I did reset the Mix and removing the root. SasmugnApp worked a few days and then disappear again. ROM miui.eu stock without modification. So it is not the root cause.
Inviato dal mio ONEPLUS A3003 utilizzando Tapatalk
So, at last, the Mi Mix has a serious problem with the GEAR S3 and the MIUI.EU.
The GEAR Manager does not open the App Store for downloading Watch Faces and other additional applications. Once you have done the Samsung Login when you enter in the Store appears a white Page.
Any idea to solve...
In System2 now I have the Ivan's kitkat ROM installed with the M1cha's recovery, in System1 last MIUI rom.
Can I install your PlayGoogleEditionAriesKitKat.zip simply putting the zip file in the external SD and flash on system2 with the M1cha's recovery (after wipe of course)?