I do not know of any Intel flash that would unlock sectors on "Reset". Can you be specific? Even so it is not relevant to the problem of this specific flash which does 100% opposite (intentionally and for a very good reason)

28F256L18. If I issue lock commands they take and further writes are not allowed with out an unlock sequence. If I power cycle the board all previous lock information is no longer there.

I do know early Intel flash would unlock all flashs sectors as you unlock one so all previous locks would have to be redone. U-Boot has code to fix this. I think you are confusing with this type of Intel

flash.

I think this is something else also. I'll scan the rest of your comments in a bit.

Regards, Richard W.