rk3399: upgrade_tool failed load firmware

Hi,

Any help on this ‘uf’ is failed.

Rockusb>uf Firefly-RK3399_Android7.1.1_170516.img
Loading firmware…
Support Type:RK330C FW Ver:7.1.01 FW Time:2017-05-16 20:39:45
Loader ver:1.06 Loader Time:2017-05-16 19:22:42
Download IDB Fail

thanks!
Jagan.

with Maskrom ?
http://wiki.t-firefly.com/index.php/Firefly-RK3399/MaskRom/en

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