Sending an MMS message with an image using sendMultimediaMessage NOT WORKING OR NOT SETUP RIGHT HELP!

DELPHI BERLIN 10.1.2 AND THIS IS FOR AN ANDROID PLATFORM.  

procedure TTabbedForm.SEND_SMS(NBR, TXT: string);

var
  SmsManager: JSmsManager;
  smsTo, txt2 : JString;
  myContext : jContext;
  pic : string;
  Pic2 : Jnet_URI;

begin

  pic := TPath.Combine(TPath.GetSharedDocumentsPath, 'pic.png');
  SmsManager := TJSmsManager.JavaClass.getDefault;
  smsTo := StringToJString(nbr);
  txt2 := StringToJString(TXT) ;
  pic2 := StrToJURI(pic);
  myContext := SharedActivityContext;

//  SmsManager.sendTextMessage( smsTo, nil, txt2, nil, nil);
  SmsManager.sendMultimediaMessage(myContext,pic2,smsTo,nil,nil);

The sendtextmessage works great but I can not find info to help with sendMultimediaMessage parameters

THANKS Walter