However, the community exploited a vulnerability using . As of late 2024/early 2025, developers have successfully unlocked the bootloader on the A91 without OPPO’s permission.

Step 4 — Flashing and tweaks: Using the custom recovery she wiped system caches, installed the ROM, then flashed the compatible vendor and add-ons (gapps or microG, Magisk for root). On first boot she noticed a faster UI, fewer preinstalled apps, and configurable privacy controls. The camera needed a small library patch; she applied the community fix and regained acceptable camera quality.