Originally Posted by BP-isMe (Post 233444)

I had the same problem and finally got it fixed today...

Here's the story.

Mine worked for the trial period, then started asking for money. I have the Simply Unlimited plan that includes Sprint Navigation. I called Sprint and we determined that they had given me the wrong MDN when setting up the account long ago. I fixed the MDN and it still wouldn't get past the Navigation login issue.

We tried all the battery removal etc. stuff...no dice.

Finally got a call from the Telenav support person. After numerous calls it turned out to be very simple.

The preferences file in the "program files/telenav" directory held on to the original bad MDN number and kept causing the login error. The solution was to delete the preferences file. This fixed the problem immediately!

I saw posts mentioning that some people had their MDN get screwed up when upgrading. If you tried the Sprint Navigation before fixing the MDN, then your preferences file may need to be deleted.

Good Luck...Brad