iUSBport2 firmware v19

The firmware version 19 is attached. 

1. Save the file into USB flash drive and keep the file name as it is.
2. Insert the USB flash drive into the device and power it up.
3. Wait till the screen shows "Update vXX to v19", press the power button one time to confirm.
4. Once the update is completed, unit will be shut off.

Bug Fixed:
        1, Cannot copy ExFAT memory card to FAT32/ExFAT USB H.D.D.
        2, Charging LED does not light on when iUSBport2 is in Wi-Fi mode.

New Features:
        1, Add Apple USB Ethernet Adapter driver.
        2, Add 5G Wi-Fi Adapter driver.
        3, Select Wi-Fi channel by manual
        4, Add an option to enable 'HFS+ Writable’
        5, Add an option to let users to setup ‘Auto-Off’ interval