Downgrade LG Aristo 2 from Oreo to Nougat with LGUP issue

[fliphusker]

Because of an app incompatibility issue, I need a workaround for LG Aristo 2 downgrading from Oreo to Nougat.
I read a tutorial from techknight about the downgrade process using LGUP. So I grabbed a few .KDZ files from LG-firmwares.com. I get into LGUP fine using uppercut and try to install one of the .KDZ files.
It gets to 4% and gives me an error message. Please install latest DLL LAF protocol version is not match DLL.
It shows DLL=1394615440
Device=179114016

I just do not know what to do to fix this and get my Aristo 2 back to Nougat. There is no data on it I am worried about keeping.
I appreciate any advice that will help solve this and thank you for your time in advance.

 

[rogeliomalpa]

I'm in the same boat. No idea how to fix it up to now.

 

[fliphusker]

Be sure to give the file admin privileges. That is the part I missed.

 

[343 I'm not guilty spark]

Same

Because of an app incompatibility issue, I need a workaround for LG Aristo 2 downgrading from Oreo to Nougat.
I read a tutorial from techknight about the downgrade process using LGUP. So I grabbed a few .KDZ files from LG-firmwares.com. I get into LGUP fine using uppercut and try to install one of the .KDZ files.
It gets to 4% and gives me an error message. Please install latest DLL LAF protocol version is not match DLL.
It shows DLL=1394615440
Device=179114016

I just do not know what to do to fix this and get my Aristo 2 back to Nougat. There is no data on it I am worried about keeping.
I appreciate any advice that will help solve this and thank you for your time in advance.

Same here.

 

[fliphusker]

Same here.

https://www.youtube.com/watch?v=8v-hS9xhbxg&t=2s

This is a video tutorial I made after Techknight helped me out. Everything I show in the video, I learned from him. Follow the video tutorial to the letter. Do not skip any steps.