Bluetooth issue with Android


I'm using Zebra printer IMZ320 with a samsung mobile phone Xcover4 and most of the time the bluetooth is not working.

I can work few minutes without any issue but after few minutes the the connection suddenly disappeared.

I checked some settings on Zebra utilities and I discovered that the setting "Reconnect" was set by default to iOS (Apple) the other choice is "off".

Do you know if my issue is from this setting??