No, because they simply don’t exist. Apple hasn’t made an iPhone with that kind of storage. Only the iPad Pro is an iOS device with that kind of storage. A youtuber however has managed to achieve such capacity on its iPhone 7 Plus, and surprisingly the phone works .
The process to achieve this is not at all simple , and obviously it is not recommended at all because of the risks involved. In general, what you have to do is change the iPhone’s NAND memory to a 512 GB memory clone with the operating system. Getting the memory is easy thanks to the fact that this type of component comes out of China, but assembling it is not so easy anymore.
Federico Cerva got hold of a 512 GB iOS-compatible NAND memory , cloned the iPhone system and then proceeded to open the phone. The original NAND memory has to be removed from the motherboard and the area has to be properly cleaned. After this, the memory structure is copied to the 512 GB memory and proceeded to paste it in place of the previous one. It is glued properly and then it is time to assemble all the parts in their place again. If everything went well… 512 GB of storage available.
What’s the point of this? Beyond baffling Apple Store employees as Federico Cerva does, it doesn’t do much. Filling up 512GB on an iPhone is complicated , even storing movies, series and music locally. With iCloud and other cloud storage services as well as streaming services, it makes less and less sense to reach those capacity levels. But where we do see an increased need is when it comes to recording videos, installing professional applications or storing photos. Now it remains to be seen when Apple will make this leap into the iPhone officially, as the iPhone X, which is the latest model, only has 256 GB at most.