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MS838B
User’s Manual
1.6 LED / Beeper Indicator
Division
Red LED Light
Green LED Light
Beep / Sound
Battery charging
Red light
always on
Battery
Fully charged
Red light out
Power On
One Long Beep
2.4 G Receiver Pairing
Green light keeps
flashing
Bluetooth Pairing
Green light keeps
flashing
Bluetooth SPP/BLE
Pairing
Slow Flash
USB connection
success
Green light
always on
One short Beep
2.4 G Receiver
connection success
Green light
always on
One short Beep
Bluetooth connection
success
Green light
always on
One short Beep
Barcode Good Read
Green light flash
once
One short Beep
Wireless Setting
Sound
Two High Beeps
Bluetooth
Transmission Failed
Three short
Beeps
Mode Setting success
High and Low
Beeps
Data saved success
High and Low
Beeps
Data upload complete
High and Low
Beeps
Auto Power Off
High and Low
Beeps
USB disconnection
Three short
Beeps
2.4 G Receiver
disconnection
Three short
Beeps
Bluetooth
disconnection
Three short
Beeps
Data upload failed
Three short
Beeps
Flash memory is full
Three short
Beeps
Auto Power Off under
Low Battery
Three short
Beeps and High
and Low Beeps