Can the H830 be rolled-back all the way to Marshmallow 6.01 10j ?

[poog]

Was wondering if the H830 with latest updates, be rolled-back all the way to 10j Marshmallow 6.01? or any version of marshmallow.
Thanks

 

[Nick8228]

Was wondering if the H830 with latest updates, be rolled-back all the way to 10j Marshmallow 6.01? or any version of marshmallow.
Thanks

You can flash any ROM ARB01, 10J - just like that, so you can!

 

[Mattzees]

How would you do this? I have a h830 with Oreo, and I can't install TWRP or flash anything at all.

I followed the instructions to roll back to 20a using LGUP, but have not had any success. When I attempt to flash TWRP, I get the message like "remote command unknown".

Don't know how to troubleshoot why the rollback is not working. Any advice or links?