CHC i80 - LED Flash Error; 2 ：Communication Problem; BT; Wi-Fi Problem

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1.3：LED flash Error：
Fault description:
After power on the receiver, the LED light flashes abnormal.
Detection Method&Solution:
（1） Indicator light line fault.
If so, please replace the button panel.
（2） Mainboard error caused lights abnormal when power on.
If so, please replace the mainboard.
（3） i80 flexible circuit board is not good and the LDE circuit does not make sense.
If so, please replace the FPC flexible circuit board.
2：Communication Problem
2.1：BT/ Wi-Fi problem
Fault description:
After power on the receiver, handheld cannot search Bluetooth or Wi-Fi of the
receiver.
Detection Method&Solution:
（1）Bluetooth and Wi-Fi antenna assemble improper.
If so, please reassemble or replace the Bluetooth and Wi-Fi antenna.，Wi-Fi
（2）Bluetooth and Wi-Fi module failure. Please detect the FB11 on the mainboard
and the exact voltage from FB11 is 3.3V.
If cannot detect the voltage, please replace the mainboard.，Wi-Fi
（3）Firmware problem caused receiver Bluetooth and Wi-Fi abnormal.
If so, please update the receiver firmware.