MOJAVE 10.14.5 / No I have completely activated Audio and HDMI missing HELP please

[mac os x]

Hello, good day with all friends, I hope you are well in everything. ....

I want to ask for your support, to solve a problem with the

post-installation of my laptop please.

On my laptop I have installed Mojave 10.14.5 and so far I have not been able to fully activate the audio nor the HDMI

    Someone of you who can offer your support in:

Activate full sound / headphones and other / + HDMI

I only managed to activate the internal speakers of the laptop, u.u .....

(look at the photos that I have attached please audio configuration if)

https://www23.zippyshare.com/v/oEl8192h/file.html

https://www23.zippyshare.com/v/1FvKJPKd/file.html

https://www23.zippyshare.com/v/mt8v6rhk/file.html

* here my specifications:

Dell Inspiron 14 5000 series (5458)

- Intel ® Core i5-5200U CPU @ 2.20GHz

- 4GB Ram

- Intel HD Graphics 5500

- PCI Network:

Intel Dual Band Wireless-AC 3160 AC HMC WiFi Adapter

Realtek RTL8139 / 810x Fast Ethernet Adapter

- Audio

Intel Broadwell HDMI @ Intel Broadwell - Mini HD Audio

Realtek ALC255 @ Intel Wildcat Point-LP PCH High defi .....

I sent them my EFI folder too,

https://www65.zippyshare.com/v/0Q88UYCZ/file.html

- if the system AppleHDA.kext is loaded

I hope someone here can help me, I will be infinitely grateful to you,

regards,

God bless you all