Please refer to the upgrade tutorial: GPS 系列模组升级指南
Download link: gk9501_release_gb_1.4_20180224.zip
Updated: April 28, 2018
Download instructions:
This firmware is for A9G, only A9G can burn GPS firmware, other modules cannot The GPS firmware has been burned by default when leaving the factory, so customers generally do not need to burn this firmware GPS firmware is normal and not maintained