Index: src/progs/icd2/base/icd2_serial.cpp
===================================================================
--- src/progs/icd2/base/icd2_serial.cpp	(révision 2930)
+++ src/progs/icd2/base/icd2_serial.cpp	(révision 2932)
@@ -31,16 +31,27 @@
 {
   if ( !static_cast<SerialPort *>(_port)->open(Port::Serial::S19200) ) return false;
   if ( !reset() ) return false;
+  log(Log::DebugLevel::Max, QString("Send: \"%1\"").arg("Z"));
   if ( !_port->send("Z", 1) ) return false;
   QString s;
   if ( !_port->receive(4, s) ) return false;
+  log(Log::DebugLevel::Max, QString("Received: \"%1\"").arg(s));
+
   if ( !reset() ) return false;
-  QByteArray a = toAscii(mode);
-  if ( !_port->send(a.data(), a.count()) ) return false;
-  if ( !_port->receive(1, s) ) return false;
-  if ( s.upper()!=mode ) {
-    log(Log::LineType::Error, i18n("Failed to set port mode to '%1'.").arg(mode));
-    return false;
+  for (uint i = 0; ; ++i) {
+    const QByteArray a = toAscii(mode);
+    log(Log::DebugLevel::Max, QString("Send: \"%1\"").arg(mode));
+    if ( !_port->send(a.data(), a.count()) ) return false;
+    if ( !_port->receive(1, s) ) return false;
+    log(Log::DebugLevel::Max, QString("Received: \"%1\"").arg(s));
+    if ( s.upper()==mode ) {
+      break;
+    }
+    if (i == 10) {
+      log(Log::LineType::Error, i18n("Failed to set port mode to '%1'.").arg(mode));
+      return false;
+    }
+    Port::msleep(100);
   }
   //log(Log::Debug, "set fast speed");
   //if ( !setFastSpeed() ) return false;
@@ -49,6 +60,7 @@
 
 bool Icd2::SerialHardware::reset()
 {
+  log(Log::DebugLevel::Max, QString("Reset icd2 serial port"));
   static_cast<Port::Serial *>(_port)->setPinOn(Port::Serial::DTR, false, Port::PositiveLogic); // Trigger DTR to reset icd2
   Port::msleep(10);
   static_cast<Port::Serial *>(_port)->setPinOn(Port::Serial::DTR, true, Port::PositiveLogic); // remove reset