Even new OP9 also lacks when it comes to battery performance.
Have you checked location permissions?
I'm also facing the heating issue. Specially, while using camera it says that flash has been disabled due to overheating.
Yahh.. Should've been priced around 10k
Yahh. Specially heating is really a big deal
Try oxygen Updater
I can totally understand your frustration! I sometimes feel like shifting to 🍏..!
I have done the factory reset and now it's working fine. In case I face the same issue again, then I will definitely try this. Thanks buddy!