Instruction Manual

Guilin Feiyu Electronic Technology Co., Ltd.
Guilin Feiyu Electronic Technology Co., Ltd http://www.feiyu-tech.com [e-mail]
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STEP 2: If you have not done so, please install the USB TTL Cable driver from FY websites. The
computer will not recognize the USB TTL Cable if the proper driver is not installed.
USB dirver: http://www.feiyu-tech.com/download-en.php?id=37
STEP 3: Connect the USB-TTL cable to the computer. Note – Do not connect the FY Module yet!
Do not connect the FY module to USB driver!
STEP 4: Open the FY Firmware upgrade program:
STEP 5: Select the right Com port number, and select 19200 as the baud rate.