bq20z90 issue

Hi,

I would like to ask about the bq20z90 issue.We found some different issue when engineering run.We already try to program the bq20z90 board using Bqtester station ,Bq multistation and ROM file. After program a few board,we use bq evaluation to communicate with our board,and key in some command 0041,0021and 0020,but  we found that some unit flags are different ,mostly is VOK,ChgM,AM,and ICC, some flags turn green(0) ,some flags turn it to red(1).Please refer to below question:-

1) operation status,for the VOK flags,it need to turn to 1 or 0, to consider it is in good condition.