Hey guys. Experimental support for Mi Band 4 firmware update on iOS is ready. At the moment there is only 1.0.5.40 firm - new versions will come soon. You can try Mi Heart Rate app. In case of any problems let me know at support@mimhr.com
You can also try to change languages without updating...
Hello guys,
for iOS it is super simple to update to the latest firmware using MI Heart Rate app:
Mi Heart rate - be fit
1.6.0.16 in multiple languages is there already available.