So I just bought the 700BT and its really messing up...

Reboots every 3 mins

The starting up display on the botton never goes away

when u press map or GPS it frezees and needs to be reset.

So i thought well its NEVER been updated and ill see if that fixes the promblem and when i go to update it i get this every time at the same spot it updated a Serena?? im guessing its a file for the TTS

If anyone knows why or how to fix please help me out thank you

Well, isnt it possible the SD card you are using is bad ? Also i am not sure if it will fix your unit..

I think you should turn off all or most features on you system and then enable them one by one.

Like drive around for 10 minutes without anything, you main menu. If working : drive around for 10 minutes with navigation on. them music etc etc.

ive got the same issue, only stops at vf_nana...., but it's at 44% like yours. Did you have any luck with this

Same here! Help!

did any of you try to redownload the update, maybe you got a corrupted file during the transfer