how to change baud rate of gy-neo6v2
the default of this is 9600.
i want to change it in to 250000
does it has solution to solve this.
Sounds like a Ublox 6.
The Protocol Specification datasheet for that GPS should have the details of the command needed to change the baud rate. Look it up.
The Ublox application u-center can also be used to setup or check a GPS command.