Fix of residual screen content following browser updates of SPIFFS files.

Bootload/COM.bat

@@ -1 +1 @@
-esptool.exe --chip esp32 --port COM14 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0xe000 boot_app0.bin 0x1000 bootloader_qio_80m.bin 0x10000 Afterburner.bin 0x8000 Afterburner.partitions.bin 
+esptool.exe --chip esp32 --port COM14 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0xe000 boot_app0.bin 0x1000 bootloader_qio_80m.bin 0x10000 AfterburnerV3.0.0.bin 0x8000 Afterburner.partitions.bin 

src/Afterburner.cpp

@@ -121,9 +121,9 @@
 
 #define RX_DATA_TIMOUT 50
 
-const int FirmwareRevision = 23;
+const int FirmwareRevision = 30;
-const int FirmwareSubRevision = 6;
+const int FirmwareSubRevision = 0;
-const char* FirmwareDate = "23 Jul 2019";
+const char* FirmwareDate = "28 Jul 2019";
 
 
 #ifdef ESP32

src/OLED/ScreenManager.cpp

@@ -585,13 +585,23 @@ CScreenManager::showRebootMsg(const char* content[2], long delayTime)
   _dim(false);
 }
 
+void 
+CScreenManager::clearDisplay()
+{
+  _pDisplay->clearDisplay();
+}
+  
 void 
 CScreenManager::showOTAMessage(int percent, eOTAmodes updateType)
 {
   static int prevPercent = -1;
 
   if(percent != prevPercent) {
+    prevPercent = percent;
     _pDisplay->clearDisplay();
+    if(percent < 0)
+      return;
+      
     _pDisplay->setFontInfo(&arial_8ptBoldFontInfo);
     _pDisplay->setCursor(64, -1);
     _pDisplay->printCentreJustified("Firmware update");
@@ -611,7 +621,6 @@ CScreenManager::showOTAMessage(int percent, eOTAmodes updateType)
       _pDisplay->setCursor(64,42);
       _pDisplay->printCentreJustified(msg);
     }
-    prevPercent = percent;
     _pDisplay->display();
   }
 }

src/OLED/ScreenManager.h

@@ -67,6 +67,7 @@ public:
   void selectMenu(eUIMenuSets menuset, int specific = -1);   // use to select loop menus, including the root or branches
   void showRebootMsg(const char* content[2], long delayTime);
   void showOTAMessage(int percent, eOTAmodes updateType);
+  void clearDisplay();
   void bumpTimeout();
 };
 

src/WiFi/BTCWebServer.cpp

@@ -702,6 +702,7 @@ void onUploadCompletion()
       server.send(500, "text/plain", "500: couldn't create file");
     }
     BrowserUpload.reset();
+    ShowOTAScreen(-1, eOTAbrowser);  // browser update 
   }
   else {
     if(BrowserUpload.isOK()) {