Phone Clone from Samsung S7 to Huawei P30 blocked?

I'm trying to upgrade a Samsung S7 to a Huawei P30 using the Phone Clone app on the P30. This works by setting up a WiFi hotspot on the new device and then connecting the old device to it. This fails every time, but when I look at the old S7 the hotspot has been added to the list of restricted networks, probably because the new phone isn't acting as a bridge to the internet and something stupid in the S7 is deciding it isn't a valid network because no internet. How do I get Phone Clone to work? How do I turn off whatever it is in the Samsung phone deciding to block the WiFi hotspot because it's local only?