Hi @ERCZSRHVAA,

Only the he following platforms are compatible with the FSM mobile solution:

• Android Devices
• iOS Devices
• Windows Tablets and Laptops

Currently it is not compatible with the HarmonyOS.

HarmonyOs is forked version of Android. Due to the fact that HarmonyOS is based on the AOSP (Android Open Source Project), it shares some characteristics with Android OS. 

But in our case FSM mobile officially compatible only following 3 platforms.

1)Android
2)Ios
3)Windows