@Community member ：ok，Thank you very much for your answer.
for my STM32F765VIT6：
if my flash option bytes select single banked，what can i pick a flash algorithm？
if if my flash option bytes select dual banked，what can i pick a flash algorithm another？
I hope to hear from you�?�?
The error you are reporting is indicative of a mismatch in the banking vs flash algorithm.
So if you currently have the single bank ones selected, Remove them, and then Add the dual bank versions. Or the other way round depending on what isn't working currently. And the observe if it works then, or not.
If you still have a problem there may be other issues, but let's cross that bridge later if necessary.
