Support Thread for the TND 500, TND 700 or future Rand McNally products. (part two)

Hey Mark,

First off let me say thanks for helping all these people on here.

Hopefully you can assist me with my issue as well.

I have a tnd 720 w/ the 4gig map update, has been running great for 3 years.

I recently updated it today (03/20/16) and when it boots up, it gives me the "serious navi error" message and times out on loading. ("Gave up waiting for main navigation engine"

Now I took the the SD card out to see if it would boot up without it and it did.

Powered it off, reinserted the card then powered it back on.

Same navi error preventing boot up, everytime.

I ran the diagnostic & repair on the dock app, it repaired some files.

after that i tried the boot it, same navi error,.

But again, removing the SD card, the unit boots.

So I'm guessing the data on the SD card is corrupt but I can't find where I can redownload it on the dock app. it says my unit is up to date, even when I removed the data from the SD card and put a clean one back in the unit. But I copied that data to my desktop just in case.

Any light you can shine on this for me will be well recieved, I love my 720, it's been a real trooper and would hate to go back to using the vanilia version


**Update** After Uninstalling the dock software and reinstalling it to a different drive, the map update button showed up on the new dock install.

The device boots properly now with no problems.

 

I thought a 16gig card was the max it would read without issues. Not to mention it cant be a "Ultra" card

 

I've been running in on a 32gig with no problems until now

I made a typo, its a 3.89gig update not 24 lol

 

Why does my tablet randomly restart and then have the date set to 1970?

and why oh why can't it give two practical routes when I compare. I mean 400 miles versus 700. Really

 

The tablet. It may not always be a random restart but occasionally a drained battery. Today I think it randomly shut off, I started it back up and date and time were wrong, changed it in the tablet settings but still wasn't right on the truck GPS, restarted again and was back to normal. Happened to me more than once. Really frustrating when I count on this thing to track mileage and I have to restart it too often while rolling.

And yes comparing routes based on my preferences, which I will look at again but I'm pretty sure I allow all