Hello, I've got a similar problem with my BLE device which I connect to my application. I need to send from app to device write commands (without acknowledgment/response) via BLE to upgrade the device firmware. Any news? Thank you

Hi everyone, I'll post what I've found, maybe it could be useful for someone. I put this property to the characteristic of my custom device and it seems it works: BLECharacteristic::PROPERTY_WRITE_NR The write command now is permitted with this property