topic Re: KW45 NCU and Digital Key Passive Entry in Wireless MCU

KW45 NCU and Digital Key Passive Entry

ciband — Thu, 06 Nov 2025 21:24:50 GMT

I am having an issue with the KW45 NBU firmware. During the Digital Key passive entry scenario, the NBU firmware is returning advertisingAddressResolved == FALSE. This is causing passive entry not to work. This is running the KW45 digital key SDK sample software for the key Fob.

Any idea what could be causing this?

Thank you.

Re: KW45 NCU and Digital Key Passive Entry

luis_maravilla — Fri, 07 Nov 2025 18:17:16 GMT

Hello,

Could you help us confirm the following:

What SDK version are you using?

Are you using an NXP development board [KW45B41Z-EVK] or a custom board with KW45?

Are the NBU image updated? Could you tell us the version please.

For more instructions on Updating NBU for Wireless Examples please refer to link.

Best Regards

Luis