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BQ78PL116: No response to I2C access by an MCU at the very first time

Part Number: BQ78PL116
Other Parts Discussed in Thread: BQWIZARD

Hi, we use BQ78PL116 for smart battery management. I have mounted the chip on my board. And I tried to access the default SBS data in the chip by using an MCU, which acts as an I2C master. But there's no ACK when I accessed the chip with address 0x16. I'm sured that the chip reset is high and the LDO1's output is 2.5V.

So I need to confirm the following questions:

(1) Do the chip reply ACK to an I2C access with the slave address 0x16 when the chip is mounted on board with no other software initialization to it?

(2) Is it a MUST to initialize the chip using the bqWizard software at the first time?