The Device Hangs on the Nayax Screen During Power-Up
A device that stops on the Nayax logo during power-up has a communication problem. Any of the following can cause it:- Modem connection. Poor cellular reception, or a poor Ethernet connection if the device is wired.
- Wrong modem type. For example, a European modem used in the United States, or a modem too weak for the location.
- SIM card. The SIM is missing, unsupported (such as a SIM bought outside of Nayax), or has used up its data.
- Antenna. The antenna is loose, wrapped around itself, pointing downward, or sitting against a metal enclosure.
- Power supply. If the device reaches the Nayax logo and then crashes, confirm the power source delivers 24V at a minimum of 1.5A. See Marshall Hardware Specifications.
The Device Is in Cash Only Mode
If the device is connected to the Marshall cable but still runs in Cash Only mode, the serial connection is not reaching the board. Check which COM port is connected to your board. It must be COM2, as described in Installation Steps. If you use a Chipi-X USB-to-serial adapter, check whether it is connected through a hub. Connect it directly to the PC instead.The Chipi-X is the only USB-to-serial adapter that grants support privileges.
Other adapters may work, but Nayax support does not cover them.
Everything Is Connected but Nothing Works
When the wiring and the device both look correct and the integration still does not run, work through these checks in order.1
Check the Nayax Core Parameters
Confirm the machine parameters in Nayax Core match your setup. See
Set Up Nayax Core for Marshall Integration.
2
Check the Physical Connection
Confirm the wiring matches
Installation Steps.
3
Reboot the Device
Disconnect the device from power, wait for the screen to go black, then
power it back on.
4
Check the COM Port in Your Code
Confirm the SDK code points at the correct COM port.
5
Compile and Run the SDK
Two things confirm the link is up: the peripheral simulator’s menu and
pairing process appear in the prompt window, and the log file shows the
pairing process finished successfully.
The SIM Card Is Not Working
Whether a SIM is recognized depends on the APN addresses stored on the device. A SIM whose APN is not on the device does not work. If a SIM has a problem, whether it shipped with the device or was bought from Nayax separately, contact the support team at support@nayax.com.Next steps
Stability & Starvation Issues
Diagnose the hardware causes behind an unstable or starved Marshall link.
SDK's Log Generation
Turn on SDK logging and find the log file to inspect peripheral traffic.