RTFM LOL :(

src/main/java/com/rusefi/dfu/DfuConnectionUtil.java

@@ -6,9 +6,12 @@ public class DfuConnectionUtil {
     public static void waitStatus(DfuLogic.Logger logger, DfuConnection device) {
         DfuCommandGetStatus.DeviceStatus state = DfuCommandGetStatus.read(logger, device);
         logger.info("First state " + state);
+        long enter = System.currentTimeMillis();
         while (state.getState() == DfuCommandGetStatus.State.DFU_DOWNLOAD_BUSY || state.getState() == DfuCommandGetStatus.State.DFU_ERROR) {
             state = DfuCommandGetStatus.read(logger, device);
             logger.info("Loop state " + state);
+            if (System.currentTimeMillis() - enter > 10 * DfuConnection.SECOND)
+                throw new IllegalStateException("State does not look good");
         }
     }
 

src/main/java/com/rusefi/dfu/DfuLogic.java

@@ -33,7 +33,7 @@ public class DfuLogic {
             DfuSeCommandSetAddress.execute(logger, device, device.getFlashRange().getBaseAddress() + offset);
             DfuConnectionUtil.waitStatus(logger, device);
 
-            ByteBuffer buffer = ByteBuffer.allocateDirect(device.getTransferSize());
+            ByteBuffer buffer = ByteBuffer.allocate(device.getTransferSize());
             // last transfer would usually be smaller than transfer size
             int size = Math.min(device.getTransferSize(), image.getImage().length - offset);
             buffer.put(image.getImage(), offset, size);
@@ -45,7 +45,7 @@ public class DfuLogic {
     }
 
     public static void leaveDFU(Logger logger, DfuConnection device) {
-        device.sendData(DfuCommmand.DNLOAD, DfuSeCommand.W_DNLOAD, ByteBuffer.allocateDirect(0));
+        device.sendData(DfuCommmand.DNLOAD, DfuSeCommand.W_DNLOAD, ByteBuffer.allocate(0));
         // The DFU Leave operation is effectively executed only when a DFU_GETSTATUS request is
         // issued by the host.
         DfuConnectionUtil.waitStatus(logger, device);

src/main/java/com/rusefi/dfu/android/AndroidDfuConnection.java

@@ -12,13 +12,17 @@ import static android.hardware.usb.UsbConstants.USB_DIR_OUT;
 
 public class AndroidDfuConnection implements DfuConnection {
     private final UsbDeviceConnection usbDeviceConnection;
+    private final byte interfaceNumber;
+    private final int transferSize;
     private final FlashRange flashRange;
 
     private static final byte REQUEST_TYPE_CLASS = 32;
     private static final byte RECIPIENT_INTERFACE = 0x01;
 
-    public AndroidDfuConnection(UsbDeviceConnection usbDeviceConnection, FlashRange flashRange) {
+    public AndroidDfuConnection(UsbDeviceConnection usbDeviceConnection, byte interfaceNumber, int transferSize, FlashRange flashRange) {
         this.usbDeviceConnection = usbDeviceConnection;
+        this.interfaceNumber = interfaceNumber;
+        this.transferSize = transferSize;
         this.flashRange = flashRange;
     }
 
@@ -29,7 +33,7 @@ public class AndroidDfuConnection implements DfuConnection {
 
     @Override
     public int getTransferSize() {
-        return 0;
+        return transferSize;
     }
 
     @Override
@@ -42,8 +46,8 @@ public class AndroidDfuConnection implements DfuConnection {
         return transfer(usbDeviceConnection, USB_DIR_OUT, command.getValue(), wValue, data);
     }
 
-    private static int transfer(UsbDeviceConnection connection, int direction, int request, short wValue, ByteBuffer byteBuffer) {
+    private int transfer(UsbDeviceConnection connection, int direction, int request, short wValue, ByteBuffer byteBuffer) {
         return connection.controlTransfer(REQUEST_TYPE_CLASS | RECIPIENT_INTERFACE | direction, request,
-                wValue, 0, byteBuffer.array(), byteBuffer.limit(), 500);
+                wValue, interfaceNumber, byteBuffer.array(), byteBuffer.limit(), DFU_TIMEOUT);
     }
 }

src/main/java/com/rusefi/dfu/commands/DfuCommandAbort.java

@@ -7,7 +7,7 @@ import java.nio.ByteBuffer;
 
 public class DfuCommandAbort {
     public static void execute(DfuConnection session) {
-        ByteBuffer buffer = ByteBuffer.allocateDirect(0);
+        ByteBuffer buffer = ByteBuffer.allocate(0);
         session.sendData(DfuCommmand.ABORT, (short) 0, buffer);
     }
 }

src/main/java/com/rusefi/dfu/commands/DfuCommandClearStatus.java

@@ -7,7 +7,7 @@ import java.nio.ByteBuffer;
 
 public class DfuCommandClearStatus {
     public static void execute(DfuConnection session) {
-        ByteBuffer buffer = ByteBuffer.allocateDirect(0);
+        ByteBuffer buffer = ByteBuffer.allocate(0);
         session.sendData(DfuCommmand.CLRSTATUS, (short) 0, buffer);
     }
 }

src/main/java/com/rusefi/dfu/commands/DfuCommandGetStatus.java

@@ -14,7 +14,7 @@ public class DfuCommandGetStatus {
     private final static AtomicInteger STATUS_COUNTER = new AtomicInteger();
 
     public static DeviceStatus read(DfuLogic.Logger logger, DfuConnection session) {
-        ByteBuffer buffer = ByteBuffer.allocateDirect(PACKET_SIZE);
+        ByteBuffer buffer = ByteBuffer.allocate(PACKET_SIZE);
         int count = session.receiveData(DfuCommmand.GETSTATUS, (short) 0, buffer);
         if (count != PACKET_SIZE)
             return new DeviceStatus(null, State.DFU_ERROR);

src/main/java/com/rusefi/dfu/commands/DfuSeCommandSetAddress.java

@@ -26,6 +26,6 @@ public class DfuSeCommandSetAddress {
     }
 
     protected static ByteBuffer createBuffer(int capacity) {
-        return ByteBuffer.allocateDirect(capacity).order(ByteOrder.LITTLE_ENDIAN);
+        return ByteBuffer.allocate(capacity).order(ByteOrder.LITTLE_ENDIAN);
     }
 }