Problem with bluetooth of 6DOF v4 IMU

Dear all forum members,

I had a problem with set up the connection of Bluetooth in 6DOF v4 IMU.

At the first time I could connect the IMU with compute by Bluetooth connection. But by the time, the power supply was lower than the expected input. As the result the connection was lost.

I change the new battery and setup again the bluetooth connection, but It is not successful. The RN_USB return the result of No Devices Found as I request an command of “I” in the terminal program.

As I try with another module of USB dongle, they could recognize and connect together. So, I guessed the problem came from the onboard Bluetooth module of 6DOF v4 IMU. Does anyone have the experience in this issue? Any suggestion is appreciate.

Many thanks,

Thien,