fozrider
Member
Here is what I have found so far with the various firmware versions for the B1M. I reformatted my sd card, installed the appropriate firmware, went for a ride, copied the files, erased the sd card and started over with a reformat. I then tried the files with the various GPS players and looked at a Hexdump of the files.
Firmware 20190919 and 20200327 have easily decipherable GPS data (and could probably be made to work with some of the players). Firmware versions 20200602, 20200707 and 20200901 look like they have encoded GPS that would require BlueSkySea to disclose how they are encoding the data. Firmware 20210129 has no decipherable GPS data. Note: the only files that work with the BlueSkySea player v 3.59 to display the map and speed are from 20190919 and 20200327
Here is what I found with the Hexdump of the files
Firmware 20190919
freeGPS
$GPRMC,191527.000,A,4940.19389,N,11252.34729,W,0.000,73.15,230321,,,A*79.
Firmware 20200327
freeGPS
$GPRMC,214911.000,A,4939.62848,N,11247.68740,W,1.061,145.27,200321,,,A*48
Firmware 20200602 encoded GPS data?
freeGPS ........
:.......A...z.):
....\`....hmtqt
mmjlllh}hpupljmu
rnlh.hmmnqnjoqnl
th.hljqtrhnqojln
hnnlonmhhh}fpu..
..
....427999345...
Firmware 20200707 (encoded gps?)
freeGPS ........
9...!...A.....}"
OL.@N......._$..
.E?@\...(|Y@....
=...\`....hmrqs
oojlllh}hpupljol
umnh.hmmnqmjumon
rh.homjnsohmlmju
phnnlonmhhh}fsu.
..
..
....427999345...
Firmware 20200901 encoded gps?
freeGPS ........
..
..
...\`....hmsou
lsjlllh}hpupljmu
lrnh.hmmnqnjoppq
th.hnjmpuhnqpjll
hnnlonmhhh}fpp..
..
..
....427999345...
Firmware 20210129
no decipherable gps data no freeGPS or GPS found in file
Firmware 20190919 and 20200327 have easily decipherable GPS data (and could probably be made to work with some of the players). Firmware versions 20200602, 20200707 and 20200901 look like they have encoded GPS that would require BlueSkySea to disclose how they are encoding the data. Firmware 20210129 has no decipherable GPS data. Note: the only files that work with the BlueSkySea player v 3.59 to display the map and speed are from 20190919 and 20200327
Here is what I found with the Hexdump of the files
Firmware 20190919
freeGPS
$GPRMC,191527.000,A,4940.19389,N,11252.34729,W,0.000,73.15,230321,,,A*79.
Firmware 20200327
freeGPS
$GPRMC,214911.000,A,4939.62848,N,11247.68740,W,1.061,145.27,200321,,,A*48
Firmware 20200602 encoded GPS data?
freeGPS ........
:.......A...z.):
....\`....hmtqt
mmjlllh}hpupljmu
rnlh.hmmnqnjoqnl
th.hljqtrhnqojln
hnnlonmhhh}fpu..
..
....427999345...
Firmware 20200707 (encoded gps?)
freeGPS ........
9...!...A.....}"
OL.@N......._$..
.E?@\...(|Y@....
=...\`....hmrqs
oojlllh}hpupljol
umnh.hmmnqmjumon
rh.homjnsohmlmju
phnnlonmhhh}fsu.
..
..
....427999345...
Firmware 20200901 encoded gps?
freeGPS ........
..
..
...\`....hmsou
lsjlllh}hpupljmu
lrnh.hmmnqnjoppq
th.hnjmpuhnqpjll
hnnlonmhhh}fpp..
..
..
....427999345...
Firmware 20210129
no decipherable gps data no freeGPS or GPS found in file