2. As long as you bought the iPhone7/plus from China Mobile Unicom and China Netcom through regular channels, the baseband versions are all Qualcomm baseband, and there is no so-called Intel baseband on the Internet.
At present, Qualcomm baseband ranks first in the industry and has applied for many patents. In extreme cases, Intel's baseband signal is not as good as Qualcomm's. In particular, the patent fees for customizing telecom frequencies make Apple very unhappy (the popularity of domestic telecom users is not enough). Apple's single card is a waste model even if it is full netcom, so it only supports the 2/3/4G network of China Mobile Unicom to launch dual netcom! The model configuration is the same as that of Netcom, so you don't have to worry about castration, but it doesn't support telecom mobile phone card signals.