Version 1: (cannot transact on WiFi)

When logging in on your MiniPOS or PrintPOS device and the following error message pops up "Parameter download unsuccessful", it means that the Wifi on the device is turned on 

Solution: Turn Wifi off and press Login again

Version 2: (Can transact on Wifi & Sim Cards)

"Parameter download unsuccessful " can mean there is a signal issue. Please try the steps in this article to resolve the signal error: https://helpdesk.wappoint.co.za/knowledgebase.php?article=137