MPM Locked, Need to unlock manufacturer programming mode

[HWSW]

hi,

I replaced the motherboard in for All in One  HP 22-b040nx whose manufacture programing mode was in unlock mode somehow I locked it but I forgot to add missing information for system board, product name ad serial number now it is not unlocking I came to know that I need SMC.BIN to unlock it so that I can enter the missing information as it prompts now on every boot, kindly help me I have UUID for the motherboard

[Raj1788]

@HWSW

Thank you for joining HP Community

HP Does not recommend changing the motherboard 

Whenever the motherboard is replaced the motherboard should be tattooed the manufacturer.

I suggest you contact Hp Support for further assistance.

1) Click on this link - http://www.hp.com/contacthp/ 

2) Select your product type below.

3) Enter the serial of your device. 

4) Select the country from the drop-down. 

5) Select the chat or get phone number options based on your preferences. 

Fill the web-form and proceed further.

Keep me posted.

Have a great day!

Cheers:)