Because Foston is a legacy brand with no central official repository, the firmware is primarily hosted on community forums and specialist sites:
Look on the back or bottom of the GPS unit for a like: firmware do gps foston fs 460 dt yg 912c
If you are looking to recover a device stuck on the logo screen (a common "brick" scenario for this model), you must use firmware files specifically labeled for the Because Foston is a legacy brand with no