How can I shorten the length of the passkey?

[schosdas]

Hello

I'm using sdk v17 and trying to shorten PASSKEY.

Currently, my PASSKEY is 6 letters long. I want to shorten it to 4 letters, is this possible?

Or how do I get rid of the password I enter the first time connect to the BLE? The password for this is '0000' or '1234', but I failed both. (I removed the codes about the 'static passkey' and ran them.)
There must be a setup part for this password, but I can't found.

Can you help me with this problem?
Thank you.

[schosdas]

Thank you!

I'll refer to it and try to revise it.