Force backup PIN?

[AC Question]

In the latest software update, for me, the phone said that the backup PIN will not be used anymore. This is a problem since my knock code isn't working. I've tried many alterations of my knock code, and the original one, but it won't unlock. Is there anyway to force a backup PIN unlock?

 

[belodion]

What phone, and what update?

 

[Zane Papek]

(Created account to reply)
My phone type is an LG-K371
And I do not know what update it is

 

[belodion]

Welcome.

I'm sorry, I don't understand why that message is shown. Was the knock code working before the update?