BQ34Z100-G1: How to calibrate the gauge

Part Number:BQ34Z100-G1

Hello,

First here my settings:

- BQ34Z100EVM

- EV2400, version 18

- Lead Acid battery, 12V 7Ah

- BQ Studio, version 1.3.86

I have already done these things:

- Current and voltage calibration

- Find the Chemical ID using the GPCCHEM tool

But now I have two problems to end the calibration:

- I want to change the value of “Design Capacity”, “Terminate voltage” and other things but bqStudio tells me “a read of data written failed comparison”. It don’t change the value. I have tried many things: UNSEAL FULL ACCESS, ENTER_CAL, CAL_ENABLE. I have also tried to use the BQ studio version 1.3.54.1 but I get the same message. I can I fix this?

- How should I do the learning cycle? Is only one cycle enough? I there a special way to discharge the battery? Do I have to send specific commands to the BQ34Z100-G1 or will it do the calibration automatically?

Thank you in advance and sorry for my bad English,

Guénolé