Problem with installing to oneplus 9 pro

/e/OS Devices OnePlus
,
3

So this is just what happened next in the example we are following OnePlus - 9 Pro - lemonadep - Documentation Suggestions - #14 by GaelDuval

Speculation this has happened as you device got contaminated during the earlier failure which happened following install instructions.

What to do now ?

  1. Some would revert to Manufacturer’s stock ROM at Android 12 and start again.

  2. The method used next in our example was to overwrite all partitions which may have been at risk of being contaminated.

Do you have a Manufacturer’s stock ROM at Android 12 ?