This is where come in.
Cara custom Rom Oppo A12 / Oppo A11k - Rom Terbaik no Bug - Pixel Experience Android 12 - YouTube. This content isn't available. www.youtube.com · Gaming Hkr
Do not click any "oppo a11k custom rom link" yet. If you flash a GSI without preparing, you will your phone (no recovery, black screen, dead).