I have been using ax10 v1.2 for almost a year, the firmware update is still stagnant, the latest update still stays in July, on the contrary the v1 version update has gone to September, I tried to manually install the v1 update file to the v1.2 version ax10, the installation fails every time. The official website says that the hardware version is v1.x=v1. Why can't I manually use the v1 firmware?