LinkOS Xamarin iOS bluetooth connectivity

I am having trouble connecting to ZQ520 via bluetooth using its MAC address. It is a Xamarin iOS project and the same piece of code works on Xamarin Android. The device I am using for testing is an iPhone XS running iOS 12.2. I keep getting the following error when I try to open a connection. I have updated info.plist according to the LinkOS guide.

Any help will be appreciated, thanks.

Screen Shot 2019-04-23 at 5.59.21 pm.png

Anonymous (not verified)
The attached link doesn't

The attached link doesn't produce the screenshot of the error. Can you re-attach the screenshot?

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Steven Si
You cannot use MAC address to

You cannot use MAC address to make a connection with iOS. For iOS, you have to use the name of the Bluetooth, which is the friendly_name on Zebra printers, in order to make a connection. The default value of the friendly_name is the Serial Number of the printer. The value can be changed and queried via the following SGD commands.

! U1 getvar "bluetooth"<CR><LF>

! U1 setvar "bluetooth" "new_name"<CR><LF>

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