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BQ27Z561-R2-DEVICE-FW: Reading wrong CHEM-ID

Part Number: BQ27Z561-R2-DEVICE-FW
Other Parts Discussed in Thread: BQ27Z561-R2

Hi team,

Customer told me, that he could not read right CHEM-ID. So I went to check some samples.

Here my application environment:

- Battery Pack 1S

- NCR18500(1900mAh) CHEM-ID 2040

- FuelGauge BQ27z561-R2 + PCM

- Lerning Cycle and DF parameters via Battery Studio 1.3.101, to get a "golden sample"

- In production: Programming the pack via Flash Stream File

Test steps:

1. Read CHEM-ID (via BQ-Studio) = 0x1210

2. Read Data Memory Ra Table (via BQ-Studio)

3. Programming CHEM-ID 2040 (via BQ-Studio)

4. Read CHEM-ID (via BQ-Studio) = 0x2040

5. Read Data Memory Ra Table (via BQ-Studio), obviously the values were already right programmed...

6. Programming CHEM-ID 1210 (via BQ-Studio)

7. Read Data Memory Ra Table (via BQ-Studio)

Pls help to fix the issue.