Thread: Firmware for GTM 70 Digital Traffic Receiver up to version 2.30

Originally Posted by Neil

If you buy another receiver from a retailer it will almost certainly come with the original software version 2.00 loaded. If the v2.30 file named 006B154601.GCD is present on the GPS unit in .System/RemoteSW it will 'upgrade' any GTM70 connected to it automatically.

I still have the 006B154600.gcd original file from my first ever backup of my device. Thinking about putting this back on to see if it forces a 'downgrade'