BQ76952EVM: BQ76952EVM failed to connect to bqStudio

Part Number: BQ76952EVM
Other Parts Discussed in Thread: BQSTUDIO, , BQ76952, EV2400

I have Connected a 0-V DC power supply capable of 300mAh between the “BAT-” and "CELL16" terminals and adjust to approximately 50V.

And I have pressed and released the WAKE switch. 

Like the pictures and videas.

But it seems that BQ76952EVM failed to connect to bqStudio.

How to fix it?1.jpg2.jpg4.jpg