You're looking for a custom IPSW download for your iPhone XR, specifically a patched version.
Some tools like Dopamine or palera1n (palera1n does NOT work on XR) offer custom booting, but they do not provide a pre-patched IPSW. You must jailbreak after restoring stock iOS. iphone xr custom ipsw download patched
Activation Lock is server-side. Flashing any IPSW—custom or stock—will still require the original Apple ID password after restore. The only legal methods are: You're looking for a custom IPSW download for
The progress bar on his MacBook moved with agonizing slowness. iphone xr custom ipsw download patched