You can
You can find it in mi fit root file directory.
New firmware 1.0.5.55 with resources v56 available for MB4 non NFC:
https://cdn.awsde0.fds.api.mi-img.com/huami/cinco_201907262116_1.0.5.55_cinco.fw
https://cdn.awsde0.fds.api.mi-img.com/huami/cinco_201907262116_v56_res.pack.bin