Found the issue, flashed the wrong Image... It's an A/B OS (sytem as root) 
its working now, for details head to my signature...

ZeldaMaster501 wrote:

I'll try in a couple of days/hours.  I was looking around and I discovered that the thermal camera is actually called "MyFLIR for Cat S61" under the play store.  I can assume that the camera will work but not sure.  I'll update when I get to this!

It does not. I have tried both systems: lineage-17.1-20200511-UNOFFICIAL-treble_arm64_bvN.img and Havoc-OS-v3.5-20200522-Official-GApps-arm64-ab.img. They boot fine and are usable (Google Pay complains about the root or  modified system) but the flir camera does not work. "MyFLIR for Cat S61" tries to start up, asks for permissions and then crashes. Going back to stock for now. 

Ceder wrote:

ZeldaMaster501 wrote:

I'll try in a couple of days/hours.  I was looking around and I discovered that the thermal camera is actually called "MyFLIR for Cat S61" under the play store.  I can assume that the camera will work but not sure.  I'll update when I get to this!

It does not. I have tried both systems: lineage-17.1-20200511-UNOFFICIAL-treble_arm64_bvN.img and Havoc-OS-v3.5-20200522-Official-GApps-arm64-ab.img. They boot fine and are usable (Google Pay complains about the root or  modified system) but the flir camera does not work. "MyFLIR for Cat S61" tries to start up, asks for permissions and then crashes. Going back to stock for now. 

Hello, You'd better contact the professional after-sale department directly: support02@blackview.hk

Xtreme wrote:

Hahahaha lol yes it is getting very annoying now.  also quite a problem on other Topics.  Problems are better discussed in a topic than mail contact because nobody else will know the answer after solving it and the topic will be canceled.

Hello, thank you for your feedback. We can talk about any topics at this forum, but if you want professional services, I think you'd better contact the professional after-sale department and they will help you deal with problems you want to solve.

Seriously blackview_admin? You censored me?

You are useless on this topic, admit it and stop posting your "you'd better contact the professional after-sale department"
For the last time : we are talking about an alternative firmware that have nothing to do with Blackview.
You can't even fix your own firmware and you think you can fix Lineage

Forget this topic and help users that really need help!

Why not join our TG group? details see SIG

sams wrote:

Seriously blackview_admin? You censored me?

You are useless on this topic, admit it and stop posting your "you'd better contact the professional after-sale department"
For the last time : we are talking about an alternative firmware that have nothing to do with Blackview.
You can't even fix your own firmware and you think you can fix Lineage

Forget this topic and help users that really need help!

Yes they did censor me aswell... not the best way get a good customer relation... you may switch to other platforms... as above mentioned

Ceder wrote:

ZeldaMaster501 wrote:

I'll try in a couple of days/hours.  I was looking around and I discovered that the thermal camera is actually called "MyFLIR for Cat S61" under the play store.  I can assume that the camera will work but not sure.  I'll update when I get to this!

It does not. I have tried both systems: lineage-17.1-20200511-UNOFFICIAL-treble_arm64_bvN.img and Havoc-OS-v3.5-20200522-Official-GApps-arm64-ab.img. They boot fine and are usable (Google Pay complains about the root or  modified system) but the flir camera does not work. "MyFLIR for Cat S61" tries to start up, asks for permissions and then crashes. Going back to stock for now. 

I tried the non-AB version of the ROM.  I missed the fact that the phone uses AB and ended up flashing the non-AB version  .  Disregard my original post.  

Tomron wrote:

sams wrote:

Seriously blackview_admin? You censored me?

You are useless on this topic, admit it and stop posting your "you'd better contact the professional after-sale department"
For the last time : we are talking about an alternative firmware that have nothing to do with Blackview.
You can't even fix your own firmware and you think you can fix Lineage

Forget this topic and help users that really need help!

Yes they did censor me aswell... not the best way get a good customer relation... you may switch to other platforms... as above mentioned

Honestly, you guys, we should just start a petition to get one of us to replace the admin  !  Also sams post made my day 

ZeldaMaster501 wrote:

Ceder wrote:

ZeldaMaster501 wrote:

I'll try in a couple of days/hours.  I was looking around and I discovered that the thermal camera is actually called "MyFLIR for Cat S61" under the play store.  I can assume that the camera will work but not sure.  I'll update when I get to this!

It does not. I have tried both systems: lineage-17.1-20200511-UNOFFICIAL-treble_arm64_bvN.img and Havoc-OS-v3.5-20200522-Official-GApps-arm64-ab.img. They boot fine and are usable (Google Pay complains about the root or  modified system) but the flir camera does not work. "MyFLIR for Cat S61" tries to start up, asks for permissions and then crashes. Going back to stock for now. 

I tried the non-AB version of the ROM.  I missed the fact that the phone uses AB and ended up flashing the non-AB version  .  Disregard my original post.  

TBH I did the same as you did, and ended up in constant bootloops... why not join our TG group?