Make sure to choose a scanner that works on Bluetooth, Not WiFi. The reason is that the Wifi Connected ones require you to disconnect from whatever wifi connection that you're one and connect to the scanner. When that is done, you can't connect to the internet from the phone because the phones are set to use wifi instead of the phone data when it senses a connection. I use an iOS app called OBD Fusion which allows you to scan the vehicle and if you have internet, it will go online and get info regarding the codes that you got, but can't if you're connected on wifi to your scanner.