This is strange. One of mine (G965FD) came with the Taiwan variant (G965FXXU1ARCC), and of course, spay loaded up in Taiwanese region. However, I just tried to uninstall via `pm uninstall com.samsung.android.spayfw`, which resulted in `Failure [DELETE_FAILED_OWNER_BLOCKED]`. I then installed com.samsung.android.spay_3.0.00-300000040 which I downloaded from apkmirror. Opens it up, it immediately shows up a prompt which forces me to update the main spay app. I clicked "Ok", and installed the package it downloaded. Now it launches and shows the US promotion and storefront with the latest framework version and latest spay package. Anyone with an S8, does this work with your device as well?