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Enabling P2PE on Debug Devices

The Finix Device Reader SDK uses point-to-point encryption (P2PE), so every device must have an encryption key injected before it can process transactions. Production devices receive this key automatically over the air. Debug devices, however, require manual key injection using the steps below.

The screenshots in this guide were taken on a PAX A800, but the process is identical across all supported PAX models.

Step 1: Open the Settings App

From the home screen, locate and open the Settings app. You may be prompted for a passcode. Each PAX model uses a different passcode, so try the following combinations, in order, until one works:

PasscodeNotes
Pax9876@@
pax9876@@Most common
9876@@
9876
PAX home screen with Settings app

Step 2: Open Security Settings

Scroll down the Settings page and select Security.

PAX A800 Settings page with Security option highlighted

Step 3: Start RKI Download

Select RKI Download.

PAX A800 Security page with RKI Download option

Step 4: Select Key Injection

On the RKI screen, select Key Injection.

PAX A800 RKI screen with Key Injection option

Step 5: Select Internal PED

When prompted to select a pinpad, choose 1. InternalPED.

PAX A800 pinpad selection screen showing InternalPED option

Step 6: Enter the Connection Details and Start the Injection

Enter the following connection details, then select Start Key Injection:

FieldValue
Hostrkilt.pax.us
Port33619
PAX A800 RKI connection details entry screen

Step 7: Confirm Success

If the key is injected correctly, a Download Success! screen appears. If you do not see this confirmation, contact customer support for assistance.

PAX A800 RKI Download Success confirmation screen