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BQ35100: Unsealed / Full access

Part Number: BQ35100

Hi, Team
I faced a problem with BQ35100 access. The BQ35100 is in the SEALED state I tried to set BQ35100 to FULL access mode. The sequence is the following:

- read status (get 0x6080);

- send (0x00 0x14 0x04);

- send (0x00 0x72 0x36);

- read status (get 0x4080);

- send (0x00 0xff 0xff);

- send (0x00 0xff 0xff);

- read status (get 0x4080); but I expected to get 0x2080 (full access)

The situation is the following, I put after UNSEALED command a delay about 10 sec and then send FULL access command, and read the status, it turns out it is 0x2080 (as expected FULL access), But when powered off the device and then powered up the state is SEALED, why? is it possible to save FULL access mode?