No OS and TWRP won't flash ROMs?

[Ishan Ghimire]

I encountered some problems on my phone after trying to install what seems to be a corrupted magisk module. I now don't have any OS on my phone (at least according to TWRP) and when I try to flash the stock ROM, I get error messages: "Zip Treble compatibility error!" and "Invalid zip file format!". I have made sure that TWRP isn't checking the signatures too.

Edit: I know you can get these errors when you unzip and rezip files sometimes so I have made sure that they are exactly what I downloaded too.

Edit2: Just searched 'no OS' and this seems to be a relatively common problem, however it seems like most people did what I did too, and its not working for me. I am downloading a custom ROM at the moment.

 

[Ishan Ghimire]

I encountered some problems on my phone after trying to install what seems to be a corrupted magisk module. I now don't have any OS on my phone (at least according to TWRP) and when I try to flash the stock ROM, I get error messages: "Zip Treble compatibility error!" and "Invalid zip file format!". I have made sure that TWRP isn't checking the signatures too.

Edit: I know you can get these errors when you unzip and rezip files sometimes so I have made sure that they are exactly what I downloaded too.

Edit2: Just searched 'no OS' and this seems to be a relatively common problem, however it seems like most people did what I did too, and its not working for me. I am downloading a custom ROM at the moment.

Edit3: sorry for bothering you guys whit this common problem. I did not know you could only flash oos from Oxygen recovery

 

[Revenant Ghost]

You can flash stock OOS ROMs from TWRP, as long as they're the full zips, NOT partial updates. And as far as the compatibility error is concerned: just flash a version of TWRP that has the "no compatibility check" feature. Or delete compatibility.zip from the stock ROM, using the file browser, Total Commander, then flash.