The menu does not open automatically; you must go back one screen to find it.
The Verifone X990 is a powerhouse in the world of payment terminals. Running on a Linux-based operating system and featuring a sleek touchscreen interface, it is a staple for merchants worldwide. However, whether you are a software developer integrating a new payment application, a field technician troubleshooting connectivity issues, or an advanced user looking to customize your device, you will eventually need access to the "backstage" of the system: the Developer Options. How to open Developer Options in VERIFONE X990
section seven times in quick succession. You may see a countdown message like "You are now X steps away from being a developer". Confirm Identity : If prompted, enter your device password or PIN. The menu does not open automatically; you must
After a few taps, a toast notification will appear saying, "You are now X steps away from being a developer." However, whether you are a software developer integrating