I have a bq27510 I may have accidently change the full access key on. I can go between sealed and unsealed mode with bqeasy but I can no longer go from unsealed to full access mode. I have read that if the sealed key(s) are lost, the part must be changed but I don’t know if that is also true of the full access key also.
I have two questions:
1) If I did accidently change the full access key, is the only option I have to change the chip like the unsealed key?
2) I did not intend to change the key and at the time I may have changed it I was writing values to the data flash “system data” (in bqeasy->Data Flash->System Data) to see if I could write custom data to read to ID the “golden image”. I have not found the procedure in the documentation on how to change the keys. Can someone provide or point me to the procedure on how to change the keys for unsealed and full access?
Thanks,
Doug
