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call_us_teal call_us_white carousel_button_pause carousel_button_play check_blue check_white checkmark_circle_blue chevron_down_grey chevron_down_normal chevron_down_normal_black chevron_down_normal_dark_blue chevron_down_normal_hover_teal chevron_left_bold_dark_blue chevron_left_normal_black chevron_left_normal_white chevron_right_bold_dark_blue chevron_right_normal_black chevron_right_normal_white chevron_right_skinny chevron_up_normal chevron_up_normal_black chevron_up_normal_dark_blue chevron_up_normal_hover_teal circle_1_grey circle_1_teal circle_2_grey circle_2_teal circle_3_grey circle_3_teal clock_black close_x close_x_dark_blue close_x_hover_teal divot_down divot_left divot_left_outline divot_up email_receipts extra_location icon_fraud icon_fraud extra_register extra_users extra_users facebook flag_canada flag_usa form_checkmark form_checkmark_teal form_error_arrow_up google_plus innovation_api innovation_chip innovation_ecommerce innovation_hosted_pay_page 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Verifone Unresponsive Device due to Certificate Expiry – 6/24/2019

Current Verifone terminals have a digital certificate that will expire June 25, 2019. This impacts Vx520 and Vx820 terminals. When this certificate expires, the terminal may not function properly. To remedy this, please follow the instructions below to update the certificate and continue processing.

Stop the Terminal from Rebooting:

Important: You must have the terminal password on hand to complete this process. You will need to enter it in step one. (NOTE: The default password is ‘166831’. If the password has been changed or your do not know it, please contact Moneris Customer Service at 1-866-319-7450 or your internal helpdesk.)


  1. From the Verifone Copyright screen, press Enter + 7 at the same to bring up the password screen.
  2. Enter the password. Press Enter when finished entering the password.

  3. NOTE: The password must be entered promptly. If it is not, the device will continue to reboot. When entering your password, you must wait for the corresponding asterisk * for each key entry to appear on the screen. If you type the password in too quickly you will not be able to log in.


  4. Select 2> Edit Parameters
  5. Where the screen says Group ID: 1, Press the Enter key
  6. Enter the password for Group 1 and press Enter.
  7. Where the screen says File: Config.SYS, press Enter.
  8. Press the 1>New key to create a new parameter.
  9. For the new parameter, enter *DHEAP
  10. Press 0 for the new Value. Press Enter to save the new parameter.
  11. Once the parameter has been entered, press the red X (cancel button) several times until you get to the Verix Terminal MGR screen. Once there, select Restart.
  12. The device should reboot and start to function normally.

If your device stops rebooting, and stops loading VMAC after setting *DHEAP=0 follow these instructions:


  • Follow the same steps above and instead of setting *DHEAP=0, set *DHEAP=2. This changes the way that memory is allocated and should allow your device to boot past VMAC and restore all functionality.

Updating the Certificate:

Dial Communication:

Contact Moneris Customer Service at 1-866-319-7450 for support.

IP Communication:

First, make sure you know the Terminal ID of the device, this can be found on a sticker on the back or the side of the terminal.


If the terminal is in a Debit/Credit or Fleet app, press the * key to return to the VMAC menu.


  1. Confirm VMAC appears at the top of the screen.
  2. Press the 9 key.
  3. Press the soft down arrow key in the bottom left corner of the screen.
  4. Select Settings.
  5. Type the EMA password 123456 and press OK.
  6. Select VC Profile.
  7. Press Next until you see Terminal ID (the terminal ID should be on a sticker on the back, or side of the terminal).
  8. Press Edit and type in the terminal ID.
  9. Press OK.
  10. Press exit.
  11. Press the OK soft key to save.
  12. Press the Red Key to go back.
  13. Select Update Now. The terminal will request updates, begin downloading applications, reboot and install.

Integrated Pinpad:

Contact your integrator to install an update.