To use a new sim card please follow these instructions: Wirelessly connected to PC or laptop, go to web address 192.168.0.1 and log in with password: admin
You are now in the landings-page of the Hotspot. Under Home, make sure you are disconnected from Internet. (Click disconnect. You are disconnected when it displays CONNECT). Go to Settings>Network Settings>APN – tick Auto and save. The Hotspot will now automatically adjust its settings to your new sim card. If the Hotspot does not recognize your new sim, tick Manual>add new> enter Name of new sim>leave username and password open if not specified by the sim card provider>enter APN>save>tick triangle behind Profile Name and select the new sim’s name/profile>set as default>log out.