These are the steps that should resolve any goto issues unless you have a hardware issue or mounted the scope incorrectly:
1. Turn on the mount, open the Synscan app, connect to the mount
2. Under "Alignment" choose "Reset Alignment" to clear the sky model.
3. Disconnect and exit the app. Remove the Synscan APP from device memory
4. Turn off the mount
5. Ensure the mount is level, the scope is in horizontal position and pointing North
6. Turn off the mount. Re-open Synscan and re-Connect the APP to the mount.
7. Perform a 3-Star alignment - as this is the most accurate form of alignment.
Hope this helps. I've struggled myself to get things to work so I can relate to any frustrations 🙂