Android Question serial.connect dosn't work (b4a 6.5, serial 1.26)

Without posting your code, or a sample code that demonstrates this behaviour there's not much we can do to help...

Sub connect_Philips
Dim m As Map, i As Int
m= serial1.GetPairedDevices
For i = 0 To m.Size - 1
If m.GetKeyAt(i)="Philips AEA2700" Then
serial1.Listen
serial1.Connect(m.GetValueAt(i))
ToastMessageShow("MAP: Verbinden " & m.GetKeyAt(i) & " " & m.GetValueAt(i),True)
File.WriteString(sd_root,sd_pfad & "/cp_mp3_PhilipsAEA2700.txt",m.GetValueAt(i))
Exit
End If
Next
End Sub

Beim Debuggen sieht man, dass alle gekoppelten Devices gefunden werden, der Philips Device ist dabei, die Toastmessage wird angezeigt, verbunden wird nicht.

das manifest file:

'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: https://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="4" />
<supports-screens android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true"
android:anyDensity="true"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTHADMIN" /> )

SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")


'End of default text.

wigigo said:

the discovery process fires the start and finished event, but never the devicefound event

Click to expand...

Is the other device in discoverable mode?

wigigo said:

I add the permission access_coarse_location. i'm running b4a 6.5

Click to expand...

This is not needed. It is added automatically.

wigigo said:

but serial.connect dosn't connect to the choosen device.

Click to expand...

You can only connect to devices that are waiting for SPP connections.

Ok, many thanks. This would be the problem. It's the conentor to my amplifyer to transfer mp3 in high quality, i think this is not spp.