bq3060 sealed by mistake

Hello,

while learning step by step the bq3060 TechRef, I entered 0x20 in SBS Manufacturer Access and hit "Refresh".

It works, FAS and SS flags are set: Bravo! The gauge is sealed. No way to unseal it by 0x60, it just returns 0000 in the Manuf.Access field. I tried with Write 2 Word command, and with Read SMB Block.

But there's worse : no way to Read Data Flash anymore. An error box opens up: "Date" and "Error Reading subClsId=0 at block read cmd =120. Error code = 6"

No way to send any command on the Pro page, except for 0x00 (Man. Access) : another error prompts up, "SMB Read Word Error. Error Code: SMB Terminated: VB_T2H_UNKNOWN"

Did I kill the chip, Doc?

Thanks for your help.

Regards.

Matthieu.