Vcc min/max difference exceeded

@wcfung1 wrote:

My recently assembled S500 quad was flight tested with Pixhawk running Copter 3.4.1 has the following warning on Log Analyzer in Data Flash Log :--

Vcc = WARN --- Vcc min/max diff 2.18V, should be < 0.3 V

The data flash log is accessible at the following link :--
https://drive.google.com/file/d/0B6I7fpf28GiiSEU1QTBuN01TbUk/view?usp=sharing

Pixhawk is powered by 3DR power module. With battery connected, I unplugged the power module 6-pin cable from the Pixhawk power port and measured
the voltage and found to be 5.36 V.

What may be the possible causes ? Pls help.

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