Tryfix LED T-Echo

src/ButtonThread.h

@@ -144,8 +144,15 @@ class ButtonThread : public concurrency::OSThread
                 screen->startShutdownScreen();
                 DEBUG_MSG("Shutdown from long press");
                 playBeep();
+#ifdef PIN_LED1
                 ledOff(PIN_LED1);
+#endif
+#ifdef PIN_LED2        
                 ledOff(PIN_LED2);
+#endif
+#ifdef PIN_LED3        
+                ledOff(PIN_LED3);
+#endif
                 shutdown_on_long_stop = true;
             }
 #endif