The current supplied by G-Telware Adapter works very well, even in the iPhone 6 Plus. Two things to note: 1. The recording of the second SIM card (outside of the cell phone) has not the same size as the inclusion of nano-map (1.Sim card). This can be an advantage if one still has an "old" map = normal map from the old phone. Otherwise, an adapter for the Nano-card is needed or the card may not be broken. This adapter does not belong to delivery automatically. The envelope is included. 2. Both cards can not be operated simultaneously. It must first be always switched so that the other card is active. Otherwise comes Station communication. With call forwarding if not accessible but that is to be possible, we would almost always under two SIM cards, no matter which card you have switched to reach! I myself have not yet been verified. I am very pleased. Thanks!