Guys - there's been a few posts saying they can't find the latest firmware.
the gustard webpage has an english page version and that page has the latest firmware on it here.
http://www.gustard.cn/?post_type=products&page_id=14991
It takes you to a baidu page which has the file for download.
https://pan.baidu.com/s/1xm9WB5cIE9odq385R0jvVA?pwd=6666
Note: I haven't used this myself. I won't be updating the firmware unless I have an issue or there is a new feature that pops up i'd like.
the gustard webpage has an english page version and that page has the latest firmware on it here.
http://www.gustard.cn/?post_type=products&page_id=14991
It takes you to a baidu page which has the file for download.
https://pan.baidu.com/s/1xm9WB5cIE9odq385R0jvVA?pwd=6666
Note: I haven't used this myself. I won't be updating the firmware unless I have an issue or there is a new feature that pops up i'd like.