Wifi is not working on Linux Mint 19

[aelsherif]

Hello, I've seen a lot of threads about the issue, but none seem to work for me.
I've just installed Mint 19 on an HP device and am dual booting alongside windows 10, bluetooth is working while wifi isn't.
There are no drivers available in the Driver Manager
Here are some of the information I've seen requested:

iwconfig:

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eno1      no wireless extensions.

lo        no wireless extensions.

enp0s20f0u2  no wireless extensions.

lsusb:

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Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 0bda:b009 Realtek Semiconductor Corp. 
Bus 001 Device 003: ID 0bda:58ed Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 12d1:108a Huawei Technologies Co., Ltd. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

ifconfig:

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no1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 48:ba:4e:40:44:e5  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enp0s20f0u2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.42.105  netmask 255.255.255.0  broadcast 192.168.42.255
        inet6 fe80::bc8c:405e:cb1e:f197  prefixlen 64  scopeid 0x20<link>
        ether 8a:20:b5:35:6c:d8  txqueuelen 1000  (Ethernet)
        RX packets 123968  bytes 166067805 (166.0 MB)
        RX errors 4  dropped 0  overruns 0  frame 4
        TX packets 73370  bytes 9446905 (9.4 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1401  bytes 129718 (129.7 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1401  bytes 129718 (129.7 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

rfkill:

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ID TYPE      DEVICE    SOFT      HARD
 0 bluetooth hci0   blocked unblocked

Thank you and let me know if you need more info.

[kukamuumuka]

inxi -SMNn ?

[aelsherif]

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System:    Host: mint Kernel: 4.15.0-20-generic x86_64 bits: 64
           Desktop: Cinnamon 3.8.8  Distro: Linux Mint 19 Tara
Machine:   Device: laptop System: HP product: HP Laptop 14-bp0xx v: Type1ProductConfigId serial: N/A
           Mobo: HP model: 835F v: 46.20 serial: N/A
           UEFI: Insyde v: F.09 date: 06/02/2017
Network:   Card-1: Realtek Device d723
           IF: N/A state: N/A speed: N/A duplex: N/A mac: N/A
           Card-2: Realtek RTL8111/8168/8411 PCIE Gigabit Ethernet Controller
           driver: r8169
           IF: eno1 state: down mac: 48:ba:4e:40:44:e5

[JeremyB]

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sudo apt-get install dkms git build-essential
git clone -b extended https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add ./rtlwifi_new
sudo dkms install rtlwifi-new/0.6
sudo cp -r rtlwifi_new/firmware/rtlwifi/ /lib/firmware/rtlwifi
echo "options rtl8723de ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723de.conf

Check mokutil --sb-state
If it says Secure Boot is enabled you will need to disable in BIOS after reboot

[aelsherif]

Thank you for your reply. I'm afraid nothing happened after these steps and reboot.

[JeremyB]

See the wireless script in my signature and post results

[aelsherif]

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options rtl8723de ant_sel=2

[aelsherif]

Sorry, wrong paste

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http://termbin.com/k0ki4

[JeremyB]

You need to go into BIOS and disable Secure Boot, but leave Secure Boot keys alone

[aelsherif]

Ok, that worked. Thanks a lot!