On mine, the GPS is always taking anywhere from 2-8 minutes to achieve a lock. That is way too long. I noticed that the sequential files and dates in the Registrator Viewer are out of sequence based on the dates. AMBA0032-47 should be followed by AMBA0048, but it has a date of 2006. The file AMBA0049-61 is highlighted and showing what the camera's date is, which is for 2015.
Here is the log file for 0048 from the GPS. I don't know how a firmware patch can fix this.
V,280606,115946.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,-00.61;
V,280606,115947.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;
V,280606,115948.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;
V,280606,115949.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;
V,280606,115950.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;
V,280606,115951.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;
V,280606,115952.000,0000.0000,N,00000.0000,E,000.0,0.0M,-01.23,-09.19,+00.00;