Hello & Welcome to Just Answer,
Sorry to hear of any issue you are having with your device.
To help you with this issue, may I ask:
1) Can you give me a brief example of HOW the instructions are incorrect?
2) The AGE of the device?
3) WHEN this issue first began?
4) Have the maps in the device EVER been updated?
I see it has been a few days and I just wanted to follow up to see if you have any more questions concerning this issue or if the issue was resolved?
I look forward to any further questions or results that you may have.
Thanks, ***** *****--. .-(im)