First, many friends said that after downloading and installing navigation software or upgrading the original navigation software, satellites could not be searched during navigation. This problem is generally caused by the difference of port number and baud rate between navigation software and navigator. At this time, we only need to modify the port number and baud rate correctly again, but novices often don't know what is in the file to be modified. Here I will give you a list of common brands of GPS navigation port rate summary, so that you can see at a glance that it needs to be changed.

Second, in fact, you can know the port and baud rate of your computer by using the configuration file or modifying the port baud rate, and you can know the port and baud rate of your computer by looking back at the original navigation map file. Baud rate modification file for each navigation map port.

1, such as map of Khalid.

Check whether the original map folder NaviOne (mostly with this name) has a txt file named SUPCFG, or config, etc. As long as there is a similar txt file, and the original picture can be searched for stars, OK, open this file with notepad.