Update Image Firmware

Hello,

i am trying to update KAIFA meter image firmware using optical probe(Android), I am following same Gurux hint to do that, error raised on step5(The Image is verified) , error descriptions is "Device reports a temporary failure." appreciate your support

GXDLMSImageTransfer target=new GXDLMSImageTransfer();
GXReplyData reply = new GXReplyData();
IGXMedia media = mDevice.getMedia();
//Check that image transfer ia enabled.
readDataBlock( mClient.read(target, 5), reply);
mClient.updateValue(target, 5, reply.getValue());
if (!target.getImageTransferEnabled())
{
throw new Exception("Image transfer is not enabled");
}

//Step 1: Read image block size.
readDataBlock(mClient.read(target, 2), reply);
mClient.updateValue(target, 2, reply.getValue());

// Step 2: Initiate the Image transfer process.
// readDataBlock( target.imageTransferInitiate(mClient, Identification, data.length), reply);
readDataBlock( target.imageTransferInitiate(mClient, "KFM_100A_DLMS", bytes.length), reply);

// Step 3: Transfers ImageBlocks.
int[] imageBlockCount = new int[1];
readDataBlock( target.imageBlockTransfer(mClient, bytes, imageBlockCount), reply);

//Step 4: Check the completeness of the Image.
readDataBlock(mClient.read(target, 3), reply);

mClient.updateValue(target, 3, reply.getValue());

// Step 5: The Image is verified;
readDataBlock( target.imageVerify(mClient), reply);

// Step 6: Before activation, the Image is checked;
//Get list to imaages to activate.
readDataBlock(mClient.read(target, 7), reply);
mClient.updateValue(target, 7, reply);
boolean bFound = false;
for (GXDLMSImageActivateInfo it : target.getImageActivateInfo())
{
//if (it.getIdentification().equals(Identification))
if (it.getIdentification().equals("KFM_100A_DLMS"))
{
bFound = true;
break;
}
}

//Read image transfer status.
readDataBlock( mClient.read(target, 6), reply);
mClient.updateValue(target, 6, reply);
if (target.getImageTransferStatus() != ImageTransferStatus.IMAGE_VERIFICATION_SUCCESSFUL)
{
throw new RuntimeException("Image transfer status is " + target.getImageTransferStatus().toString());
}
if (!bFound)
{
throw new RuntimeException("Image not found.");
}
//Step 7: Activate image.
readDataBlock( target.imageActivate(mClient), reply);