Help/Support Find correct offset for A12 (Address not in any region)

[Udomoody 3 iPhone 7 Plus 13.5]

Hello everyone,

I have a tweak that patches some memory in an app. On my iPhone 7 with iOS 14 and checkra1n it works perfectly. The code looks like this

void (*_mySymbol)();
	MSHookSymbol(_mySymbol ,"_mySymbol",NULL);
	const uint8_t data[] = {
		0x1,0x0,0x0,0x0
	};
	

	kern_return_t err = KERN_SUCCESS;
	mach_port_t port = mach_task_self();
	vm_address_t address = (uintptr_t) _mySymbol;
	err = vm_protect(port,(vm_address_t)address, sizeof(data),false,VM_PROT_READ | VM_PROT_WRITE | VM_PROT_COPY);

	if (err != KERN_SUCCESS)
	{
		NSLog(@"false");
		return;
	}
	err = vm_write(port,address,(vm_address_t) &data,sizeof(data));

When I now want to run this tweak on my A12 device (with unc0ver), MSHookSymbol just returns an address that is out of region. So I guess I have to calculate a different offset, but I don't really know what I'm missing and what I should do. Anyone knows what I have to do differently here for the A12 device?