1. If you have never received stuff from Dream Radar before, take note of this value (let's call it A) here.
If you have received stuff before from Dream Radar before, take note of this value (let's call it A) here, then jump to step 4.
(it doesn't need to be that specific location. Just the most common 4 in the area)
This value A would be different, depending on your save.
Grab A from your own save.
2. Blank out these lines, and fill up these bytes
(it's a CRC 16 CCITT checksum of the bytes from 0x7F00 to 0x7F00F)
3. Fill up these values in red with A (as noticed from earlier in your file)
4. Take A and xor it against 0x87643567. Then write the final value into 0x7F01C
Keep endianness in mind.
Example:
5. Fix the checksum for these locations.
After that, go to Unova Link > Nintendo 3DS Link to receive the mons from Dream Radar.
Once you receive the mons, you can receive the item from the NPC (gotta reload the area for the NPC to load)
[requirement for the Therian Landorus with your OT details apply]