This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ27742-G1: Firmware upgrade using (.bq.fs) file

Part Number: BQ27742-G1

I have stored the (.bq.fs) file in my flash. I am able to read the desired commands addresses and data. The commands with 0xAA device address are being transmitted succesfully.

But when i encounter the first command with (0x16) Device address , I am not getting any acknowledge from the device.  I am not sure what address does 0x16 correspond to. Also is it a 7-bit address or a left shifted 8-bit address? Here are the command until which it executes successfully.

;--------------------------------------------------------
;Unseal device
;--------------------------------------------------------
W: AA 00 14 04
W: AA 00 72 36
W: AA 00 FF FF
W: AA 00 FF FF
X: 1000
;--------------------------------------------------------
;Go To ROM Mode
;--------------------------------------------------------
W: AA 00 00 0F
X: 1000
W: 16 00 04 00 00 00 83 DE    // The command which fails to recieve acknowledge from the device.

Could anyone help?

Thank you