After almost a week struggling to install a new map, I stuck.
I have read instructions and tutorials( again, coz I had the same problem last year....), and I think I screw up completely because I have now ONLY TT logo after powering the unit( even after pressing the RESET).
I have TTone 3rd Edition( 1G ) (4N01.002).
What I'v done:
1. Deleted All files exept ttgo.bif, and ttsystem.
2. Downloaded United_States_900_4608 map on HD. ...