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关于bq34z100g1的unseal问题,请指教

Other Parts Discussed in Thread: BQSTUDIO

我按照bq34z100g1的文档第8.3.3节进行i2c操作,第一步在seal的情况下先进行unseal,在bqstudio中的

advanced write中 i2c address 为AA,start register为00,byte to write为14 04,然后再写72 36,就是unseal

不了,如果byte to write为20 00,seal是可以的,在datamemory中看security内容seal to unsealed的值是

36720414没问题,直接写ffff ffff也不行,用bqstudio的commands执行unseal和unseal full access都没问题,

不知道什么原因,请指教