What'll happen?

[gapple]

What will happen if I install the oxygenos for the oneplus 6t/7t on my 5t?

[Matty2048]

it probably either not install or brick your device i wouldn't recommend it.

[Retrodex Gaming]

At best, fail, at worst brick.

 

There's a version of lineage OS for the 5t on the XDA forums that's pretty good! 

[Abhinav2003]

20 hours ago, gapple said:

What will happen if I install the oxygenos for the oneplus 6t/7t on my 5t

If you directly flash a custom Ron for the 6t/7t, you'll end up bricking your device. I don't know why you need to do that but if you really want to, xda has a couple of times you can go for