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‎01-03-2019 12:30 PM - edited ‎01-03-2019 12:40 PM

HP Recommended
Product: N4P96AV#161
Operating System: Microsoft Windows 10 (64-bit)

Helle everyone, my case is the my pc is beeping 5.2 and it means this the embedded controller(EC) can't find a valid firmware then in the web we can't find too much info about this and the firmware that I need to reset is the firmware of the EC or the firmware of the bios Chip(mx25l12873f) which is not supported by ch341a pro(eeprom burner) I know that I can replace de motherboard and all is fine but the thing is that I want to learn something about this and I'm so curious

Thanks in advance 

1 person had the same question
1 REPLY 1

‎01-04-2019 07:39 AM

HP Recommended

Hi

You are correct...

The embedded controller cannot find valid firmware.

 

Controller is missing appropriate ROM.

1 Remove any recently inserted Hardware.

2 Reset CMOS.

3 Update BIOS while affected components are removed.

4 Test known good component.

5 Replace component or Main-Board as needed.

https://support.hp.com/us-en/document/c02693833

 

Just a point about replacing the Main Board, it needs a "tattoo" to be able to register with HP and Microsoft I believe.

https://support.hp.com/us-en/product/hp-prodesk-400-g3-small-form-factor-pc/8354586/model/8354591/do...

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