Cannot disconnect socket mobile S700

[huynhlqDev]

I am implementing app functionality with connecting multiple peripherals and some case need disconnect socketMobile device.
I tried to use: (1)
captureHelper?.captureApi?.close() { result in
if result == SKTResult.E_NOERROR {
print("captureApi closed")
} else {
print("can not close captureApi: \(result)")
}
}
or (2)
captureHelper?.closeWithCompletionHandler() { result in
if result == SKTResult.E_NOERROR {
print("captureHelper closed")
} else {
print("can not close captureHelper: \(result)")
}
}

but it doesn't work. In addition, running both causes the app to print "captureHelper closed" then to crash (related to BLE).
Can only turn off mobile socket with physical button [off]. but don't know what is the cause

[EricGlaenzer]

Closing capture does not disconnect the scanner. In most cases it is not appropriate to disconnect the scanner from the host as it could cause a lot of confusion for the end user. The best is to power off the scanner. There is a command to power off the scanner that you could use but again often this causes a not so great user experience. We will look at this BLE crash, although make sure you are using the latest version of CaptureSDK.

[cyrille-socket]

Hi @huynhlqDev, do you have the stack trace of the BLE crash please?