Hi! I have the Indian variant of OnePlus 11. And needless to say, there've been immense amounts of battery drain after updating it to A.08. Thought of deciding to roll back to the out-of-the-box Version (CP 2447 A.07 imo; Correct me if I'm wrong though). tried doing it by separately downloading A.07 and then installing it by going into system updates, but rom verification failed. So I wanted to know whether flashing the old version would void the warranty of the device and also, will rooting void its warranty? Please suggest an alternative if applicable. Thanks!