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USB-C to HDMI adapter not visible

Dear everyone,

I am aware about lots of topics about USB-C to HDMI adapters on this forum, yet my situation is a little bit different.

What I've got:

- 2 x NUC7i3BNK (second one was bought 3 months after first one)

- 2 x i-tec USB-C HDMI Adapter

- 4 x LG IPS Monitor 22MP58 | Sleek Cut Design IPS LED Monitor

Basically I want to have two double-monitor systems.

The case is that first NUC works perfectly with both adapters, but second doesn't work with any. After plugging adapter the screen sees something for a moment, but eventually shows "No signal". The OS here doesn't matter, since on NUC number one both screens work also when in UEFI configuration. Tried upgrading BIOS, without any success. Also, I couldn't find any settings in UEFI which could change anything.

I'm afraid that buying new adapter would be a waste of money, so my question is - what can I do?

Kind regards

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Super User Retired Employee

Well, this second NUC may have a hardware problem. If you cannot do it through your point of purchase, you might want to directly contact Intel Customer Support and make arrangements for them to replace this unit. Here is contact information, by geography: @11 Intel Customer Support Contact Information for US and Canada Intel Customer Support Contact Information for Europe, Middle East and Africa Intel Customer Support Contact Information for Asia-Pacific Intel Customer Support Contact Information for Latin America

You can also try using the Intel Customer Support Chat Service, but this is restricted to PST TZ hours.

Hope this helps,