pinecil firmware updater 0.1 success

Downloading IronOS...

Flashing begin
WinUSB driver not found. Installing...
OPT: VID number 10473
OPT: PID number 393
Found USB device: "Unknown Device #1" (28E9:0189)
installing wdi driver with <libusb_device.inf> at <usb_driver>

Flashing...
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to http://sourceforge.net/p/dfu-util/tickets/


Opening DFU capable USB device...
ID 28e9:0189
Run-time device DFU version 011a
Claiming USB DFU Interface...

Setting Alternate Setting #0 ...

Determining device status: state = dfuERROR, status = 10
dfuERROR, clearing status
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 011a
Device returned transfer size 2048
DfuSe interface name: "Internal Flash  "
Performing mass erase, this can take a moment
Setting timeout to 35 seconds

Downloading to address = 0x08000000, size = 48432

Download	[                         ]   0%            0 bytes
Download	[=                        ]   4%         2048 bytes

Download	[==                       ]   8%         4096 bytes

Download	[===                      ]  12%         6144 bytes

Download	[====                     ]  16%         8192 bytes

Download	[=====                    ]  21%        10240 bytes

Download	[======                   ]  25%        12288 bytes

Download	[=======                  ]  29%        14336 bytes

Download	[========                 ]  33%        16384 bytes

Download	[=========                ]  38%        18432 bytes

Download	[==========               ]  42%        20480 bytes

Download	[===========              ]  46%        22528 bytes

Download	[============             ]  50%        24576 bytes

Download	[=============            ]  54%        26624 bytes

Download	[==============           ]  59%        28672 bytes

Download	[===============          ]  63%        30720 bytes

Download	[================         ]  67%        32768 bytes

Download	[=================        ]  71%        34816 bytes

Download	[===================      ]  76%        36864 bytes

Download	[====================     ]  80%        38912 bytes

Download	[=====================    ]  84%        40960 bytes

Download	[======================   ]  88%        43008 bytes

Download	[=======================  ]  93%        45056 bytes

Download	[======================== ]  97%        47104 bytes

Download	[=========================] 100%        48432 bytes
Download done.
File downloaded successfully

Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!

Done! You can disconnect your Pinecil!