@hulubei did Same model and serial number? if not try other firmwares rom https://maimai.cn/article/detail?fid=1739460024&efid=H3G959-jSXcNZ7lgkxkNLg
I just kept testing other files untill I added the one I said and the camera after about 10 minutes rebooted and turned blue light.
untill then...
I have the MJSXJ09CM but there are three firmware for the same model. My serial number starts with 29048. The firmware that worked for me is: http://cdn.cnbj2.fds.api.mi-img.com/chuangmi-cdn/product/IPC029A02/firmware/IPC029A02_4.1.6_0329.zip
you need to change the name to tf_recovery.img...