For some devices you don’t need any requirements. This often happens with Apple iPhones factory carrier unlock service and Samsung, LG, Motorola and other android device usually which asks for unlock code. For such device you just need to place your order with your device IMEI number and all the rest can be done online. Either your device will automatically unlock using Over The Air process mostly for Apple iPhones or you will get unlock codes which you need to input in your device.
But for the device which needs remote unlocking process or unlock by USB method. For such device unlocking you need a Windows computer, Stable internet connections and USB cable to connect the device with computer for remote unlocking.
We have also mentioned the requirements on every service page.