Last night, I tried to upgrade my 2011 Garmin unit with the 4.14 firmware update, which resulted in a bricked navigation screen.
There are two updates floating around, one for the CTP13 (2013) units (v3.15 I believe) and one for the CTP2012 (2011-2012) units (v4.14).
I used the CTP2012 (v4.14) file, and my unit is stuck on the Garmin splashscreen with "Loader Loading..." text on the top. It will not boot any further.
I've tried ...