Android Question Sunmi portable terminal V1 (problem printing tickets)


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I.m trying to print to an integrated bluetooth printer on a Sunmi V1 portable terminal.

My code is the basic bluetooth serial print example that we can find here in B4A, and it works with all printers except with this one.

Sunmi referes it uses a virtual bluetooth.

Does anyone know what could be the reason for the printer does not work with standard printing code?
I used the bluetooth previosly but the new version sumni running on andriod 11 its not working does anyone have any idea I previosly got wangpos to to work but its was nightmere
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