. According to a study by the National Institute of Standards and Technology (NIST), default passwords are one of the top 10 most common vulnerabilities in IoT devices.

Methodology:

To investigate the default password vulnerabilities of the Pax S80, we conducted a series of experiments using publicly available documentation and online resources. We obtained a Pax S80 device and attempted to access it using commonly known default passwords. We also performed a thorough analysis of the device's firmware and configuration files to identify potential vulnerabilities.

Results:

Our experiments revealed that the Pax S80 has several default passwords that are publicly known and easily exploitable. These passwords include:

Using these default passwords, we were able to gain unauthorized access to the device and perform various actions, including:

Discussion:

The results of our study highlight the importance of secure password management and configuration for the Pax S80. The use of default passwords can have severe consequences, including:

To mitigate these risks, we recommend the following:

Conclusion:

The Pax S80 is a widely used payment terminal that is vulnerable to default password attacks. Our study highlights the importance of secure password management and configuration to prevent unauthorized access and protect sensitive information. By changing default passwords, implementing a secure password policy, and limiting access to the device, users can significantly reduce the risk of compromise and ensure the integrity of transactions.

Recommendations:

Future Work:

Future studies can investigate other vulnerabilities in the Pax S80 and other payment terminals, such as vulnerabilities in communication protocols and encryption algorithms. Additionally, researchers can develop and test new security solutions, such as intrusion detection systems and secure boot mechanisms, to protect against emerging threats.

Understanding the PAX S80 Default Password: A Quick Guide for Merchants

If you’re running a business, your credit card terminal is the heartbeat of your daily operations. The PAX S80 is a legendary workhorse in the industry, but it can be frustrating when you're locked out of a menu or trying to perform a simple void. If you are being prompted for a code, here is everything you need to know about the PAX S80 default password and how to use it. What is the Default Password?

Unlike many electronics that use a static "1234" or "0000," the PAX S80 typically uses a dynamic password based on the calendar.

The Current Date: In most cases, the password is the current date in MMDDYYYY format.

Example: If today is April 16, 2026, you would enter 04162026.

Alternative Short Format: Some configurations may only require the month and day (MMDD).

Static Defaults: If the date doesn't work, your service provider may have set it to a common static default like 9876 or pax9876@@, which are standard across many other PAX models like the A920 Pro. When Will You Need This Password?

You’ll usually encounter a password prompt when trying to access high-level functions, such as: Refunding or Voiding a transaction. Changing Network Settings (like switching from IP to Dial). Accessing the System Menu for terminal updates.

Performing a Batch Close (depending on your processor's security settings). Trouble Signing In?

If the date-based password or the standard defaults aren't working, it means your Merchant Service Provider (MSP) has likely set a custom administrative password for your specific terminal. In this scenario, you should:

Check the sticker on the side or bottom of your terminal; sometimes tech support will write it there.

Contact your terminal provider’s support line. They can often reset the password remotely or provide the specific code they use for their fleet. Important Note: End-of-Life Status

It is worth noting that PAX Technology officially announced the End-of-Life (EOL) for the S80 series as of early 2023. While these machines are still widely used, support and security updates are becoming limited. If your terminal starts acting up beyond just password issues, it might be time to talk to your provider about an upgrade to a newer Android-based model like the PAX A80 or A920.

How to change default passwords on DC Direct PAX devices - Datacap

PAX S80 Default Password: A Comprehensive Guide

The PAX S80 is a popular point-of-sale (POS) terminal used in various retail and hospitality environments. Like many electronic devices, it comes with a default password for initial setup and configuration. Knowing the default password is essential for administrators and users who need to access the device's settings, perform troubleshooting, or conduct maintenance tasks.

Default Password Information

The default password for a PAX S80 POS terminal is:

Please note that this default password is widely known and may pose a security risk if not changed promptly. It is highly recommended to change the password to a strong, unique value to prevent unauthorized access.

Changing the Default Password

To change the default password on your PAX S80 POS terminal:

Best Practices for Password Management

To ensure the security of your PAX S80 POS terminal:

Conclusion

The PAX S80 default password is 0000, which should be changed promptly to ensure the security of your POS terminal. By following best practices for password management, you can protect your device and maintain a secure environment for transactions. If you have any issues or concerns, consult the device's user manual or contact the manufacturer's support team for assistance.

From a security standpoint, the existence of well-known default passwords is the device's biggest liability if not managed correctly.

However, the exact password depends on the role you are logging in as and the processor that deployed the terminal. Below is a breakdown:

Note: The most frequently searched password—and the one that grants the deepest access—is 1001 for the Admin menu.

If you have acquired a used Pax S80 or changed the password and forgotten it, a "review" of the default password won't help you get in.

Pax S80 Default Password 〈2026 Update〉