Intel NUC NUC8i7HNK Loop boot ?

[CLMDMKRNL]

Hi guys,

Currently i'm facing issue to boot my NUC.

Feel free to watch my uploaded video :

https://www.youtube.com/watch?v=ACQBN6BCwik

NUC only "start" when i plug the power, and then leds are just starting to get in loop as you can see. 
No Video output from HDMI or Mini DP, tested on multiple displays and cable : reflashing BIOS will be difficult and i'm totally blind.

I feel like that my NUC is "bricked"

I tried it with each part disassembled : RAMS, SSD, CMOS battery, change the power plug hole .. and same results/behavior.
Tried CLEAR CMOS too.

Always same behavior.

To be complete in my description :

Since 6 months after moving to my new location, when i shut it down properly from WIN10 : i always had to unplug/plug power cord to be able to boot my NUC. Otherwise, start button is totally ineffective. No leds, no sound ..

It worked perfectly for a long time and i have no clue, no guess ...

Please help me and feel free to ask me questions.

[Alberto_Sykes]

CLMDMKRNL, Thank you for posting in the Intel® Communities Support.

In reference to this case, first of all, we would like to inform you that at this point pretty much you basically tried all the troubleshooting steps that we recommend for this scenario.

You mentioned, "reflashing BIOS will be difficult", there is an option that we can try which is the BIOS recovery to the latest version, which is 0064, following the instructions in the link below. There are 2 different ways to do it, if at some point the Intel® NUC is booting to Windows*, try the "BIOS Recovery by Power Button Menu" fist, if it is not booting at all then try the "BIOS Recovery by Security Jumper": 

https://www.intel.com/content/www/us/en/support/articles/000005636/intel-nuc.html

https://downloadcenter.intel.com/download/29995/BIOS-Update-HNKBLi70-86A-

"I feel like that my NUC is "bricked", that very well could be the case, especially since the problem remains after testing the unit under the procedure you previously described: "I tried it with each part disassembled: RAMS, SSD, CMOS battery, change the power plug hole .. and same results/behavior.

Tried CLEAR CMOS too."

So, if the problem remains after remains after trying the "BIOS Recovery", then the next thing to do will be to get in contact with your local Intel® Support department directly for them to further assist you with the warranty process to try to replace the unit.

Chat support:

http://intelsupportchat.force.com/icslivechat/ics_tech_processor_ww_english_Chat,

For phone support, depending on your location, you will see the contact information on the links below:

EMEA contact information: https://www.intel.com/content/www/us/en/support/contact-support/emea-contact.html

APAC contact information: https://www.intel.com/content/www/us/en/support/contact-support/apac-contact.html

LAR contact information: https://www.intel.la/content/www/xl/es/support/contact-support/lar-contact.html

North America: Phone Number 1-916-377-7000, Monday – Friday 7:00 AM to 5:00 PM (Pacific Time).

Any questions, please let me know.

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel

[Alberto_Sykes]

Hello CLMDMKRNL, I just wanted to check if the information posted previously was useful for you and if you need further assistance on this matter?

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel

[MRoss5200]

Are you behind anything like a multiple power switch or KVM? Have you tried different RAM? Are you over clocking the system or memory? Have you tried it without anything installed other than ram? Seems strange that you have been having to plug/unplug every time you power on. Make sure the yellow jumper is on pins 1-2 as any other settings may be what is causing the system to not boot properly.

[Alberto_Sykes]

Hello CLMDMKRNL, Since I have not heard back from you, we are closing the case, but if you have any additional questions, please post them on a new thread so we can further assist you with this matter.

MRoss5200, Thank you very much for your suggestions.

Regards,

Albert R.

Intel Customer Support Technician

A Contingent Worker at Intel