You should never flash a Chinese firmware onto a Global device (and vice versa) unless you are an expert user. Doing so can cause "brick" issues where the phone refuses to boot, or you may lose essential network connectivity features.
This article provides everything you need to know about Oppo Reno 3 Pro 5G firmware—what it is, where to find it, how to update, and how to flash it manually. oppo reno 3 pro 5g firmware
The system is re-caching apps and optimizing in the background. Fix: You should never flash a Chinese firmware onto
Connect to a stable Wi-Fi network and ensure your battery is above 50%. Go to > About Phone (or System Updates ). Tap Check for Updates . If a new version is found, tap Download and Install . where to find it